All Tools Directory
Search and filter all browser tools. Fast, secure, and 100% private.
Image Tools
Compress, resize, convert, crop, watermark, and pick colors from images completely offline.
Image Compressor
Compress JPG and WebP images with custom quality controls and real-time file size comparison.
Image Resizer
Resize images by exact pixel dimensions or percentage with aspect ratio lock.
Image Format Converter
Convert between JPG, PNG, and WebP formats with transparent background color control.
Image Cropper
Crop photos with freeform selection or predefined aspect ratios (1:1, 4:3, 16:9, 3:2).
Image Rotator and Flipper
Rotate images by 90°, 180°, or 270°, and flip horizontally or vertically.
Image Watermark Tool
Add custom text or image logo watermarks with position, opacity, and angle controls.
Image Colour Picker
Sample exact pixel colors from any uploaded image and copy HEX, RGB, or HSL values.
Favicon Generator
Generate standard PNG icons and a valid multi-resolution ICO file for websites and apps.
Photo Collage Maker
Combine multiple photos into customizable grid, split, and masonry collage layouts.
Image to Base64 Converter
Convert images to Base64 Data URLs and decode Base64 strings back to downloadable images.
Meme Generator
Create custom memes with classic Impact font, top and bottom captions, text styling, and instant high-res export.
Blur & Pixelate Sensitive Areas
Redact passwords, faces, credit cards, and sensitive details on images with interactive blur or pixelation boxes.
Image Splitter & Grid Cutter
Slice large photos into 3x1, 3x2, or 3x3 Instagram grids and custom NxM square tiles with instant zip download.
EXIF Metadata Viewer & Stripper
Inspect hidden camera settings, ISO, exposure, and GPS location in JPEG photos, or strip all metadata with one click.
Image Filter Studio & Effects
Enhance photos with artistic filters (Vintage, Sepia, Grayscale, Cyberpunk) and fine-tune brightness, contrast, and saturation.
Image Color Inverter & Negative Filter
Invert colors of any photo to produce stunning negative photography, solarized effects, or dark aesthetic images.
SVG Optimizer & Cleaner
Clean, minify, and strip bloated metadata, editor tags, and unused XML namespaces from SVG vector graphics.
Image Aspect Ratio & Dimension Matcher
Calculate exact aspect ratios (16:9, 4:3, 1:1, 21:9), find nearest standard ratios, and compute target resize dimensions.
ASCII Art & Text Art Generator
Convert pictures into beautiful monospace ASCII character art with customizable contrast, width, and character sets.
Multi-Size ICO & Favicon Packer
Convert PNG/JPG images into authentic multi-resolution Microsoft .ICO files containing 16x16, 32x32, and 48x48 icon layers.
Digital Signature Maker & Transparent PNG
Draw your smooth electronic signature online with customizable ink colors, line thickness, auto-crop whitespace, and transparent PNG download.
Passport & Visa Photo Maker (2x2 / 35x45mm)
Crop, align, and format official biometric passport and visa photos with head/eye guides and printable 4x6 inch 6-photo sheets.
Circle Crop & Profile Picture Maker
Crop photos into perfect circular avatars with custom border rings, gradient outlines, shadow glow, and live social mockup previews.
Instagram Grid Splitter (3x1 & 3x3 Panoramas)
Slice wide photos into 3x1 banner strips or square 3x3 mega grid tiles for cohesive, multi-post Instagram profile showcases.
Image Color Replacer & Hue Swapper
Swap or replace any specific color in an image with a new shade using interactive eyedropper selection and adjustable tolerance thresholds.
GIF Frame Extractor & Splitter
Deconstruct animated GIFs into individual PNG frames with interactive timeline scrubber, frame rate inspection, and 1-click frame downloads.
Pixel Art & Sprite Nearest-Neighbor Upscaler
Scale up retro game sprites, pixel art, and icons by 2x, 4x, 8x, or 16x without bilinear blur, preserving razor-sharp pixel edges.
Photo EXIF GPS Location Extractor & Map Pin
Extract hidden GPS coordinates, altitude, timestamp, and camera metadata from photos, view on map, and strip location for privacy.
Vintage Sepia, Cyanotype & Film Grain Studio
Transform digital photos into authentic historical photographic prints: 1880s Warm Sepia, 1840s Cyanotype Blue, Film Noir B&W, and analogue grain.
Social Media Multi-Format Auto Resizer
1-click smart resizer generating official dimension crops for YouTube Thumbnails, X/Twitter Headers, Facebook Covers, and LinkedIn Banners.
Photo Privacy & EXIF GPS Scrubber
Inspect and permanently remove hidden GPS coordinates, camera serial numbers, and timestamp metadata from photos.
Image Border & Padding Generator
Add colored borders, custom padding frames, and rounded corners to images with live preview and PNG download — no design software needed.
SVG to PNG Converter (Vector to Raster)
Convert SVG vector files to high-resolution PNG images at any scale factor with custom background and transparent output support.
Image Color & Luminance Histogram Analyzer
Analyze the exposure, dynamic range, and RGB channel distribution of any image with real-time client-side Red, Green, Blue, and Luminance histograms.
SVG Path to CSS clip-path Converter
Convert SVG
Image Background Remover & Transparent PNG Keyer
Remove solid, white, or color-keyed backdrops to produce crystal-clear transparent PNGs with custom tolerance and edge feathering.
Passport & Visa Photo Maker (Multi-Country 2x2 / 35x45mm Grid)
Create compliant biometric passport and visa photos with official country presets (US 2x2, Schengen 35x45mm), facial guidelines, and 4x6 print grids.
PNG to JPG Converter
Convert PNG images with transparency to optimized high-quality JPG.
PNG to WEBP Converter
Convert PNG images to modern WebP format for up to 35% smaller file size.
PNG to BMP Converter
Convert PNG graphics to uncompressed Windows Bitmap (BMP) raster files.
PNG to GIF Converter
Convert static PNG pictures to lightweight GIF image format.
PNG to ICO Converter
Convert PNG logos and graphics to multi-size Windows icon (.ico) files.
JPG to PNG Converter
Convert JPG photos to lossless PNG format with transparent canvas support.
JPG to WEBP Converter
Convert JPEG photos to next-gen WebP format for faster website loading.
JPG to GIF Converter
Convert JPG photos to 8-bit color indexed GIF format.
JPG to ICO Converter
Convert JPG images into Windows and website favicon ICO files.
JPG to BMP Converter
Convert compressed JPG images into raw uncompressed Windows BMP bitmaps.
WEBP to JPG Converter
Convert WebP images to universally compatible JPEG format.
WEBP to GIF Converter
Convert WebP graphics and frames to standard GIF format.
WEBP to PNG Converter
Convert WebP pictures to lossless PNG format preserving transparency.
WEBP to BMP Converter
Convert modern WebP images to legacy Windows Bitmap (BMP) format.
WEBP to ICO Converter
Convert WebP logos to .ico favicon icons.
BMP to JPG Converter
Compress large uncompressed BMP files into compact JPG photos.
BMP to GIF Converter
Convert BMP raster bitmaps to compact GIF images.
BMP to PNG Converter
Convert BMP bitmaps to lossless, compressed PNG format.
BMP to WEBP Converter
Convert large BMP files into ultra-compact next-gen WebP images.
BMP to ICO Converter
Convert Windows BMP bitmap files to ICO format.
ICO to JPG Converter
Convert Windows ICO icon files to standard JPG photos.
ICO to GIF Converter
Convert favicon ICO icons to GIF format.
ICO to PNG Converter
Extract transparent high-resolution PNG images from ICO icon files.
ICO to WEBP Converter
Convert ICO icons to compact modern WebP graphics.
ICO to BMP Converter
Convert ICO icons back to Windows Bitmap format.
GIF to JPG Converter
Convert GIF frames into high-resolution JPG images.
GIF to ICO Converter
Convert GIF images to website favicon ICO format.
GIF to PNG Converter
Convert GIF images to crisp 24-bit PNG with transparency support.
GIF to WEBP Converter
Convert heavy GIF files to next-generation lightweight WebP.
GIF to BMP Converter
Convert GIF images to uncompressed BMP format.
HEIC to PNG Converter
Convert Apple iPhone HEIC/HEIF photos to universal PNG format.
HEIC to JPG Converter
Convert iPhone HEIC photos to widely supported standard JPG photos.
HEIC to GIF Converter
Convert HEIC pictures to standard GIF format.
YouTube Thumbnail Downloader
Download full-resolution HD, 4K, and HQ thumbnails from any YouTube video URL with instant preview.
Image Optimizer Tool
Optimize and compress JPG, PNG, and WebP images with custom visual quality controls and file size preview.
EXIF Metadata Reader
Read camera models, shutter speed, ISO, focal length, date, and GPS metadata embedded in photos.
Base64 to Image Tool
Convert Base64 data URI strings (PNG, JPG, SVG, WebP, GIF) into viewable images and download them directly.
PDF & Documents
Merge, split, organize, extract text, watermark, and convert PDFs right inside your browser.
Merge PDFs
Combine multiple PDF documents into a single organized file in your chosen order.
Split PDF
Extract specific pages or page ranges from a PDF document into separate files.
PDF Page Organiser
Preview page thumbnails, reorder pages, rotate sideways pages, and delete unwanted sheets.
Images to PDF
Convert multiple images into a clean PDF with page size, orientation, and margin settings.
PDF to Images
Convert PDF document pages into high-resolution PNG or JPG image files.
PDF Text Extractor
Extract all selectable text from PDF documents while preserving page structure and word counts.
PDF Watermark Tool
Add customizable text watermarks across PDF pages with rotation, opacity, and color options.
PDF Page Numbering
Insert clean page numbers into headers or footers with customizable format and starting offsets.
Image to Text (OCR)
Extract machine-readable text from scanned documents, photos, and receipts using in-browser OCR.
Resume Builder
Build professional resumes with live visual preview and pixel-perfect browser Save as PDF export.
PDF Metadata Editor
View and edit title, author, subject, keywords, and creator metadata of PDF files directly in your browser.
PDF Grayscale & Black-White Converter
Convert color PDF documents to clean black-and-white / grayscale to reduce printer ink consumption and file size.
PDF Form Flattener
Flatten interactive fillable PDF forms into read-only, non-editable static PDF documents.
PDF Dark Mode & Night Reader
Convert bright white PDF pages into eye-friendly dark mode for comfortable night reading and studying.
PDF Single Page Rotator
Rotate specific individual pages in a PDF document (90°, 180°, or 270°) without altering other pages.
PDF Page Duplicator & Multiplier
Duplicate individual pages or page ranges multiple times within a PDF for printable tickets, forms, and badges.
PDF Page Order Reverser
Reverse the entire page order of a PDF file from last page to first in one instant click.
PDF Margin Cropper & Trimmer
Crop white margins and empty borders from PDF pages to optimize reading on tablets, Kindles, and mobile phones.
PDF Booklet Maker & 2-Up Imposition
Re-arrange and pair PDF pages for double-sided folding into saddle-stitched booklets and brochures.
PDF Header Cleaner & Repair Utility
Repair corrupted PDF files, rebuild damaged cross-reference (XREF) tables, and sanitize malformed headers.
PDF Redactor (Black Out Sensitive Text & Data)
Permanently black out private names, account numbers, and sensitive text in PDF documents with vector flattening to prevent unauthorized recovery.
PDF to Clean Word (.docx) Document Extractor
Extract text, headings, and paragraph blocks from PDF files and compile them into a clean, editable Microsoft Word (.docx) document locally.
PDF Paper Size Converter (A4, Letter, Legal, A3)
Rescale, fit, and center PDF document pages onto international paper standards: A4, US Letter, US Legal, A3, and Executive.
PDF Page Reorder by Visual Thumbnail Drag-and-Drop
Reorganize, reorder, swap, and delete PDF pages visually with an interactive thumbnail grid and 1-click reorganized export.
Printable Graph, Lined & Dot Grid Paper PDF Generator
Generate and download custom printable PDF templates: 5mm Math Graph Paper, 1/4 Inch Grid, Dot Grid, Isometric 3D, and Cornell Notes.
PDF Password Encryptor & Permissions Locker
Secure sensitive PDF files with AES user passwords to prevent unauthorized viewing, and restrict printing or copying permissions.
Side-by-Side PDF Visual Split Compare
Compare two revisions of a PDF side-by-side with synchronized scrolling, split-slider overlay, and visual difference pixel highlighting.
PDF Certificate Bulk Generator from CSV
Upload a single blank certificate PDF template and paste attendee names from CSV to automatically generate a multi-page personalized certificate package.
PDF Running Header & Footer Text Inserter
Inject running headers, department titles, confidential notices, and custom dates across all pages of a PDF document with margin controls.
PDF Digital Signature Inserter & Field Placer
Draw or upload your handwritten signature, place it on any page of your PDF, reposition, resize, and download the signed document with zero signups.
PDF to JPG & PNG Converter
Convert PDF pages into high-resolution JPG or PNG images with 300 DPI support and 1-click ZIP download.
Images to PDF Maker
Combine multiple JPG, PNG, and WebP photos into a single professional PDF document with page layout and margin controls.
PDF Page Size & Print Format Reference
Complete reference for all ISO 216 paper sizes (A0–A10, B-series, C-series), US formats, and common print/screen dimensions in mm, cm, inches, and px.
PDF / Document Reading Time Estimator
Estimate reading time for any PDF or text document based on page count or word count, with reading speed presets for slow, average, and fast readers.
PDF Page Size & Print Format Reference
Complete reference for all ISO 216 paper sizes (A0–A10, B-series, C-series), US formats, and common print/screen dimensions in mm, cm, inches, and px.
PDF / Document Reading Time Estimator
Estimate reading time for any PDF or text document based on page count or word count, with reading speed presets for slow, average, and fast readers.
Client-Side PDF Compressor & DPI Optimizer
Reduce PDF file size by intelligent DPI downsampling and JPEG re-compression 100% locally in your browser.
PDF Password Remover & Permissions Unlocker
Strip known passwords and edit/print permissions restrictions from encrypted PDF documents 100% offline.
PDF Page Range Extractor
Extract specific pages or custom page ranges (e.g. 1, 3-5, 8-12) into a brand new isolated PDF file.
Interactive PDF Whiteout & Clean Eraser
Cover sensitive information, confidential stamps, or typos with permanent clean whiteout patches.
PDF Bates Numbering & Legal Document Stamper
Apply sequential Bates stamps, legal case numbers, and trial exhibits across multiple PDF pages.
PDF N-Up Multi-Page Handout Maker (2-Up, 4-Up, 6-Up)
Impose and arrange 2, 4, 6, or 9 PDF presentation slides or pages onto a single sheet to save paper and printing toner.
Markdown & HTML to Formatted PDF Converter
Convert live Markdown or raw HTML into gorgeous, beautifully styled vector PDF documents with custom typography.
PDF Ink Saver & High-Contrast Monochrome Converter
Strip ink-heavy color backgrounds and convert color PDFs to crisp high-contrast black and white to save 70% printer toner.
PDF Form Field Inspector & Data Exporter
Inspect interactive AcroForm fields, view filled values, and export form data to structured JSON or CSV spreadsheet.
PDF Page Size Normalizer & Aspect Ratio Standardizer
Detect and standardize mixed page dimensions across a PDF into uniform A4, US Letter, Legal, or A3 dimensions with centered scaling.
Text Utilities
Count words, convert casing, clean whitespace, compare text, generate slugs, and edit Markdown.
Word and Character Counter
Analyze text statistics in real time: words, characters, sentences, paragraphs, and reading times.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and more.
Text Cleaner
Clean up text by removing extra spaces, trailing whitespace, empty lines, HTML tags, and tabs.
Duplicate Line Remover
Remove duplicate lines from lists and datasets while preserving original sequence or sorting.
Text Comparison Tool
Compare two text snippets side-by-side or inline to spot additions, deletions, and modifications.
Find and Replace Tool
Search and replace text with plain-string or regular expression matching and live match counters.
URL Slug Generator
Convert article titles and headlines into clean, SEO-friendly URL slugs with custom separators.
Markdown Editor and Preview
Edit Markdown with live side-by-side synchronized preview, GitHub formatting, and HTML export.
Readability Score Calculator
Analyze text readability with Flesch Reading Ease, Flesch-Kincaid Grade Level, Gunning Fog Index, sentence count, and syllable metrics.
List Alphabetizer & Sorter
Sort text lists alphabetically (A-Z, Z-A), by character length, reverse list order, or shuffle randomly with line prefix numbering.
Morse Code Translator with Audio
Translate English text to Morse code and decode Morse signals back to text with Web Audio API sound playback.
Binary to Text & Text to Binary
Convert plain text to 8-bit binary code (0s and 1s) and decode binary byte streams back to readable ASCII text.
Caesar Cipher & ROT13 Decoder
Encrypt and decrypt text using Caesar shift ciphers and classic ROT13 with interactive shift key slider.
Palindrome Checker & Word Analyzer
Test words, phrases, numbers, and poetry to check if they read identically backward and forward, with detailed character breakdown.
Anagram Solver & Permutation Finder
Find anagrams, word unscramblers, and letter permutations instantly with dictionary lookups and letter frequency charts.
Zalgo Glitch & Corrupted Text Generator
Transform plain text into chaotic, spooky, distorted glitch text using combining Unicode diacritical marks.
NATO Phonetic Alphabet Converter
Convert words and codes into the ICAO/NATO phonetic spelling alphabet (Alpha, Bravo, Charlie) with audio pronunciation guide.
Text Reverser & Upside Down Flipper
Reverse text character-by-character, invert word orders, or flip entire sentences upside-down using inverted Unicode characters.
Word Frequency Counter & Keyword Cloud
Analyze text to discover most frequent words, calculate keyword density percentages, and generate visual keyword tag clouds.
Tabs to Spaces & Whitespace Normalizer
Convert tabs to spaces (2, 4, 8 spaces), spaces to tabs, strip trailing whitespace, and eliminate blank lines from code and text.
Subtitle Format Converter (SRT ⇄ VTT) & Time Shifter
Convert subtitle files between SubRip (.srt) and WebVTT (.vtt), adjust timestamps by positive or negative milliseconds, and export clean text transcripts.
Fancy Font & Aesthetic Unicode Text Generator
Convert normal text into 20+ copy-paste aesthetic Unicode fonts: Cursive Script, Fraktur Gothic, Small Caps, Double-Struck, Bubble Text, and Monospace.
Advanced Developer & Writing Case Converter
Convert text instantly across 10+ naming conventions: Title Case (AP/Chicago), PascalCase, camelCase, kebab-case, snake_case, CONSTANT_CASE, and dot.case.
Duplicate Line Remover & Occurrence Frequency Counter
Find duplicate lines in email lists, logs, or keywords, count exact occurrence frequencies, sort by count or alphabetically, and download clean unique entries.
Visual Markdown Table Generator & Spreadsheet Grid
Build clean, beautifully aligned Markdown tables using an interactive spreadsheet grid. Add columns, set column text alignment, and copy ready-to-use syntax.
CSV ⇄ TSV & Custom Delimiter Converter
Swap separators between Comma-Separated Values (CSV), Tab-Separated Values (TSV), Semicolons, Pipes (|), and custom delimiters with quote escaping.
Custom Lorem Ipsum & Placeholder Text Generator
Generate dummy filler text by exact word count, sentence count, or paragraphs. Option to wrap in HTML paragraph, list, or heading tags for web mockups.
Text Scrambler, Anonymizer & Character Shuffler
Scramble word orders, randomize internal letters while keeping first/last characters readable (Typoglycemia), or anonymize letters to redact text in mockups.
NATO Phonetic Alphabet Translator & Radio Spellout
Spell out names, complex serial keys, license plates, and passwords using the official NATO / ICAO / Aviation phonetic alphabet (Alpha, Bravo, Charlie).
Text to Unicode / ASCII Art Generator
Transform any text into large-format ASCII and Unicode block art letters using a library of banner fonts for headings and signatures.
Duplicate Line Finder & Remover
Instantly detect and remove duplicate lines from any text, data, CSV exports, or mailing lists with case-sensitivity and whitespace controls.
Invisible Character & Zero-Width Space Detector
Detect, highlight, and remove hidden invisible Unicode characters — zero-width spaces, soft hyphens, non-breaking spaces, and bidirectional overrides that break code.
LLM Prompt Token Counter & Cost Estimator
Estimate token counts and API costs for OpenAI (GPT-4o, o1), Anthropic (Claude 3.5 Sonnet), and Google (Gemini 1.5 Pro) with character-to-token ratio analysis.
Text to Speech (TTS) & Natural Voice Reader
Listen to any text read aloud with natural sounding voices, speed controls, pitch tuning, and word tracking 100% locally.
Speech to Text & Voice Typing Dictation
Dictate notes, emails, and articles in real time with continuous voice typing and punctuation recognition.
Regex Data Extractor (Emails, URLs, Phone Numbers, IPs)
Instantly extract all email addresses, URLs, phone numbers, IPv4/v6 addresses, and @mentions from messy text.
Line Prefix, Suffix & Auto-Numbering Tool
Bulk prepend prefixes, append suffixes, or insert sequential line numbers to multi-line text lists.
List to Delimiter & SQL IN Clause Formatter
Convert newline lists into comma-separated strings, SQL IN (...) clauses, JSON arrays, or custom delimited strings.
Random List Shuffler & Raffle Winner Picker
Truly randomize lists using cryptographic entropy or draw fair raffle giveaway winners with celebratory animations.
SEO Keyword Density & N-Gram Content Analyzer
Audit article keyword density, 1-word, 2-word, and 3-word n-gram frequencies, and detect keyword stuffing before publishing.
Unicode Text Strikethrough & Font Decorator
Generate strikethrough, underline, double-strike, slash, bubble, and small-caps text using Unicode combining diacritics.
Word Wrap & Monospace Column Width Formatter
Wrap long paragraphs at exact character boundaries (e.g. 72, 80, 120 chars) preserving word integrity for code, terminals, and emails.
Invisible Character & Zero-Width Space Purger
Reveal, highlight, and purge hidden zero-width spaces, non-breaking spaces, and malicious homoglyphs from text and code.
Duplicate Lines Remover
Instantly find and remove duplicate lines from lists or text documents with case-sensitivity and trimming options.
Text Separator Tool
Split, reformat, and separate text or lists using custom delimiters, commas, newlines, tabs, or pipes.
Email Extractor Tool
Extract all email addresses from unformatted text, raw HTML, log files, or code documents.
URL Extractor Tool
Extract all web URLs, hyperlinks, and domains from plain text, HTML pages, or markdown documents.
Text Size Calculator
Calculate exact file and memory size of text in Bytes, KB, MB, UTF-8, and UTF-16 encodings.
Emojis Remover Tool
Strip and purge all emojis, emoticons, and Unicode pictographs from text while preserving punctuation and letters.
Reverse Words Tool
Reverse the order of words in sentences, lines, or entire paragraphs while preserving character spelling.
Reverse Letters Tool
Reverse the spelling and character order of text, words, and sentences backwards.
List Randomizer Tool
Shuffle and randomize lists, names, raffle entries, and line items using cryptographic randomness.
List Alphabetizer Tool
Sort lists, names, and words alphabetically A to Z or Z to A with natural numbers sorting.
Reverse List Tool
Reverse the order of list items and lines upside-down from bottom to top.
Upside Down Text Generator
Convert normal text into upside-down inverted Unicode characters for social media, bios, and fun messages.
Old English Text Generator
Convert standard text into vintage Old English, Gothic, and Fraktur Unicode fonts.
Cursive Text Generator
Generate elegant script and cursive Unicode handwriting fonts for Instagram bios, tweets, and headings.
Number to Words Converter
Spell out numbers, currency amounts, and cheques in English words with title case options.
Morse Code Converter
Translate text to Morse code and decode Morse code back to plain text with Web Audio tone playback.
Base64 Encoder Tool
Encode UTF-8 plain text, binary strings, and files to standard RFC 4648 Base64 and URL-safe Base64.
Base64 Decoder Tool
Decode RFC 4648 Base64 and URL-Safe Base64 strings back to clean UTF-8 plain text with error correction.
Developer & Data
Format JSON, convert CSV, encode Base64 and URLs, test regex safely, generate UUIDs and hashes.
JSON Formatter and Validator
Format, validate, and minify JSON data with precise line/column syntax error detection.
CSV to JSON and JSON to CSV Converter
Convert data between CSV and JSON with support for quoted strings, custom delimiters, and Unicode.
Base64 Text Encoder and Decoder
Encode plain text to Base64 and decode Base64 back to text with full UTF-8 Unicode support.
URL Encoder and Decoder
Encode and decode URLs with clear distinction between query parameters and full URLs.
HTML Entity Encoder and Decoder
Convert special characters to safe HTML entities and decode entities back to readable text.
Regex Tester
Test regular expressions with flags, highlighted matches, capture groups, and ReDoS safety timeouts.
UUID Generator
Generate cryptographically secure Version 4 UUIDs (GUIDs) individually or in bulk.
File and Text Hash Generator
Compute cryptographic hashes (SHA-256, SHA-1, SHA-384, SHA-512, MD5) for text and local files.
HTML & CSS Minifier / Beautifier
Minify HTML and CSS code to reduce file transfer size, or beautify minified code with clean indentation.
Cron Expression Generator & Explainer
Build cron schedules with interactive dropdowns, human-readable English descriptions, and upcoming execution previews.
SQL Query Formatter & Beautifier
Format messy, unindented SQL statements into clean, structured queries with capitalized reserved keywords.
UNIX Timestamp Converter & Epoch Timer
Convert between human-readable calendar dates and UNIX epoch timestamps in seconds and milliseconds with live clock.
cURL to Fetch & Python Converter
Convert cURL command-line requests into clean JavaScript fetch, Axios, Python requests, and Node.js code snippets.
YAML to JSON & JSON to YAML Converter
Convert YAML configuration files into JSON and transform JSON data into clean, formatted YAML with syntax validation.
XPath Tester & XML Evaluator
Evaluate XPath 1.0/2.0 expressions against XML and HTML documents with matched node counts and attribute inspection.
HTML Table to Markdown Converter
Convert HTML <table> elements and copied spreadsheet tables into clean GitHub Flavored Markdown (GFM) tables.
Linux Chmod Permissions Calculator
Calculate Linux/Unix file permissions with visual checkboxes for Owner, Group, and Others with octal and symbolic modes.
Color Space Converter (HEX, RGB, HSL, CMYK)
Convert colors between HEX, RGB, RGBA, HSL, HSLA, and CMYK color spaces with live swatch and alpha opacity controls.
GraphQL Query Formatter & Minifier
Format, beautify, and minify GraphQL queries, mutations, subscriptions, and schema definitions with syntax validation.
User Agent Parser & Client Inspector
Analyze and decode any browser User-Agent string into Browser, Engine, Operating System, Device Model, and Architecture.
Cron Expression Builder, Explainer & Next Run Schedule
Build standard 5-part and 6-part cron expressions with a visual schedule picker, translate crons into plain human English, and calculate next 10 execution timestamps.
HTML Table to JSON & CSV Data Extractor
Extract structured data from raw HTML table markup or scraped web tables into clean JSON objects, arrays of objects, or downloadable CSV files.
Interactive Regular Expression Tester & Cheat Sheet
Test JavaScript RegExp patterns in real-time with live match highlighting, capture group extraction, flags selector (g, i, m, s, u), and quick-reference syntax cheat sheet.
HTTP Status Codes Reference & Diagnostic Directory
Instant search and diagnostic reference for all RFC standard HTTP response status codes (1xx, 2xx, 3xx, 4xx, 5xx) with client/server causes and fix recommendations.
File to Base64 Data URI & Binary File Reconstructor
Convert any local file (PDF, PNG, SVG, MP3, WOFF2 font) into clean Base64 Data URI strings for HTML/CSS embedding, or decode Base64 back to downloadable files.
JSON to TypeScript Interface & Type Generator
Instantly convert nested JSON payloads and API responses into clean, strictly typed TypeScript interfaces (`interface` / `type`) with optional JSDoc comments.
XML to JSON & JSON to XML Bidirectional Formatter
Convert XML feeds and SOAP payloads to modern JSON structures, or convert JSON objects into well-formed, indented XML with custom root wrappers.
UUID v4 & GUID Batch Generator (Bulk Export)
Generate cryptographically secure RFC 4122 Version 4 UUIDs & Microsoft GUIDs in bulk. Customize uppercase, lowercase, hyphens, braces `{...}`, and quote formatting.
JWT Debugger & Token Inspector
Decode JSON Web Tokens (JWT) with color-coded claims, human expiration dates, and offline HMAC signature verification.
Crontab Builder & Plain-English Explainer
Visually construct crontab schedules or translate any 5-part cron expression into plain English with next execution times.
JSON to TypeScript & Zod Generator
Instantly convert raw JSON sample data into strict TypeScript interfaces, types, and runtime Zod validation schemas.
HTML Entity Encoder & Decoder
Encode special characters to HTML entities (&, <, >) or decode entities back to readable text for safe web content embedding.
SVG to CSS Data URI & Base64 Converter
Convert raw SVG code into URL-encoded or Base64 CSS background-image data: URIs, HTML src strings, and clean React JSX components.
cURL to Python Requests & JavaScript Fetch Converter
Convert cURL terminal commands into production-ready Python (requests / httpx), JavaScript (fetch / axios), and Node.js code with headers and JSON body.
JWT Signer, Verifier & Secret Inspector
Verify JSON Web Token cryptographic signatures using Web Crypto HMAC SHA-256, inspect token claims and expiration, or generate signed JWT tokens locally.
BBCode to HTML Converter
Convert forum BBCode markup ([b], [url], [img], [quote], [code]) into semantic HTML5 code.
HTML Tags Remover Tool
Strip all HTML, XML, SVG, and script tags from rich text or web source code, leaving clean plain text.
HTML Entity Converter
Encode special characters into HTML entities (&, <, >, ') and decode entities back to plain characters.
URL Parser & Query Inspector
Deconstruct any web URL into its protocol, hostname, port, path, anchor, and query parameter key-value table.
File MIME Type & Magic Bytes Checker
Inspect file header magic numbers and bytes to identify true MIME types regardless of file extension.
JavaScript Minifier & Compressor
Minify and compress JavaScript code by removing comments, whitespace, and formatting for production deployment.
URL Decoder Tool
Decode percent-encoded URI components (%20, %2F, %3F, %26) and query strings into human-readable characters.
ASCII Converter Tool
Convert ASCII text to decimal, hex, binary, and HTML character entity codes with complete 128-character ASCII reference table.
UUID v4 Generator Tool
Generate cryptographically secure RFC 4122 Version-4 UUIDs and GUIDs individually or in bulk with uppercase and hyphen controls.
HTML Minifier & Compressor
Minify and compress HTML code by stripping comments, collapsing whitespace, and optimizing tags.
JSON Validator & Beautifier
Validate JSON syntax, detect parsing errors, and beautify with custom indentation and formatting.
SQL Formatter & Beautifier
Beautify and format messy SQL queries with uppercase keywords and clean clause indentation.
Markdown to HTML Converter
Convert Markdown to semantic HTML markup with real-time live preview and code export.
Everyday Utilities
Generate and scan QR codes, convert units across 6 categories, and calculate age and date spans.
QR Code Generator
Create high-resolution QR codes for websites, plain text, Wi-Fi logins, and contact cards.
QR Code Reader
Scan and decode QR codes from image files, drag & drop, paste from clipboard, or live camera stream.
Unit Converter
Convert measurements instantly across Length, Area, Volume, Mass, Temperature, and Digital Storage.
Date and Age Calculator
Calculate exact age, days between dates, and add or subtract days, weeks, months, or years.
Barcode Generator
Generate standard Code 128, EAN-13, and UPC-A linear barcodes directly on canvas with PNG and SVG export.
OpenGraph & Meta Tag Generator
Create and preview OpenGraph, Twitter Card, and Google Search meta tags with real-time visual social card previews.
Mock & Dummy Data Generator
Generate realistic mock test data (names, emails, phone numbers, addresses, jobs, and avatars) in JSON, CSV, or SQL formats.
Color Palette Generator & Harmonies
Generate harmonized 5-color aesthetic palettes with spacebar randomization, color locking, and HEX/RGB/HSL export.
Credit Card Validator & Luhn Checker
Validate credit card checksums using the Luhn MOD-10 algorithm, detect card issuer networks, and check formatting.
Random Choice Picker & Decision Wheel
Pick random winners, make unbiased decisions, or spin an interactive colorful decision wheel from your custom choices list.
Fake User Persona & Profile Generator
Generate comprehensive fictional user personas with realistic names, job titles, addresses, avatars, and bios for mockups.
GUID & UUID v4/v5 Generator
Generate RFC 4122 compliant random UUID v4 and namespace-based SHA-1 UUID v5 identifiers in uppercase or lowercase.
Time Zone Converter & Meeting Planner
Compare times across international cities (UTC, New York, London, Tokyo, Dubai), check business hour overlaps, and schedule meetings.
Percentage Calculator (3-in-1)
Calculate "X% of Y", "% increase or decrease between numbers", and find what percentage X is of Y with step-by-step formulas.
Exact Age & Birthday Calculator
Calculate your exact age in years, months, weeks, days, hours, and seconds, plus next birthday countdown and zodiac sign.
Fuel Cost & Road Trip Calculator
Calculate total fuel cost, required fuel volume, cost per mile/km, and passenger split for road trips and commutes.
BMI & Daily Calorie Maintenance Calculator
Calculate Body Mass Index (BMI), WHO weight category, BMR (Mifflin-St Jeor), and daily calorie requirements for weight goals.
Roman Numeral Converter & Date Encoder
Convert Roman numerals (I, V, X, L, C, D, M) to standard Arabic numbers (1 - 3,999) and convert numbers or calendar dates to Roman numerals.
Word Scramble & Jumble Puzzle Maker
Create printable word scramble puzzles and classroom jumble games with custom word lists, hints, and answer keys.
Virtual Coin Flipper & Multi-Sided Dice Roller
Flip virtual 3D coins (Heads or Tails) and roll multi-sided gaming dice (D4, D6, D8, D10, D12, D20, D100) with history tracking.
3D Coin Flipper & Multi-Dice Roller (D4, D6, D20)
Flip realistic 3D coins or roll single/multiple dice (D4, D6, D8, D10, D12, D20, D100) with roll history, probability sums, and sound effects.
Random Name Picker & Spin-the-Wheel Winner Chooser
Paste a list of names, raffle entrants, or team tasks to spin an interactive HTML5 canvas wheel with festive celebration confetti and winner removal.
Dynamic Meeting Agenda Timer & Topic Pacekeeper
Organize meeting agendas into timed discussion topics with real-time countdown progress bars, chime sound notifications, and overtime pacing alerts.
Credit Card Number & IIN / BIN Validator (Luhn Algorithm)
Verify credit card number checksum validity using the MOD-10 Luhn algorithm. Identifies card network issuer (Visa, Mastercard, Amex, Discover) completely offline.
Morse Code Audio Synthesizer & Light Flasher
Encode English text into standard International Morse Code and play it back with an authentic 700Hz sine-wave audio tone or animated visual flashlight strobe.
Password Strength & Shannon Entropy Crack Time Meter
Calculate mathematical password entropy in bits and estimate real-world crack times against supercomputers, offline GPU clusters, and online rate-limited attacks.
ISBN-10 & ISBN-13 Check Digit Validator & Converter
Validate International Standard Book Numbers (ISBN-10 and ISBN-13), calculate correct Mod-11 / Mod-10 check digits, and convert between ISBN-10 and ISBN-13 formats.
Restaurant Bill Splitter & Smart Tip Calculator
Split dining checks fairly among friends with custom tip percentages (10%, 15%, 18%, 20%), sales tax calculation, and optional per-person integer rounding.
Roman Numeral Date & Number Converter (I to MMMM)
Convert numbers and dates to Roman numerals (e.g. 2026 ➔ MMXXVI, or 12/25/2026 ➔ XII·XXV·MMXXVI) and decode ancient Roman numerals back to modern integers.
Universal Barcode Generator
Generate printable vector barcodes in Code 128, EAN-13, UPC-A, and Code 39 formats with instant SVG and high-res PNG download.
Age Calculator from Birthdate
Calculate exact age in years, months, days, hours, and minutes from any birthdate, plus next birthday countdown and day of the week born.
Days Between Dates & Event Countdown
Calculate exact days, weeks, months between any two dates and create live countdown timers for upcoming events, deadlines, and anniversaries.
Sleep Cycle & Wake Time Calculator
Calculate the ideal bedtime or wake time based on 90-minute sleep cycles to wake up feeling refreshed — avoiding mid-cycle grogginess.
Loan EMI Calculator
Calculate monthly EMI, total interest payable, and full amortization schedule for any loan — home, car, personal — with principal, rate, and tenure inputs.
Sleep Cycle & Wake Time Calculator
Calculate the ideal bedtime or wake time based on 90-minute sleep cycles to wake up feeling refreshed — avoiding mid-cycle grogginess.
Fuel Cost & Road Trip Calculator
Calculate the total fuel cost for any road trip using distance, vehicle fuel efficiency (MPG or L/100km), and current fuel price per gallon or liter.
World Time Zone Meeting Planner & Overlap Matrix
Coordinate cross-timezone calls across global cities with synchronized 24-hour visual sliders, color-coded working hour overlaps, and one-click calendar invitations.
Celsius to Fahrenheit Converter
Convert Celsius (°C) to Fahrenheit (°F) with real-time conversion and calculation formula.
Celsius to Kelvin Converter
Convert Celsius (°C) to Kelvin (K) with real-time conversion and calculation formula.
Fahrenheit to Celsius Converter
Convert Fahrenheit (°F) to Celsius (°C) with real-time conversion and calculation formula.
Fahrenheit to Kelvin Converter
Convert Fahrenheit (°F) to Kelvin (K) with real-time conversion and calculation formula.
Kelvin to Celsius Converter
Convert Kelvin (K) to Celsius (°C) with real-time conversion and calculation formula.
Kelvin to Fahrenheit Converter
Convert Kelvin (K) to Fahrenheit (°F) with real-time conversion and calculation formula.
Miles to Kilometers Converter
Convert Miles (mi) to Kilometers (km) with real-time conversion and calculation formula.
Kilometers to Miles Converter
Convert Kilometers (km) to Miles (mi) with real-time conversion and calculation formula.
MPH to KPH Speed Converter
Convert Miles per hour (mph) to Kilometers per hour (km/h) with real-time conversion and calculation formula.
KPH to MPH Speed Converter
Convert Kilometers per hour (km/h) to Miles per hour (mph) with real-time conversion and calculation formula.
Kilograms to Pounds Converter
Convert Kilograms (kg) to Pounds (lbs) with real-time conversion and calculation formula.
Pounds to Kilograms Converter
Convert Pounds (lbs) to Kilograms (kg) with real-time conversion and calculation formula.
Liters to Gallons (US) Converter
Convert Liters (L) to Gallons (US gal) with real-time conversion and calculation formula.
Gallons (US) to Liters Converter
Convert Gallons (US gal) to Liters (L) with real-time conversion and calculation formula.
Liters to Gallons (Imperial) Converter
Convert Liters (L) to Gallons (Imp gal) with real-time conversion and calculation formula.
Gallons (Imperial) to Liters Converter
Convert Gallons (Imp gal) to Liters (L) with real-time conversion and calculation formula.
Bits to Bytes Converter
Convert Bits (b) to Bytes (B) with real-time conversion and calculation formula.
Nibbles to Bytes Converter
Convert Nibbles to Bytes (B) with real-time conversion and calculation formula.
Bytes to Kilobytes Converter
Convert Bytes (B) to Kilobytes (KB) with real-time conversion and calculation formula.
Kilobits to Kilobytes Converter
Convert Kilobits (kb) to Kilobytes (KB) with real-time conversion and calculation formula.
Kibibits to Kilobytes Converter
Convert Kibibits (Kib) to Kilobytes (KB) with real-time conversion and calculation formula.
Kilobytes to Megabytes Converter
Convert Kilobytes (KB) to Megabytes (MB) with real-time conversion and calculation formula.
Seconds to Minutes Converter
Convert Seconds (s) to Minutes (min) with real-time conversion and calculation formula.
Seconds to Hours Converter
Convert Seconds (s) to Hours (hrs) with real-time conversion and calculation formula.
Seconds to Days Converter
Convert Seconds (s) to Days with real-time conversion and calculation formula.
Seconds to Weeks Converter
Convert Seconds (s) to Weeks with real-time conversion and calculation formula.
Seconds to Months Converter
Convert Seconds (s) to Months with real-time conversion and calculation formula.
Seconds to Years Converter
Convert Seconds (s) to Years with real-time conversion and calculation formula.
Minutes to Seconds Converter
Convert Minutes (min) to Seconds (s) with real-time conversion and calculation formula.
Minutes to Hours Converter
Convert Minutes (min) to Hours (hrs) with real-time conversion and calculation formula.
Minutes to Days Converter
Convert Minutes (min) to Days with real-time conversion and calculation formula.
Minutes to Weeks Converter
Convert Minutes (min) to Weeks with real-time conversion and calculation formula.
Minutes to Months Converter
Convert Minutes (min) to Months with real-time conversion and calculation formula.
Minutes to Years Converter
Convert Minutes (min) to Years with real-time conversion and calculation formula.
Hours to Seconds Converter
Convert Hours (hrs) to Seconds (s) with real-time conversion and calculation formula.
Hours to Minutes Converter
Convert Hours (hrs) to Minutes (min) with real-time conversion and calculation formula.
Hours to Days Converter
Convert Hours (hrs) to Days with real-time conversion and calculation formula.
Hours to Weeks Converter
Convert Hours (hrs) to Weeks with real-time conversion and calculation formula.
Hours to Months Converter
Convert Hours (hrs) to Months with real-time conversion and calculation formula.
Hours to Years Converter
Convert Hours (hrs) to Years with real-time conversion and calculation formula.
Days to Seconds Converter
Convert Days to Seconds (s) with real-time conversion and calculation formula.
Days to Hours Converter
Convert Days to Hours (hrs) with real-time conversion and calculation formula.
Days to Weeks Converter
Convert Days to Weeks with real-time conversion and calculation formula.
Days to Months Converter
Convert Days to Months with real-time conversion and calculation formula.
Days to Years Converter
Convert Days to Years with real-time conversion and calculation formula.
Weeks to Seconds Converter
Convert Weeks to Seconds (s) with real-time conversion and calculation formula.
Weeks to Hours Converter
Convert Weeks to Hours (hrs) with real-time conversion and calculation formula.
Weeks to Days Converter
Convert Weeks to Days with real-time conversion and calculation formula.
Weeks to Months Converter
Convert Weeks to Months with real-time conversion and calculation formula.
Weeks to Years Converter
Convert Weeks to Years with real-time conversion and calculation formula.
Months to Seconds Converter
Convert Months to Seconds (s) with real-time conversion and calculation formula.
Months to Hours Converter
Convert Months to Hours (hrs) with real-time conversion and calculation formula.
Months to Days Converter
Convert Months to Days with real-time conversion and calculation formula.
Months to Weeks Converter
Convert Months to Weeks with real-time conversion and calculation formula.
Months to Years Converter
Convert Months to Years with real-time conversion and calculation formula.
Years to Seconds Converter
Convert Years to Seconds (s) with real-time conversion and calculation formula.
Years to Hours Converter
Convert Years to Hours (hrs) with real-time conversion and calculation formula.
Years to Days Converter
Convert Years to Days with real-time conversion and calculation formula.
Years to Weeks Converter
Convert Years to Weeks with real-time conversion and calculation formula.
Years to Months Converter
Convert Years to Months with real-time conversion and calculation formula.
Number to Roman Numerals Converter
Convert standard Arabic numbers (1-3999) to classical Roman numerals (I, V, X, L, C, D, M).
Roman Numerals to Number Converter
Convert classical Roman numerals (MMXXVI, XIV, XLII) back to standard Arabic numbers.
Unix Timestamp to Date Converter
Convert Unix epoch timestamps (seconds or milliseconds) into human-readable UTC and local date formats.
Date to Unix Timestamp Converter
Convert calendar dates, ISO 8601 strings, and time into Unix epoch seconds and milliseconds.
Random Number Generator
Generate cryptographically random numbers, custom integer ranges, dice rolls, and lottery sequences.
Online Signature Generator
Draw your digital signature with custom pen strokes or type text into elegant handwriting styles, and download as transparent PNG.
CSS & Web Design
Create box shadows, glassmorphism cards, contrast checks, SVG rasterization, and organic blobs.
CSS Gradient & Glassmorphism Generator
Create gorgeous linear, radial, and conic CSS gradients and glassmorphism cards with live preview and code export.
CSS Box Shadow & Neumorphism Generator
Design multi-layer box shadows and neumorphic soft UI effects with live preview and clean CSS snippet export.
Glassmorphism & Frosted Glass Generator
Create trendy frosted-glass UI containers with customizable backdrop blur, surface transparency, and border reflections.
WCAG Color Contrast Checker
Calculate WCAG 2.1 color contrast ratios between text and background with real-time AA and AAA accessibility scoring.
SVG to High-Res PNG & JPG Converter
Convert scalable vector SVG graphics into crisp raster PNG or JPG images at 1x, 2x, 4x, or custom resolution.
Fancy Border Radius & Blob Maker
Create organic shapes, fluid blobs, and asymmetrical card corners using visual 8-point CSS border-radius sliders.
CSS Flexbox Visual Playground
Learn and test CSS Flexbox with an interactive visual playground. Adjust direction, alignment, justification, gap, and child flex properties.
CSS Grid Layout Generator
Create responsive CSS Grid layouts with visual columns, rows, fractional units (fr), gaps, and export clean CSS.
CSS Keyframe Animation Maker
Design smooth CSS @keyframes animations with easing curves, duration, delay, iteration count, and live preview box.
CSS Triangle & Shape Generator
Generate pure CSS border triangles, speech bubble pointers, and geometric arrows with custom directions and colors.
CSS Clip-Path & Polygon Maker
Create geometric shapes, circles, ellipses, triangles, stars, and polygons with interactive visual vertex handles and CSS clip-path export.
CSS Filter & Backdrop Filter Studio
Fine-tune blur, brightness, contrast, drop-shadow, grayscale, hue-rotate, invert, opacity, saturate, and sepia CSS filters with real-time preview.
CSS Text Shadow & Neon Glow Maker
Design multi-layered text shadows, retro 3D typographic effects, vintage offsets, and vibrant cyberpunk neon glows with one-click CSS export.
CSS Cubic-Bezier & Easing Curve Visualizer
Create custom CSS transition timing functions (ease-in-out, spring, bounce) by dragging Bezier control points with side-by-side animation comparison.
Frosted Glass Card & Morphism Designer
Design modern frosted-glass cards with adjustable glass tint, backdrop blur, border shine, specular highlight, and noise texture simulation.
CSS Ribbon & Corner Banner Maker
Generate corner badge ribbons, folded product ribbons, and bookmark tags using pure CSS without images or SVGs.
CSS Background Pattern & Grid Studio
Generate geometric background patterns (polka dots, diagonal stripes, carbon fiber, checkerboard, blueprints) using pure CSS radial and linear gradients.
PX to REM, EM & VW Responsive Converter
Convert pixels (px) to scalable rem, em, and viewport width (vw) units for responsive web design with interactive base font size reference table.
Custom CSS Scrollbar Designer
Design custom scrollbars with track colors, thumb gradients, hover highlights, and border radius supporting both WebKit and standard W3C CSS scrollbar properties.
Modern CSS Button & Hover Effects Studio
Design stylish call-to-action (CTA) buttons with gradient fills, subtle drop shadows, 3D press effects, ripple animations, and clean CSS component export.
Interactive CSS Clip-Path Polygon & Shape Builder
Create creative geometric CSS `clip-path` shapes (Polygons, Stars, Chevrons, Hexagons, Speech Bubbles) with draggable visual vertices and 1-click CSS copying.
CSS Cubic-Bezier Curve Easing Visualizer & Motion Simulator
Design custom CSS animation timing functions (`cubic-bezier(x1, y1, x2, y2)`). Drag bezier handles, preview realistic bouncy or ease-out box transitions in real time.
CSS Text Gradient & Background Clipping Styler
Create trendy modern gradient typography with custom linear angles, multiple color stops, and cross-browser `-webkit-background-clip: text` syntax.
Multi-Point Fluid CSS Mesh Gradient Background Designer
Generate organic, fluid, multi-point mesh gradient backgrounds combining multiple radial and linear gradients for modern hero sections and cards.
Pure CSS Triangle & Tooltip Speech Bubble Arrow Generator
Generate lightweight, pure CSS triangles and tooltip pointers using CSS border tricks. Customize direction (Up, Down, Left, Right), size, and color.
CSS Neon Glow & Multi-Layered Drop Shadow Styler
Create realistic cyberpunk neon signs, glowing buttons, and ambient drop shadows using multi-layered `text-shadow` and `box-shadow` depth rings.
Aspect Ratio Calculator & CSS aspect-ratio Helper
Calculate proportional dimensions, simplify fractional aspect ratios (16:9, 4:3, 21:9, 1:1, 9:16), and copy modern CSS `aspect-ratio` rules to prevent layout shift.
Modern UI Badge & Tag Pill Generator with Live CSS
Design status badges, category tags, notification counters, and pulsating live indicators with customizable border radiuses, soft pastel tints, and icons.
Smooth SVG Wave & Curved Section Divider Generator
Generate smooth, organic SVG wave and curved dividers to seamlessly separate webpage sections. Customize wave amplitude, frequency, complexity, and invert fill.
Pure CSS Pattern & Striped Background Generator
Generate lightweight repeating CSS background patterns: Diagonal Stripes, Polka Dots, Checkered Grids, Blueprint Grid, and Zigzag Chevron with zero image assets.
CSS Box Shadow Generator
Visually design multi-layer CSS box shadows with real-time preview, inset/outset controls, and 1-click CSS code copy.
CSS Text Shadow Generator
Craft multi-layer CSS text shadows with live typography preview, glow effects, neon text, and embossing styles.
CSS Border Radius & Squircle Generator
Visually tune all 8 border-radius corners independently to create asymmetric shapes, smooth squircles, pills, and organic blobs.
CSS clamp() Fluid Typography & Spacing Calculator
Generate responsive CSS clamp() formulas for smooth, fluid font sizes and margins that scale seamlessly between mobile and desktop viewports without media queries.
Tailwind CSS Spacing & Dimension Reference Calculator
Interactive Tailwind CSS spacing scale visualizer and calculator — convert between px, rem, Tailwind class tokens (p-4, m-6, gap-8), and viewport fractions.
Finance & Calculators
Calculate loan EMI, compound interest growth, shopping discounts, salary wages, ROI, and bill tips.
Loan EMI & Interest Calculator
Calculate monthly loan EMI, total interest payable, loan breakdown chart, and export full amortization schedule.
Compound Interest & SIP Calculator
Project future investment growth and compounding returns with regular monthly contributions and visual growth charts.
Percentage & Shopping Discount Calculator
Calculate promotional sales discounts, final checkout prices, tax amounts, and total savings in one instant view.
Hourly Wage to Annual Salary Calculator
Convert hourly pay rates into daily, weekly, bi-weekly, monthly, and annual gross earnings with overtime calculation.
ROI & Profit Margin Calculator
Calculate Return on Investment (ROI %), gross profit, net margin, and markup percentage from cost and revenue values.
Tip & Bill Split Calculator
Calculate restaurant tips, customize service percentage, round bill totals, and split costs evenly among friends.
GST & VAT Calculator
Calculate inclusive and exclusive GST / VAT tax amounts, net prices, gross totals, and custom tax slabs.
Crypto Profit & Loss Calculator
Calculate cryptocurrency investment gains, losses, ROI percentage, exit values, and exchange trading fees.
Mortgage & Amortization Calculator
Calculate home mortgage monthly payments, total interest costs, extra principal repayments, and amortization schedule.
Inflation & Purchasing Power Calculator
Calculate the erosion of purchasing power over time, future cost of goods, and equivalent historic money value.
Simple Interest & Loan Yield Calculator
Calculate simple interest (P × R × T), final maturity amount, monthly payment, and interest earned for personal loans and fixed promissory notes.
Auto Loan & Car Lease Affordability Calculator
Calculate monthly auto loan payments, trade-in equity, sales tax, total vehicle financing costs, and total interest paid over 36 to 84 months.
Retirement Nest Egg & 401(k) Planner
Plan your retirement target fund, future monthly pension income, and required monthly contributions based on age, investment returns, and inflation.
Stock Dividend Yield & DRIP Reinvestment Calculator
Calculate annual stock dividend yields, quarterly cash payouts, and project future passive income growth with Dividend Reinvestment (DRIP).
Business Break-Even Point (BEP) Calculator
Calculate the break-even sales volume in units and revenue dollars from fixed operating costs, variable cost per unit, and selling price.
Credit Card Payoff & Interest Calculator
Calculate the exact months and total interest required to become debt-free by paying more than the minimum monthly credit card payment.
Target Savings Goal & Monthly Deposit Planner
Find out exactly how much money you need to save each month to reach your financial target (emergency fund, house down payment, vacation) by a set date.
Reverse Sales Tax & VAT Calculator
Calculate original pre-tax net prices and exact tax amounts from tax-inclusive receipt totals and invoice amounts.
Asset Depreciation Calculator (Straight-Line & MACRS)
Calculate annual business asset depreciation, salvage value, and book value schedules using Straight-Line and Declining Balance methods.
Compound Annual Growth Rate (CAGR) Calculator
Calculate the true geometric annualized compound growth rate (CAGR %) of investments, portfolio assets, and business revenue over time.
Freelance Hourly Rate & Billable Hours Calculator
Calculate the true hourly billable rate needed to hit your annual income goal factoring in non-billable hours, self-employment taxes, insurance, and profit.
Personal Net Worth & Asset vs. Liability Calculator
Track your financial health by categorizing liquid assets, investments, real estate, and liabilities (mortgages, student debt) to compute net worth.
Road Trip Fuel Cost & Mileage Split Calculator
Calculate total gas cost for road trips based on distance (miles/km), vehicle fuel efficiency (MPG or L/100km), gas price, and split per passenger.
Rule of 72 & Investment Doubling Time Calculator
Determine how many years it will take to double your investment or purchasing power at any annual interest or inflation rate using the mathematical Rule of 72.
Double Discount & Sales Tax Final Price Calculator
Calculate clearance sale bargains with stacked double discounts (e.g., 30% off original price plus extra 15% VIP coupon) and local sales tax.
3-to-6 Month Emergency Fund Runway Calculator
Determine your ideal emergency financial safety net based on monthly essentials (rent, food, utilities, debt minimums) and income stability risk level.
Rent vs. Buy Home Affordability & Opportunity Cost Calculator
Compare the long-term wealth impact of buying a home (mortgage, property tax, HOA, maintenance) versus renting and investing the down payment in index funds.
Cryptocurrency & Stock Investment Profit / Loss (PnL) Calculator
Calculate net return on investment (ROI), percentage gain/loss, and total exit capital on cryptocurrency and stock trades including buying/selling exchange fees.
Annual Salary to Hourly Wage & Overtime Converter
Convert annual salary into equivalent hourly, daily, weekly, and monthly rates based on standard 40-hour workweeks or custom hours with overtime multipliers.
Historical Inflation & Future Purchasing Power Calculator
Calculate how inflation erodes cash purchasing power over time. Compare what $100 today will be worth in 10, 20, or 30 years at historical inflation rates.
Invoice Number Generator & Tracker
Generate professional sequential invoice numbers with custom prefix, suffix, padding, and auto-increment tracking saved to localStorage.
Currency Unit Converter (Offline)
Convert between 150+ world currencies using manually entered exchange rates, completely offline without API keys or rate subscriptions.
Tip & Bill Splitter Calculator
Calculate restaurant tip amounts, split bills evenly or by custom percentage among any number of people, with tax-before or tax-after options.
Stock & Crypto Average Down Cost Calculator
Calculate your new average cost per share when buying additional stock or crypto at different prices, including total investment and breakeven targets.
Debt Snowball vs Avalanche Payoff Calculator
Compare the Debt Snowball (lowest balance first) and Debt Avalanche (highest interest first) payoff methods with month-by-month debt-free timeline.
Stripe & PayPal Merchant Fee Calculator
Calculate exact payment gateway deductions, net bank payouts, and required invoice markups across Stripe, PayPal, Square, and custom merchant processors.
FIRE (Financial Independence, Retire Early) Calculator
Project your timeline to financial independence, calculate Lean, Fat, and Coast FIRE targets, and analyze the power of your savings rate.
Security & Privacy
Generate strong passwords, inspect JWTs, encrypt files with AES-GCM, analyze crack times, and verify hashes.
Strong Password Generator
Generate cryptographically secure random passwords and readable passphrases with entropy and crack-time metrics.
JWT (JSON Web Token) Decoder
Decode and inspect JSON Web Tokens locally in your browser. View formatted header, payload, and live expiration status.
Client-Side File Encryptor & Decryptor
Encrypt and password-protect any file locally in your browser using military-grade AES-GCM 256-bit encryption.
Password Strength & Crack-Time Analyzer
Inspect password entropy, detect repeated patterns and dictionary words, and estimate brute-force cracking resistance.
File Checksum & Hash Comparator
Compare two files or verify a downloaded file against an official SHA-256 or MD5 checksum to ensure software integrity.
Secure Random Token & API Key Generator
Generate cryptographically random Hex, Base64, and URL-safe API keys, auth tokens, session secrets, and salt strings.
Image Steganography (Hide Text in Image)
Hide confidential text messages inside PNG images using Least Significant Bit (LSB) pixel encoding, or extract hidden secrets.
HTTP Security Headers Builder
Build hardened HTTP security headers (CSP, HSTS, X-Frame-Options, Permissions-Policy) for Nginx, Apache, and Cloudflare.
HMAC Keyed-Hash Authenticator
Generate Hash-based Message Authentication Codes (HMAC) with secret keys using SHA-256, SHA-384, SHA-512, or SHA-1.
RSA Public & Private Key Pair Generator
Generate 2048-bit and 4096-bit RSA cryptographic key pairs in standard PKCS#8 and SPKI PEM format using the native browser Web Crypto API.
SHA-3 & Keccak-256 Cryptographic Hasher
Compute Keccak-256 (Ethereum Web3) and NIST standard SHA3-224, SHA3-256, SHA3-384, and SHA3-512 cryptographic digests for text and hex inputs.
Base58 & Base58Check Encoder / Decoder
Encode and decode binary and text strings using Bitcoin and IPFS Base58 alphabet (excluding confusing characters 0, O, I, and l).
TOTP 2FA Secret Key & Code Generator
Generate RFC 6238 Two-Factor Authentication (2FA) Base32 secret keys, otpauth:// QR URIs, and verify live 30-second 6-digit rolling OTP codes.
BIP-39 Mnemonic Seed Phrase Generator
Generate 12, 18, or 24-word cryptographically secure mnemonic seed phrases using the official BIP-39 English wordlist and Web Crypto CSPRNG.
URL & IP Defanger / Refanger for Cyber Security
Safely defang malicious URLs, domains, and IP addresses (e.g. hxxps[://]bad[.]site[.]com) to prevent accidental clicking in security reports.
CORS Misconfiguration & Policy Tester
Inspect and diagnose Cross-Origin Resource Sharing (CORS) configurations, wildcard origin vulnerabilities, and preflight headers.
JWT Debugger & Token Claims Inspector
Decode and inspect JSON Web Tokens (JWT) header, payload claims, expiration (exp), and issue time (iat) 100% locally without sending tokens over the internet.
Subresource Integrity (SRI) Hash Builder
Compute cryptographic Subresource Integrity (SRI) hashes (SHA-256, SHA-384, SHA-512) for CDN scripts and generate valid HTML <script> tags.
Sensitive Data & PII Redactor / Masker
Scan text logs and documents to detect and automatically mask sensitive PII (Social Security Numbers, Credit Cards, Email Addresses, Phone Numbers, and API Keys).
ASCII Armor & PGP Block Formatter
Format, validate, and clean PGP ASCII Armor blocks (Public Keys, Encrypted Messages, Signatures) with header diagnostics and base64 repair.
Argon2 & Scrypt Password Key Derivation Calculator
Calculate and benchmark memory-hard password hashing parameters (Argon2id, Scrypt, PBKDF2). Estimate RAM usage, iteration costs, and GPU resistance.
File Magic Bytes & True MIME Type Signature Inspector
Inspect raw binary file headers (Magic Numbers) to identify the authentic file type, detecting malicious executable files disguised as innocent JPGs or PDFs.
In-Browser Image Steganography (Hide Text in Image)
Conceal secret confidential messages and cryptographic keys inside harmless PNG images using Least Significant Bit (LSB) pixel encoding, or decode hidden text.
DNS Record Inspector & DNS-over-HTTPS (DoH) Client
Query live DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA) directly from your browser using Cloudflare / Google DNS-over-HTTPS with zero ISP interception.
HTML Entity & XSS Sanitization Security Encoder
Neutralize Cross-Site Scripting (XSS) vectors by escaping dangerous characters (brackets, quotes, and ampersands) into safe HTML entities or decimal/hex entities.
IPv4 Subnet Mask & CIDR Block Network Calculator
Calculate usable IP host ranges, network addresses, broadcast addresses, wildcard masks, and subnets from any IPv4 address and CIDR prefix (/24, /16).
Hexadecimal to ASCII, Binary, Octal & Decimal Inspector
Convert hex dumps, machine codes, and network payloads into readable ASCII text, binary byte sequences (01001000...), decimal integers, and octal representations.
Random IEEE 802 MAC Address Generator & OUI Formatter
Generate random valid MAC addresses (Media Access Control) with customizable OUI vendor prefixes (Apple, Cisco, Intel), unicast/multicast bits, and colon/hyphen formatting.
HTTP Set-Cookie Header & Security Flag Auditor
Paste an HTTP `Set-Cookie` header to audit critical cybersecurity attributes: `Secure`, `HttpOnly`, `SameSite` (Strict/Lax/None), expiration dates, and domain scope.
Base32 (RFC 4648) & Crockford Base32 Encoder / Decoder
Encode and decode standard RFC 4648 Base32 strings and Crockford Base32 human-friendly codes used in 2FA TOTP secrets, authentication tokens, and short URLs.
Password Entropy & Crack Time Estimator
Calculate true Shannon entropy bits and simulate brute-force cracking resistance across web attacks and multi-GPU cluster rigs.
TOTP / 2FA Code Generator (Offline)
Generate RFC 6238 TOTP (Time-based One-Time Password) authentication codes from any Base32 secret key — works completely offline without any app.
Content Security Policy (CSP) Header Builder
Interactively build a Content-Security-Policy HTTP header with all directives, get an instant policy string, and understand each directive's security impact.
Robots.txt File Generator
Generate a valid robots.txt file for any website — configure User-agent rules, Disallow/Allow paths, crawl delay, and sitemap URL with instant preview.
Unix chmod Permission Calculator
Calculate Unix file permissions interactively — toggle read/write/execute for owner/group/other and get the chmod numeric (e.g. 755) and symbolic output.
Robots.txt File Generator
Generate a valid robots.txt file for any website — configure User-agent rules, Disallow/Allow paths, crawl delay, and sitemap URL with instant preview.
Unix chmod Permission Calculator
Calculate Unix file permissions interactively — toggle read/write/execute for owner/group/other and get the chmod numeric (e.g. 755) and symbolic output.
Bcrypt Hash Generator & Verifier
Generate secure bcrypt password hashes ($2a$, $2b$) with custom cost salt rounds and verify passwords.
Whirlpool Hash Generator
Compute 512-bit Whirlpool cryptographic hash checksums from text strings or passwords.
SHA-3 (Keccak) Hash Generator
Generate NIST standard SHA-3 cryptographic hashes: SHA3-224, SHA3-256, SHA3-384, and SHA3-512.
MD2 Hash Generator
Compute RFC 1319 MD2 message digest hashes for text strings and binary inputs with instant HEX output.
MD4 Hash Generator
Generate 128-bit RFC 1320 MD4 cryptographic checksums with HMAC keying support and live verification.
MD5 Hash Generator
Fast 128-bit RFC 1321 MD5 hash calculator with file drag-and-drop, uppercase/lowercase formatting, and checksum validation.
SHA-1 Hash Generator
Compute FIPS PUB 180-4 SHA-1 160-bit cryptographic checksums for Git commit validation and legacy file verification.
SHA-224 Hash Generator
Calculate 224-bit FIPS PUB 180-4 SHA-224 cryptographic digests tailored for two-key Triple-DES matching security.
SHA-256 Hash Generator
Industry-standard 256-bit SHA-2 cryptographic hash calculator with instant hardware-accelerated Web Crypto execution.
SHA-384 Hash Generator
Compute 384-bit SHA-2 hashes conforming to NSA Suite B and TLS 1.3 high-assurance cryptographic standards.
SHA-512 Hash Generator
Calculate full 512-bit (128-character) SHA-2 cryptographic digests for maximum collision resistance and entropy verification.
SHA-512/224 Hash Generator
Generate FIPS 180-4 SHA-512/224 truncated hashes optimized for 64-bit architectures immune to length extension attacks.
SHA-512/256 Hash Generator
Compute FIPS 180-4 SHA-512/256 hashes providing 256-bit collision resistance with 64-bit CPU performance and anti-extension security.
SHA-3/224 Hash Generator
Compute NIST FIPS 202 SHA-3/224 sponge-construction cryptographic hashes with complete immunity to length extension.
SHA-3/256 Hash Generator
Calculate official NIST FIPS 202 SHA-3/256 Keccak cryptographic hashes with live comparison and byte inspection.
SHA-3/384 Hash Generator
Compute high-security 384-bit NIST FIPS 202 SHA-3 Keccak digests for advanced cryptographic and post-quantum protocols.
SHA-3/512 Hash Generator
Generate full 512-bit (128-character) NIST FIPS 202 SHA-3 cryptographic digests with maximum collision resistance.
Productivity & Life
Boost focus with Pomodoro timers, tally counters, millisecond stopwatches, speed reading, and habit matrices.
Pomodoro Focus Timer
Boost productivity with customized Pomodoro focus intervals, break timers, circular progress animation, and audio chimes.
Lorem Ipsum & Dummy Text Generator
Generate customizable dummy filler text by paragraphs, sentences, words, or lists with optional HTML tag wrapping.
Multi-Item Click & Tally Counter
Count events, attendance, repetitions, or inventory with multiple independent counters, keyboard shortcuts, and sound effects.
Online Precision Stopwatch & Lap Timer
High-precision millisecond stopwatch with split lap tracking, fastest/slowest lap analysis, and CSV export.
Speed Reading Trainer (RSVP)
Read long articles up to 3x faster using Rapid Serial Visual Presentation (RSVP) with adjustable Words-Per-Minute speed.
Daily Habit & Streak Matrix
Build consistency by tracking daily habits and routines with a visual monthly heatmap grid, streak counters, and local persistence.
Online Screen & Tab Recorder
Record your entire desktop screen, application window, or browser tab with audio directly in your browser without software installs.
Voice Recorder & Audio Memo
Record microphone audio memos, voice notes, and lectures with live frequency spectrum visualizer and instant audio playback.
Audio Tone & Frequency Generator
Generate pure audio tones, sound frequencies (20Hz - 20kHz), musical pitch tuning notes, and binaural sound waves.
Sticky Notes & Scratchpad Board
Create color-coded digital sticky notes, scratchpads, and quick reminders that persist automatically in your browser.
Personal Kanban Board & Task Matrix
Organize tasks with interactive drag-and-drop To-Do, In-Progress, and Completed columns, priority tags, and 100% private local storage persistence.
Morse Code Audio Ear Trainer
Learn and practice Morse code with synthesized acoustic CW beeps, flash recognition, speed controls (WPM), and multiple-choice listening tests.
Binaural Focus & Ambient Noise Generator
Generate customizable White Noise, Pink Noise, Brown Noise, and binaural Alpha brainwave frequencies for deep study, focus, and sleep.
Daily Standup & Agile Scrum Update Builder
Quickly draft clean daily standup updates (Yesterday, Today, Blockers) with custom bullet items and 1-click formatted Slack & Teams copying.
Work Hours & Time Duration Calculator
Calculate elapsed hours and minutes between start and end times, deduct unpaid lunch breaks, and compute gross earnings based on hourly wage.
Typing Speed & Accuracy Test (WPM)
Test your typing speed in real time with dynamic Words-Per-Minute (WPM), accuracy percentages, keystroke analysis, and live mistake highlighting.
Text-to-Speech & Article Voice Reader
Read any text, study notes, or PDF excerpt aloud using high-quality synthesized voices with adjustable speaking speed, pitch, and voice selectors.
Weighted Decision Matrix Analyzer
Make objective, rational choices between complex alternatives by assigning weights (1-5) to your priorities and scoring each candidate option.
Article Reading Time & Speaking Pace Calculator
Calculate exact silent reading time and spoken presentation speech duration based on word count, audience speed, and speech cadence.
Real-Time Meeting Cost Ticker & Calculator
Live running dollar clock computing the financial cost of business meetings based on attendee count and average hourly salary.
Daily Habit Streak Tracker & GitHub-Style Heatmap
Build daily habits with an interactive annual contribution heatmap. Track completion streaks, log daily notes, and save data 100% privately in your browser.
Eisenhower Matrix 4-Quadrant Task Priority Sorter
Organize your to-do backlog into the 4 classic Eisenhower productivity quadrants: Do First (Urgent & Important), Schedule, Delegate, and Eliminate.
Daily Water Intake & Hydration Requirement Calculator
Calculate your personalized daily hydration target in liters, ounces, and glasses based on body weight, daily exercise intensity, and ambient climate.
Sleep Cycle & 90-Minute REM Wakeup Calculator
Calculate optimal bedtime and wake-up times aligned with natural 90-minute REM sleep cycles to wake up feeling refreshed and avoid groggy sleep inertia.
Physical, Emotional & Intellectual Biorhythm Calculator
Chart your primary sinusoidal biological cycles (23-day Physical, 28-day Emotional, 33-day Intellectual) from birth date to forecast high-energy and critical days.
Interval Workout & Tabata / HIIT Workout Timer
High-intensity interval training (HIIT) and Tabata timer with customizable work/rest intervals, round counts, audio beeps, and high-visibility workout displays.
Exact Age, Days Lived & Milestone Countdown Calculator
Calculate your exact age down to the second, total days lived, days until your next birthday, and countdowns to unique milestones (e.g. 10,000 days alive).
In-Browser Study Flashcards & Spaced Repetition Quiz Maker
Create flip flashcard decks for languages, medical terms, and exams. Practice with interactive card flips, correct/incorrect scoring, and local deck saving.
Running Pace & Marathon Race Time Finish Calculator
Calculate running pace per kilometer or mile, project race finish times for 5K, 10K, Half Marathon, and Marathon, and compute required treadmill speeds (km/h & mph).
Multi-Event Live Countdown Clock & Milestone Ticker
Create full-screen live countdown clocks for birthdays, product launches, holidays, and retirements with ticking days/hours/minutes/seconds and celebrations.
Reading List & Progress Tracker
Track books, articles, and research papers you want to read or have completed, with progress tracking, ratings, and notes saved to localStorage.
Habit Tracker & Streak Counter
Build daily habits with a visual streak calendar, check-in system, and motivational streak count — all saved locally without account creation.
Meeting Cost & Time Calculator
Calculate the real financial cost of meetings based on attendee count, hourly salaries, and duration to quantify meeting ROI.
Daily Bullet Journal & Reflection Prompt Writer
Private, distraction-free daily reflection journal with rotating guided morning/evening prompts, mood logger, word count ticker, and instant Markdown export.
Visual Hourly Time-Blocking Day Planner
Organize your workday visually into 30-minute and 1-hour focus time blocks with color-coded categories (Deep Work, Meetings, Admin, Break) and schedule export.
Audio & Sound Tools
Trim, record, boost volume, reverse, generate frequencies, and synthesize white noise completely offline.
Audio Trimmer & Ringtone Cutter
Trim MP3, WAV, and OGG audio files with visual waveform selection, millisecond precision start/end markers, and instant local download.
High-Definition Microphone Voice Recorder
Record crystal-clear voice and microphone audio directly in your browser with real-time audio visualizer waves, pause controls, and WAV/WebM export.
Audio Speed, Tempo & Pitch Changer
Speed up or slow down audio playback from 0.25x to 3.0x with optional semitone pitch shifting without uploading your recordings.
Audio Volume Booster & Gain Normalizer
Amplify quiet audio files up to 300% gain, normalize peak amplitude to eliminate digital clipping, and download boosted audio locally.
Backwards Audio Reverse Player & Exporter
Reverse audio sample buffers to listen to sounds backward, discover hidden reverse speech, and download backwards-reversed audio files.
BPM Tap Tempo Detector & Audio Metronome
Calculate song tempo (BPM) by tapping any key in rhythm, or practice music with a high-accuracy visual and audio metronome.
Audio Frequency & Pure Tone Wave Generator
Synthesize pure Sine, Square, Triangle, and Sawtooth audio waves from 20 Hz to 20,000 Hz with live frequency sweep and volume controls.
Focus & Sleep Ambient Noise Generator
Synthesize soothing White Noise, Pink Noise, Brown Noise, and gentle rain soundscapes to mask background distractions and enhance sleep.
Stereo Audio Channel Splitter & Balance Panner
Isolate Left and Right stereo audio channels, pan sound dynamically across stereo fields, or convert stereo tracks into balanced mono.
Audio Track Joiner & Sound File Merger
Combine multiple audio recordings and sound clips into a single continuous track with custom order and gapless playback.
5-Band Graphic Audio Equalizer
Adjust sub-bass, bass, midrange, upper mids, and treble frequencies in real time with WAV export.
Audio Waveform Image Generator
Render and export high-resolution audio waveform visualizer images in PNG and SVG formats.
Universal Audio to WAV Converter
Convert any browser-supported audio format (MP3, OGG, WebM, AAC, FLAC) into standard uncompressed WAV.
Binaural Beats & Brainwave Generator
Synthesize custom binaural beat frequencies across Alpha, Beta, Theta, Delta, and Gamma states.
Morse Code Audio Synthesizer & Player
Convert English text into standard Morse code audio beeps with adjustable WPM speed, pitch, and WAV export.
Audio Bitrate & File Size Calculator
Calculate uncompressed and compressed audio file sizes, streaming bandwidth, and duration limits.
DTMF Telephone Keypad Sound Generator
Interactive touch-tone telephone dialpad synthesizing standard dual-frequency tones with sequence playback.
Audio Silence Detector & Remover
Detect silent segments in audio recordings with customizable decibel thresholds and export trimmed audio.
Mono to Stereo Spatializer & Widener
Transform mono voice and instrument tracks into rich, wide stereo using Haas delay and phase spatialization.
Audio Fade In & Fade Out Editor
Apply smooth linear, exponential, or S-curve fade-in and fade-out volume transitions to audio files.
Audio Pitch Shifter (Semitones & Cents)
Transpose music and vocal pitch up or down by precise semitones and fine cents with instant playback.
Subwoofer & Bass Frequency Sweep Tester
Test subwoofer response, bass extension, and room acoustics with pure low-frequency sine wave sweeps (15Hz–200Hz).
Hearing Frequency Range & Threshold Tester
Safely test your high-frequency and low-frequency hearing range (20Hz to 20,000Hz) with age-expected benchmarks.
Audio Delay & Echo Effect Processor
Apply studio delay and echo effects with tempo sync presets, feedback amount, and wet/dry mix controls.
Acoustic Reverb Space Simulator
Simulate natural acoustic spaces (Room, Hall, Cathedral, Plate) using synthesized algorithmic impulse responses.
White, Pink & Brown Noise Generator
Generate continuous pure acoustic noise (White, Pink, Brown, Blue) with focus timer and WAV download.
Precision BPM Tap Tempo Counter
Measure beats per minute (BPM) with high-resolution performance timers, tap variance stats, and history tracking.
Audio Peak & RMS Loudness Analyzer
Analyze audio peak levels (dBFS), true peak estimates, RMS average loudness, dynamic range, and digital clipping.
Musical Note Frequency Generator & Tuner
Look up exact scientific pitch frequencies for all notes (C0–B8) and generate pure reference tuning tones.
Seamless Audio Loop Maker & Crossfader
Create perfectly seamless repeating audio loops with boundary crossfading to eliminate pops and clicks.
Audio Cutter & Ringtone Trimmer
Visually trim and cut MP3, WAV, and OGG audio files using an interactive waveform timeline with millisecond precision and fade controls.
Audio Frequency & Tone Generator
Generate pure sine, square, sawtooth, and triangle wave tones at any frequency (1 Hz – 20 kHz) with volume control. Useful for hearing tests and audio calibration.
Live Audio Waveform Visualizer
Visualize your microphone or audio input as a real-time waveform and frequency spectrum using the browser Web Audio API — no software required.
Audio Frequency & Tone Generator
Generate pure sine, square, sawtooth, and triangle wave tones at any frequency (1 Hz – 20 kHz) with volume control. Useful for hearing tests and audio calibration.
Live Audio Waveform Visualizer
Visualize your microphone or audio input as a real-time waveform and frequency spectrum using the browser Web Audio API — no software required.
Network & Diagnostics
Detect WebRTC IP leaks, inspect client hardware, parse user-agents, test WebSockets, and check HTTP latency.
WebRTC IP Leak & Local Network Detector
Detect private LAN IP addresses, public IPv4/IPv6 addresses, and STUN candidate leaks directly through browser WebRTC.
Browser & Device Hardware Capabilities Inspector
Inspect CPU core concurrency, GPU WebGL renderer vendor, device memory RAM, display color gamut, and battery status.
User-Agent & Client Hints Parser
Parse any browser User-Agent string into browser engine, operating system, device model, CPU architecture, and Client Hints.
Interactive WebSocket Client & Echo Tester
Connect to any WebSocket or WSS server, send JSON and text payloads, view live connection states, and inspect timestamped message logs.
HTTP Ping & Network Latency Benchmark
Measure real-time HTTP fetch latency, jitter, round-trip time (RTT), and packet response speed across global CDNs.
CORS Header & Preflight Simulator
Simulate CORS preflight requests, check Access-Control headers, analyze cross-origin security rules, and generate fix instructions.
TLS/SSL Certificate Expiry & Renewal Calculator
Calculate domain SSL certificate validity periods, expiration countdowns, renewal urgency, and security grace windows.
Network Port Lookup & Protocol Reference
Search over 300+ standard TCP/UDP networking ports, services, RFC specifications, and security vulnerability recommendations.
Bandwidth & File Download Time Calculator
Calculate precise transfer times for any file size across internet speeds from dial-up and 4G to gigabit fiber connections.
WHOIS & RDAP Domain Data Formatter
Parse, beautify, and inspect raw WHOIS text records and RDAP JSON responses with structured registrar, DNS, and date fields.
IPv4 Subnet & CIDR Calculator
Calculate network address, broadcast address, netmask, usable host range, and wildcard mask from any CIDR.
IPv6 Address Compressor & Expander
Compress IPv6 addresses to standard RFC 5952 notation, expand to 32 hex digits, and generate reverse DNS.
DNS Record Formatter & Syntax Validator
Parse, validate, and format DNS record syntax for A, AAAA, CNAME, MX, TXT, SPF, DKIM, and DMARC.
MAC Address Generator & OUI Formatter
Generate randomized unicast MAC addresses and format in colon, hyphen, dot, or raw hexadecimal notation.
HTTP Status Code Search & Reference
Searchable encyclopedia of all HTTP status codes (1xx–5xx) with RFC definitions, caching rules, and debugging tips.
cURL to JavaScript Fetch & Python Converter
Convert complex cURL terminal commands into modern JavaScript fetch() and Python requests code snippets.
CIDR to IP Range & IP Aggregator
Convert CIDR blocks to start and end IP addresses, or calculate the minimal CIDR block enclosing an IP range.
IP to Binary, Hex & Decimal Converter
Convert IPv4 addresses between dotted-decimal, 32-bit binary, hexadecimal, and unsigned 32-bit integer formats.
Network MTU & MSS Overhead Calculator
Calculate TCP MSS, UDP payload limits, and header overhead for Ethernet, IPv4, IPv6, PPPoE, IPsec, and WireGuard.
Deep URL Parser & Query String Editor
Break down URLs into protocol, host, port, path, hash, and interactive query parameter editor.
Base64 Data URI Analyzer & Tester
Inspect, test, and measure byte size overhead of inline Base64 data: URIs vs standard HTTP downloads.
HTTP Security Headers Generator
Generate and validate Content-Security-Policy (CSP), HSTS, X-Frame-Options, and Permissions-Policy headers.
DNS Propagation Query Builder & Helper
Generate direct diagnostic lookup commands (dig, nslookup) and links for global resolvers across multiple countries.
VoIP Codec Packet Bandwidth Calculator
Calculate total Ethernet bandwidth consumption for VoIP calls across G.711, G.729, G.722, and Opus codecs.
Punycode & IDN Domain Name Converter
Convert Internationalized Domain Names (IDN) with accents or emojis into DNS-compatible Punycode (xn--) and back.
Public vs Private IP Address Classifier
Identify whether an IP belongs to RFC 1918 Private, Loopback, Carrier-Grade NAT (CGNAT), Link-Local, or Public space.
TCP & UDP Common Ports Directory
Search 300+ standard IANA well-known and registered port numbers by port, protocol, service, or keyword.
HAR File Analyzer & Network Log Viewer
Parse HTTP Archive (.har) files in-browser: inspect request counts, total payload transfer, status codes, and timings.
Bandwidth & Data Rate Unit Converter
Convert data rates between bits/s, Kbps, Mbps, Gbps, Bytes/s, KB/s, MB/s, and binary Kibit/Mibit units.
SSL/TLS Handshake Step-by-Step Simulator
Interactive visual simulator comparing TLS 1.2 (2-RTT) and TLS 1.3 (1-RTT / 0-RTT) handshake packet flows and latency.
WebSocket Connection Tester
Test WebSocket endpoints in real-time — connect, send custom JSON messages, and observe live server responses in a browser-native WS client.
HTTP Request Headers Inspector
View all HTTP request headers your browser sends — User-Agent, Accept-Language, Accept-Encoding, cookies, and more — in a readable formatted table.
Network Speed & Bandwidth Calculator
Convert between network speed units (Mbps, Gbps, MB/s, Kbps) and calculate exact file download/upload times at any connection speed.
CIDR Subnet & IP Range Calculator
Calculate subnet mask, usable hosts, network/broadcast addresses, and full IP range for any IPv4 CIDR notation (e.g. 192.168.1.0/24).
CIDR Subnet & IP Range Calculator
Calculate subnet mask, usable hosts, network/broadcast addresses, and full IP range for any IPv4 CIDR notation (e.g. 192.168.1.0/24).
CORS Policy Explainer & Header Builder
Understand CORS errors, build correct Access-Control-Allow-* response headers, and test cross-origin requests with a visual policy configuration UI.
IDN Punycode Converter Tool
Convert Internationalized Domain Names (IDN) with non-ASCII and Unicode characters to RFC 3492 Punycode (xn--).
DNS Lookup Tool
Query live DNS records including A, AAAA, MX, TXT, NS, CNAME, and SOA records via public DoH.
IP Lookup & Geolocation Tool
Lookup your public IP address or inspect any IPv4/IPv6 address for country, city, ISP, and ASN.
Reverse IP Lookup Tool
Find hostname and PTR reverse DNS records for any IPv4 or IPv6 address.
SSL Certificate Lookup Tool
Inspect domain SSL/TLS certificate transparency logs, issuer, expiration, and SAN domains.
WHOIS / RDAP Domain Lookup
Query official ICANN RDAP/WHOIS registry records for domain creation, expiration, registrar, and nameservers.
HTTP Headers & Security Checker
Analyze critical website HTTP security headers including HSTS, CSP, X-Frame-Options, and Referrer-Policy.
Safe URL & Phishing Checker
Analyze suspicious links and URLs for phishing indicators, malicious TLDs, IP obfuscation, and URL shorteners.
Google Cache & Archive Checker
Instantly view Google Cache, text-only cache, and Wayback Machine historical archives for any URL.
URL Redirect & Canonical Checker
Analyze URL redirect patterns, trailing-slash behavior, HTTPS canonicalization, and query parameter handling.
Password Strength & Entropy Checker
Evaluate password entropy (bits), brute-force crack time, character diversity, and security vulnerabilities.
Meta Tags & Social Preview Checker
Inspect, validate, and generate Open Graph, Twitter Cards, and SEO HTML meta tags with rich card preview.
Website Hosting & Cloud Provider Checker
Detect which cloud infrastructure or hosting provider (AWS, Cloudflare, Google Cloud, Vercel, Netlify) powers any website.
Health & Fitness Tools
Calculate BMI, BMR calories, macronutrients, hydration, running paces, 1RM strength, and sleep cycles.
BMI & Body Composition Calculator
Calculate Body Mass Index (BMI), healthy weight ranges, prime index, and Ponderal Index in metric and imperial.
BMR & TDEE Daily Calorie Calculator
Calculate Basal Metabolic Rate and Total Daily Energy Expenditure using Mifflin-St Jeor and Katch-McArdle formulas.
Macro Nutrient Split & Diet Planner
Calculate daily protein, carbohydrate, and fat gram targets for cutting, maintenance, keto, and muscle building.
Body Fat Percentage Navy Tape Calculator
Estimate body fat percentage, fat-free mass, and lean muscle mass using the U.S. Navy circumference method.
One-Rep Max (1RM) & Strength Calculator
Calculate your maximum one-rep lift across Brzycki, Epley, and Lombardi formulas with training percentage tables.
Target Heart Rate Zone & Karvonen Calculator
Calculate aerobic, anaerobic, fat-burning, and VO2 max cardiovascular training zones using the Karvonen formula.
Running Pace, Split & Finish Time Calculator
Calculate running pace per kilometer or mile, kilometer splits, and projected finish times from 5K to full marathon.
Intermittent Fasting Window & Stage Timer
Track 16:8, 18:6, and 20:4 fasting windows with real-time biological stages: ketosis, autophagy, and glycogen depletion.
Sleep Cycle & Wake-Up Time Calculator
Calculate optimal bedtime and wake-up times aligned with 90-minute REM sleep cycles to prevent morning sleep inertia.
Calorie Deficit & Target Date Planner
Calculate daily calorie deficit, weekly fat loss rate, and projected goal achievement date.
Lean Body Mass (LBM) Calculator
Calculate Lean Body Mass (LBM) and Fat-Free Mass using the clinically validated Boer, James, and Hume formulas.
Heart Rate Variability (HRV) Tracker & Guide
Interpret RMSSD Heart Rate Variability readings, assess autonomic recovery status, and log baseline trends.
Max Heart Rate & Training Zones Calculator
Calculate Maximum Heart Rate using Tanaka, Gellish, and Fox formulas with 5 cardiovascular training zones.
One-Rep Max (1RM) Strength Calculator
Calculate your One-Rep Max (1RM) using Brzycki, Epley, and Lander formulas with a 1-to-12 rep loading chart.
Pregnancy Due Date & Trimester Calculator
Calculate Estimated Due Date (EDD), current gestational age, and trimester timeline using Naegele’s rule.
Blood Alcohol Content (BAC) Calculator
Estimate Blood Alcohol Concentration (BAC) and hours to reach 0.00% sobriety using the Widmark formula.
Caffeine Intake & Half-Life Decay Tracker
Track daily caffeine intake (mg), plot 5.7-hour half-life exponential decay, and estimate bedtime residual level.
Personalized Water Intake & Sweat Calculator
Calculate personalized daily water requirements factoring in body weight, workout intensity, and temperature.
VO2 Max Rockport Walking Fitness Calculator
Estimate aerobic VO2 Max fitness score using the Rockport 1-mile walking test and finish heart rate.
Running Pace & Race Split Calculator
Calculate running pace (min/mile, min/km), finish times, and kilometer/mile splits for 5K, 10K, and Marathons.
Electrolyte & Sweat Replacement Calculator
Calculate sodium, potassium, and magnesium replenishment requirements based on sweat rate and workout duration.
Waist-to-Hip & Waist-to-Height Ratio Calculator
Calculate Waist-to-Hip Ratio (WHR) and Waist-to-Height Ratio (WHtR) with WHO cardiovascular risk categories.
Barbell Plate Loading Calculator
Visual barbell plate loading calculator for Olympic bars (45 lb / 20 kg) showing exact plates required per side.
Body Surface Area (BSA) Calculator
Calculate Body Surface Area (BSA in m²) using Mosteller, DuBois, and Haycock formulas for clinical physiology.
Intermittent Fasting Schedule & Window Planner
Plan custom daily fasting and eating windows for 16:8, 18:6, 20:4, and OMAD with circular 24-hour clock visualizer.
Daily Meal Calorie & Macro Portion Divider
Divide daily target calories, protein, carbs, and fats into balanced portions across 2, 3, 4, 5, or 6 daily meals.
Sleep Debt & Recovery Catch-Up Planner
Calculate cumulative weekly sleep debt based on personal sleep needs and generate a healthy recovery sleep plan.
20-20-20 Ergonomic Eye & Posture Break Timer
Ergonomic 20-20-20 rule and desk stretch timer with gentle audio chime reminders and guided micro-exercises.
Glycemic Load & Blood Sugar Impact Calculator
Calculate Glycemic Load (GL) from Glycemic Index (GI) and portion carbohydrates to evaluate blood sugar impact.
Ideal Body Weight Calculator
Calculate ideal body weight using 5 validated medical formulas (Robinson, Miller, Hamwi, Devine, Peterson) and view your range with BMI-based comparison.
Vitamin & Mineral Daily Reference Guide
Interactive reference for 30+ vitamins and minerals: daily recommended intake by age/sex, food sources, deficiency symptoms, and toxicity thresholds.
Social & Digital Marketing
Build UTM URLs, count social character limits, generate Open Graph meta tags, audit email subject lines, and calculate ROAS.
UTM Campaign URL Builder & Parameter Validator
Build standardized Google Analytics tracking links with utm_source, utm_medium, utm_campaign, utm_term, and utm_content parameters.
Social Media Post Character & Limit Counter
Monitor character limits, hashtag counts, and line lengths for X (Twitter), LinkedIn, Instagram, Facebook, and Threads simultaneously.
Hashtag Generator, Sorter & Tag Cleaner
Extract, deduplicate, sort, format, and generate clean hashtag lists from keywords or text paragraphs.
Open Graph & Twitter Card Meta Tag Generator
Generate SEO-compliant Open Graph (og:title, og:image) and Twitter Card tags with live social preview mockup cards.
Social Media Image Crop & Ratio Advisor
Inspect image pixel dimensions against standard social formats: Instagram Square (1:1), Portrait (4:5), Stories (9:16), and YouTube Banners (16:9).
ROAS & CAC Digital Marketing ROI Calculator
Calculate Return on Ad Spend (ROAS), Customer Acquisition Cost (CAC), Cost per Lead (CPL), and Break-Even conversion rates.
Email Subject Line & Spam Score Analyzer
Audit email subject lines for character lengths, spam trigger words, preview snippet cutoffs, and open-rate psychological triggers.
Call to Action (CTA) Generator & Tester
Generate and test compelling action-oriented CTA buttons, headline hooks, and microcopy across 8 conversion categories.
Dynamic QR Code & vCard Marketing Styler
Generate branded SVG/PNG QR codes for URLs, Wi-Fi logins, vCard digital business cards, and SMS with custom dot colors.
Ad Spend & Break-Even Profit Calculator
Determine how many sales and what conversion rate is required to break even on paid Google and Meta ad campaigns.
X (Twitter) Thread Splitter & Character Counter
Count characters against the 280-char limit, weight URLs, and automatically split long text into numbered thread posts.
Meta Title & Description Pixel Length Checker
Check title and description character length AND pixel width (desktop 960px, mobile 600px) with Google SERP preview.
Instagram Caption Line Break & Spacing Cleaner
Add clean invisible paragraph line breaks to Instagram captions and organize hashtag blocks without messy periods.
LinkedIn Post Formatter & Text Styler
Format bold, italic, and monospace Unicode text for LinkedIn posts and preview the "see more" cutoff line.
Click-Through Rate (CTR) Calculator
Calculate CTR percentage from impressions and clicks, and project required impressions for target traffic goals.
Ad Cost Calculator (CPC, CPM & CPA)
Convert and calculate between Cost Per Click (CPC), Cost Per Mille (CPM), CPA, and total advertising campaign spend.
Email Campaign Open & Bounce Rate Calculator
Calculate email deliverability rate, open rate, click-to-open rate (CTOR), and soft/hard bounce percentages.
Customer Lifetime Value (LTV / CLV) Calculator
Calculate Customer Lifetime Value (CLV / LTV) from average order value, purchase frequency, and customer churn rate.
Lead Conversion Rate & Sales Funnel Calculator
Calculate multi-stage conversion rates from Website Visitors to Leads, MQLs, SQLs, and Closed Won Deals.
A/B Test Significance & Sample Size Calculator
Calculate statistical significance (p-value, 95% confidence) and required sample sizes for A/B conversion split tests.
Robots.txt Syntax Validator & URL Tester
Validate robots.txt syntax, test crawler allow/disallow directives against URLs, and format sitemap directives.
Canonical Tag & Hreflang Tag Builder
Generate standard rel="canonical" tags, multilingual hreflang attributes, and pagination prev/next links.
Reading Time & Speech Speaking Time Calculator
Estimate silent reading time (at 200–250 WPM) and presentation speaking time (at 130–150 WPM) from text.
FAQPage JSON-LD Structured Data Schema Generator
Generate Google-compliant @type: "FAQPage" JSON-LD structured data schema with live validation and 1-click copy.
HowTo JSON-LD Structured Data Schema Generator
Generate Google-compliant @type: "HowTo" JSON-LD schema with supplies, tools, steps, and duration.
Affiliate Link Redirect & Cloaking Code Maker
Generate lightweight, SEO-safe HTML redirect files and clean URL redirects with rel="sponsored" attributes.
YouTube Title, Description & Tags Length Checker
Validate YouTube video title (100 char limit), description (5,000 chars), and comma-separated tags (500 char limit).
GA4 Engagement Rate to Bounce Rate Converter
Convert between Google Analytics 4 (GA4) Engagement Rate and classic Universal Analytics (UA) Bounce Rate.
Brand Name & Acronym Generator
Generate catchy business acronyms and brand names from your core keywords, mission words, and product themes.
Marketing Budget Allocation Calculator
Calculate optimal marketing budget distribution across SEO, PPC, Content, Social, and Email based on revenue.
Social Share (Open Graph) Live Simulator
Live pixel-accurate preview of how your website links will look when shared on Facebook, Twitter/X, LinkedIn, WhatsApp, and Slack.
Social Media Bio Generator
Generate compelling Twitter/X, LinkedIn, Instagram, and TikTok bios from keywords describing your profession, skills, and personality in seconds.
Email Subject Line Analyzer & Scorer
Score your email subject lines for open rate potential — analyzing word count, power words, spam triggers, sentiment, personalization, and emoji usage.
Social Media Bio Generator
Generate compelling Twitter/X, LinkedIn, Instagram, and TikTok bios from keywords describing your profession, skills, and personality in seconds.
WhatsApp Direct Link Generator
Generate click-to-chat WhatsApp links (wa.me) with prefilled customized messages and QR code.
PayPal Link Generator
Create instant PayPal.me payment and donation links with prefilled amounts and currency codes.
Mailto Link Generator
Generate formatted RFC 2368 mailto: links with recipient emails, CC, BCC, prefilled subject lines, and body text.
YouTube Timestamp Link Generator
Create shareable YouTube links that jump visitors directly to exact video minutes and seconds.
Gravatar Checker Tool
Check Gravatar profile avatar existence, MD5 email hash, and extract full-resolution profile images.
UTM Link Generator Tool
Build clean, trackable Google Analytics UTM campaign URLs with live link validation, parameter presets, and QR code generation.
Math, Science & Engineering
Scientific calculator, percentage differentials, sample statistics, quadratic equations, matrices, and compound interest.
Scientific & Trigonometric Calculator
Evaluate advanced mathematical expressions with trigonometry, logarithms, factorials, roots, and memory recall.
Percentage Change & Difference Calculator
Calculate percentage increase, percentage decrease, relative difference, markups, and discounts with formula breakdowns.
Standard Deviation & Descriptive Statistics Calculator
Compute sample and population standard deviation, variance, mean, median, mode, IQR, and quartiles from raw datasets.
Quadratic Equation Solver with Factoring & Roots
Solve quadratic equations ax² + bx + c = 0 with real and complex roots, discriminant analysis, and vertex coordinates.
Fraction to Decimal & Mixed Number Calculator
Add, subtract, multiply, and simplify fractions with step-by-step common denominators and mixed number conversions.
2x2 & 3x3 Matrix Determinant & Transpose Calculator
Calculate determinants, matrix transpose, trace, scalar multiplication, and inverse matrices for 2x2 and 3x3 systems.
Triangle Trigonometry & Angle Solver (Law of Sines/Cosines)
Solve any oblique or right triangle given SSS, SAS, ASA, or AAS using the Law of Sines and Law of Cosines.
Compound Interest & Long-Term Investment Calculator
Project investment growth with compounding frequencies, regular monthly contributions, and yearly schedule tables.
2D & 3D Geometry Area, Perimeter & Volume Calculator
Instant geometric calculations for circles, spheres, cylinders, cones, pyramids, and cubes with formula breakdowns.
Prime Factorization, GCD & LCM Calculator
Decompose integers into prime factor trees and find Greatest Common Divisor (GCD) and Least Common Multiple (LCM).
Mean, Median, Mode & Range Calculator
Calculate arithmetic mean, median, mode, range, variance, standard deviation, and IQR with step-by-step solutions.
Permutation & Combination (nPr & nCr) Calculator
Calculate permutations nPr, combinations nCr, factorials n!, and Pascal's triangle rows with BigInt precision.
Ratio Simplifier & Proportion Solver
Simplify ratios (A:B), solve unknown proportions (A:B = C:X), and divide totals into multi-part ratios.
Programmer's Bitwise & Radix Calculator
Convert between Binary, Hex, Octal, and Decimal with bitwise logic operators (AND, OR, XOR, NOT, bit shifts).
Circle, Cylinder & Sphere Geometry Calculator
Calculate radius, diameter, circumference, area, surface area, and volume for 2D circles, cylinders, and spheres.
Pythagorean Theorem & Right Triangle Solver
Solve a² + b² = c² to find missing legs, hypotenuse, angles (degrees/radians), perimeter, and area with canvas drawing.
Systems of Linear Equations Solver (2x2 & 3x3)
Solve systems of 2 and 3 simultaneous linear equations using Cramer's rule with step-by-step determinant solutions.
Logarithm & Natural Log (ln) Calculator
Calculate common log₁₀, natural log ln, binary log₂, and custom base log_b(x) with change-of-base identities.
Exponent, Power & Nth Root Calculator
Calculate integer, negative, and fractional powers x^y, square roots, cube roots, and general nth roots.
Slope, Line Equation & Distance Calculator
Calculate slope m, y-intercept b, line equation y = mx + b, standard form, and distance between two 2D points.
Roman Numerals Converter & Math Calculator
Convert Arabic numbers (1 to 3,999,999) to Roman numerals, decode Roman numerals, and perform Roman arithmetic.
Multi-Number GCD & LCM Calculator
Find Greatest Common Divisor (GCD/GCF) and Least Common Multiple (LCM) for 2, 3, 4, or more numbers with prime trees.
Z-Score & Standard Normal Distribution Calculator
Calculate z-scores, normal distribution percentiles P(Z < z), probability density, and visualize the bell curve.
Scientific & Engineering Notation Converter
Convert numbers between standard decimal, scientific notation (a × 10^b), engineering notation, and E-notation.
2D & 3D Vector Math (Dot & Cross Product)
Calculate 2D and 3D vector magnitudes, unit vectors, dot product a·b, cross product a×b, and angle between vectors.
Arithmetic & Geometric Sequence Calculator
Find the nth term, common difference/ratio, and sum of n terms for arithmetic and geometric progressions.
Modulo & Modular Arithmetic Calculator
Calculate A mod B, handle negative numbers, modular exponentiation (A^B mod C), and modular multiplicative inverse.
Stacked Discount & Sales Tax Calculator
Calculate compound/stacked discounts (e.g. 30% off + extra 15% off), before/after sales tax, and savings breakdown.
Matrix Multiplication & Addition Calculator
Multiply, add, subtract, and scale 2x2 and 3x3 matrices with step-by-step row-by-column cell calculation displays.
Fibonacci Sequence & Golden Ratio Generator
Generate N Fibonacci numbers with BigInt precision, test Fibonacci membership, and calculate golden ratio phi.
Quadratic & Cubic Equation Solver
Solve quadratic (ax²+bx+c=0) and cubic (ax³+bx²+cx+d=0) equations with exact real and complex roots, discriminant, and step-by-step working shown.
Statistics Calculator (Mean, Median, SD, Variance)
Compute descriptive statistics for any dataset: mean, median, mode, range, standard deviation, variance, quartiles, skewness, and kurtosis.
Prime Factorization & Factor Tree Generator
Find the complete prime factorization of any integer up to 10 trillion and generate a visual factor tree decomposition for educational use.
Matrix Calculator (Add, Multiply, Transpose, Determinant)
Perform matrix addition, subtraction, scalar multiplication, matrix multiplication, transpose, determinant, and inverse on 2×2 to 4×4 matrices.
Matrix Calculator (Add, Multiply, Transpose, Determinant)
Perform matrix addition, subtraction, scalar multiplication, matrix multiplication, transpose, determinant, and inverse on 2×2 to 4×4 matrices.
Roman Numeral Converter
Convert any integer (1–3,999,999) to Roman numerals or parse any Roman numeral string back to decimal with subtractive notation rules explained.
Octal Converter Tool
Convert between octal (base-8), decimal (base-10), binary (base-2), and hexadecimal (base-16) number systems.
Color & Palettes
Convert HEX, RGB, HSL, CMYK, audit WCAG contrast accessibility, extract image palettes, and build CSS gradients.
HEX, RGB, HSL & CMYK Universal Color Converter
Convert colors across HEX, RGB, HSL, HSV, and CMYK models with live color picker and CSS code snippets.
WCAG 2.1 Color Contrast Checker & Ratio Auditor
Audit foreground and background contrast compliance against WCAG 2.1 AA & AAA accessibility standards.
Harmonious Color Palette Generator (Triadic, Analogous, Complementary)
Generate color harmonies including complementary, analogous, triadic, split-complementary, and monochromatic schemes.
Image Color Palette Extractor & Dominant Swatch Finder
Extract dominant brand colors and cohesive 6-swatch palettes from any uploaded PNG, JPG, WebP, or SVG locally.
CSS Gradient Generator & Visual Color Stop Builder
Design multi-stop linear and radial CSS gradients with visual angle wheel, color stops, and 1-click CSS code export.
Color Blindness Simulator (Protanopia, Deuteranopia, Tritanopia)
Simulate red-green, blue-yellow, and complete color vision deficiencies on colors and images using matrix optics.
Color Shades & Tints Generator (Design System Scale)
Generate 10 lighter tints and 10 darker shades for any base color to construct consistent design system ramps.
Color Mixer & Gradient Blender
Blend two or more colors with custom percentage ratios in RGB space and inspect intermediate transition swatches.
Aesthetic Random Palette Generator & Lock Curator
Generate aesthetic 5-color palettes with individual swatch locking, spacebar regeneration, and CSS export.
Tailwind CSS 50-950 Color Palette Generator
Generate an entire 11-step Tailwind CSS color scale (50, 100, 200, ... 900, 950) from any brand color with config export.
Color Name & Named CSS Color Matcher
Find the closest named CSS color (140+ colors) and nearest standardized color name using Delta E distance.
Monochromatic Color Scheme Generator
Generate harmonious monochromatic color palettes varying strictly in lightness and saturation from a base color.
Analogous Color Palette Generator
Generate serene, harmonious analogous palettes from adjacent color wheel hues (±15°, ±30°, ±45°) with CSS export.
Triadic & Tetradic (Square/Rect) Palette Generator
Generate vibrant triadic (120°) and tetradic (90° square & rectangle) color schemes with high-contrast UI swatches.
RGB to CMYK Print Color Converter
Convert digital screen sRGB colors to CMYK (Cyan, Magenta, Yellow, Key/Black) percentages for physical print design.
HSL to HSV / HSB Color Converter & Picker
Convert and compare HSL (Hue, Saturation, Lightness) and HSV/HSB (Brightness) with visual 2D gradient sliders.
Color Temperature (Kelvin) to RGB Converter
Convert blackbody radiation color temperature in Kelvin (1,000K to 40,000K) to exact RGB and HEX codes.
Interactive CSS Mesh Gradient Generator
Create trendy, fluid multi-point CSS radial mesh gradients by dragging color points on a live interactive canvas.
Relative Luminance & Perceived Brightness Meter
Measure relative luminance (Y in CIE 1931), HSP perceived brightness, and determine optimal black vs white text.
RGBA to 8-Digit Hex (Hex8) Alpha Converter
Convert 8-digit Hex colors (#RRGGBBAA) to RGBA and opacity percentage with interactive transparency checkerboard.
Pastel Color Palette Generator & Curator
Generate soft, aesthetic pastel color schemes with muted saturation and high lightness for modern UI design.
Neon & Cyberpunk Glowing Palette Generator
Generate electric, high-vibrancy neon, synthwave, and cyberpunk color palettes with copyable CSS glow effects.
Color Inverter & Exact Complement Calculator
Invert colors (photographic negative) and calculate exact 180° complementary colors with visual contrast comparison.
SVG Icon Recolor CSS Filter Generator
Recolor black SVG icons to any target HEX color using pure CSS filter rules with zero image re-uploads.
5-Color Palette WCAG Contrast Matrix Grid
Test an entire 5-color palette in a complete cross-combination matrix for WCAG 2.1 AA and AAA compliance.
Material Design 3 (M3) Tonal Palette Builder
Generate Material You (M3) tonal palettes (Primary, Secondary, Tertiary, Surface, Error) from a single seed color.
Earth Tones & Organic Nature Palette Generator
Curate warm, organic earth tone palettes (terracotta, sage, warm clay, moss, sand) inspired by nature.
Linear, Radial & Conic Gradient Maker
Build multi-stop Linear, Radial, and Conic CSS gradients with interactive angle dials, color stops, and CSS export.
Two-Color Duotone Image Filter & Styler
Apply trendy two-color duotone effects to dropped photos using canvas pixel mapping with instant image download.
Color Palette UI Mockup Previewer
Test and preview any color palette applied live across simulated website cards, navigation bars, buttons, and text.
CIEDE2000 Color Difference (Delta E) Calculator
Calculate the perceptual color difference (Delta E / ΔE00) between two colors using the industry-standard CIE2000 formula with tolerance pass/fail checks.
HSV to HSL Color Space Converter & Visualizer
Convert and visualize colors between HSV (HSB) and HSL color models in real time with synchronized 2D color space planes and CSS code output.
Brand Color Accessibility Contrast Matrix
Generate a complete pairwise contrast ratio matrix for your brand color palette against light and dark backgrounds with instant WCAG AA/AAA ratings.
HEX to HEXA Converter
Convert HEX color values to HEXA format with real-time swatch preview and CSS snippet export.
HEX to RGB Converter
Convert HEX color values to RGB format with real-time swatch preview and CSS snippet export.
HEX to RGBA Converter
Convert HEX color values to RGBA format with real-time swatch preview and CSS snippet export.
HEX to HSV Converter
Convert HEX color values to HSV format with real-time swatch preview and CSS snippet export.
HEX to HSL Converter
Convert HEX color values to HSL format with real-time swatch preview and CSS snippet export.
HEX to HSLA Converter
Convert HEX color values to HSLA format with real-time swatch preview and CSS snippet export.
HEXA to HEX Converter
Convert HEXA color values to HEX format with real-time swatch preview and CSS snippet export.
HEXA to RGB Converter
Convert HEXA color values to RGB format with real-time swatch preview and CSS snippet export.
HEXA to RGBA Converter
Convert HEXA color values to RGBA format with real-time swatch preview and CSS snippet export.
HEXA to HSV Converter
Convert HEXA color values to HSV format with real-time swatch preview and CSS snippet export.
HEXA to HSL Converter
Convert HEXA color values to HSL format with real-time swatch preview and CSS snippet export.
HEXA to HSLA Converter
Convert HEXA color values to HSLA format with real-time swatch preview and CSS snippet export.
RGB to HEX Converter
Convert RGB color values to HEX format with real-time swatch preview and CSS snippet export.
RGB to HEXA Converter
Convert RGB color values to HEXA format with real-time swatch preview and CSS snippet export.
RGB to RGBA Converter
Convert RGB color values to RGBA format with real-time swatch preview and CSS snippet export.
RGB to HSV Converter
Convert RGB color values to HSV format with real-time swatch preview and CSS snippet export.
RGB to HSL Converter
Convert RGB color values to HSL format with real-time swatch preview and CSS snippet export.
RGB to HSLA Converter
Convert RGB color values to HSLA format with real-time swatch preview and CSS snippet export.
RGBA to HEX Converter
Convert RGBA color values to HEX format with real-time swatch preview and CSS snippet export.
RGBA to HEXA Converter
Convert RGBA color values to HEXA format with real-time swatch preview and CSS snippet export.
RGBA to RGB Converter
Convert RGBA color values to RGB format with real-time swatch preview and CSS snippet export.
RGBA to HSV Converter
Convert RGBA color values to HSV format with real-time swatch preview and CSS snippet export.
RGBA to HSL Converter
Convert RGBA color values to HSL format with real-time swatch preview and CSS snippet export.
RGBA to HSLA Converter
Convert RGBA color values to HSLA format with real-time swatch preview and CSS snippet export.
HSV to HEX Converter
Convert HSV color values to HEX format with real-time swatch preview and CSS snippet export.
HSV to HEXA Converter
Convert HSV color values to HEXA format with real-time swatch preview and CSS snippet export.
HSV to RGB Converter
Convert HSV color values to RGB format with real-time swatch preview and CSS snippet export.
HSV to RGBA Converter
Convert HSV color values to RGBA format with real-time swatch preview and CSS snippet export.
HSV to HSL Converter
Convert HSV color values to HSL format with real-time swatch preview and CSS snippet export.
HSV to HSLA Converter
Convert HSV color values to HSLA format with real-time swatch preview and CSS snippet export.
HSL to HEX Converter
Convert HSL color values to HEX format with real-time swatch preview and CSS snippet export.
HSL to HEXA Converter
Convert HSL color values to HEXA format with real-time swatch preview and CSS snippet export.
HSL to RGB Converter
Convert HSL color values to RGB format with real-time swatch preview and CSS snippet export.
HSL to RGBA Converter
Convert HSL color values to RGBA format with real-time swatch preview and CSS snippet export.
HSL to HSV Converter
Convert HSL color values to HSV format with real-time swatch preview and CSS snippet export.
HSL to HSLA Converter
Convert HSL color values to HSLA format with real-time swatch preview and CSS snippet export.
HSLA to HEX Converter
Convert HSLA color values to HEX format with real-time swatch preview and CSS snippet export.
HSLA to HEXA Converter
Convert HSLA color values to HEXA format with real-time swatch preview and CSS snippet export.
HSLA to RGB Converter
Convert HSLA color values to RGB format with real-time swatch preview and CSS snippet export.
HSLA to RGBA Converter
Convert HSLA color values to RGBA format with real-time swatch preview and CSS snippet export.
HSLA to HSV Converter
Convert HSLA color values to HSV format with real-time swatch preview and CSS snippet export.
HSLA to HSL Converter
Convert HSLA color values to HSL format with real-time swatch preview and CSS snippet export.
AI & Prompt Engineering
Master Midjourney/Flux parameters, optimize system prompts, calculate GPU VRAM requirements, visualize RAG chunking, and compare LLM API costs.
AI Prompt Optimizer & Enhancer
Transform basic instructions into high-performance prompts using CO-STAR, CRISPE, and Chain-of-Thought frameworks with automated guardrails.
LLM Token Counter & API Cost Estimator
Calculate accurate BPE token counts and compare API inference costs across GPT-4o, Claude 3.5 Sonnet, Gemini 1.5, DeepSeek, and Llama 3.
Midjourney & Flux Image Prompt Generator
Construct high-detail visual image prompts for Midjourney v6.1 and Flux.1 with lighting, lenses, aspect ratios, stylize values, and negative parameters.
System Prompt & Custom Instructions Generator
Build hardened system prompts for Custom GPTs, Claude Projects, Cursor rules, and autonomous AI agents with strict security guardrails.
GPU VRAM & Model Memory Estimator
Calculate exact GPU VRAM needed to run local LLMs (Llama 3, DeepSeek, Mistral) based on parameter count, quantization, context length, and KV cache.
RAG Text Chunking & Overlap Visualizer
Visually inspect text splitting, token chunk sizes, and sliding window overlaps for high-accuracy RAG vector database ingestion.
Prompt Hallucination Risk Auditor
Audit prompts for unverified assumptions, missing rejection boundaries, and ambiguous constraints that trigger model hallucinations.
Few-Shot Prompt & Training Formatter
Format demonstration pairs into production Few-Shot templates: OpenAI ChatML, Claude XML, Alpaca, or plain demonstration text.
LLM Temperature & Top-P Sampling Simulator
Simulate how Temperature, Top-P (nucleus), and Top-K alter next-token probability distributions, creativity, and deterministic reasoning.
AI Prompt Safety & Injection Tester
Audit inputs for prompt injection attack vectors, delimiter escapes, DAN roleplay overrides, and leaked system credentials.
LLM Function Calling & Structured Outputs Builder
Visually build strict OpenAI tools schemas, Anthropic function definitions, and Python Pydantic models for reliable structured LLM outputs.
AI Character & Persona Prompt Creator
Create deep, multi-layered roleplay personas, NPC dialogue guidelines, and brand chatbot characters with built-in dialogue simulation.
AI Text Pattern Analyzer & Humanizer
Audit text for dead-giveaway AI clichés ("delve", "testament", "tapestry"), measure sentence burstiness, and rewrite with natural human cadence.
AI Coding Prompt & Context Packager
Package messy source code, error traces, and architectural constraints into clean prompts optimized for Claude 3.5 Sonnet and GPT-4o.
Vector Similarity & Cosine Distance Calculator
Calculate Cosine Similarity, Dot Product, Euclidean (L2), and Manhattan distance between embedding vectors with visual angle display.
LLM Context Window Visualizer
Visualize token window limits and capacity across GPT-4o, Claude 3.5, Gemini 1.5, and Llama 3.
Few-Shot Example Pair Builder
Structure training examples into OpenAI JSON messages, Claude XML tags, or Markdown formatting.
Prompt Injection Security Auditor
Scan LLM prompts and user inputs for jailbreaks, prompt leaks, and delimiter collisions.
JSON Structured Output Designer
Design strict JSON Schema models for OpenAI and Anthropic structured outputs.
AI Persona System Prompt Builder
Design production-ready system prompts with personality traits, role constraints, and output rules.
LLM API Pricing Cost Matrix
Real-time token cost calculator comparing prices per 1M tokens across leading models.
RAG Markdown Semantic Chunker
Split long markdown and text documents into customizable chunks with overlap for vector databases.
Cosine Similarity Vector Calculator
Compute cosine similarity, dot product, and Euclidean distance between text or numeric vectors.
AI Prompt Version Diff Checker
Side-by-side visual diff tool specialized for LLM prompt iterations and token delta metrics.
System Prompt Token Compressor
Compress system prompts by eliminating conversational filler words while preserving instruction density.
Video & Animation
Convert MP4 to GIF, extract frames to high-res PNG, record screen and webcam, adjust aspect ratios, and strip audio 100% in browser.
MP4 Video to Animated GIF Converter & Trimmer
Trim videos and convert clips directly to high-quality animated GIFs with customizable FPS, resolution, and loop settings in-browser.
Video Frame to High-Res PNG / JPG Image Extractor
Step through video clips frame-by-frame, capture exact uncompressed high-resolution PNG/JPG stills, or batch extract image sequences.
Browser Screen & Webcam Video Studio Recorder
Record full screen, specific app windows, or browser tabs with synchronized microphone audio, webcam overlay, and instant WebM export.
Social Video Aspect Ratio Canvas Resizer & Padder
Reframe and resize videos into 9:16 (Reels/TikTok/Shorts), 1:1 (Square), 4:5 (Feeds), or 16:9 with blurred background padding.
Video Audio Remover & Clean Silent Video Creator
Strip unwanted audio tracks, background noise, or copyrighted music from video files completely in-browser without re-uploading.
SRT & WebVTT Subtitle Converter & Time Shifter
Convert seamlessly between SubRip (.srt) and WebVTT (.vtt) subtitle files, shift timestamps with millisecond accuracy, and clean cues.
Video Audio Extractor (WAV)
Extract audio tracks from MP4, WebM, or MOV videos into high-quality WAV audio completely offline.
Video Speed Adjuster (Slow Mo & Timelapse)
Adjust video playback speed from 0.25x slow motion to 4x timelapse speed in browser.
Subtitle (SRT / VTT) Editor & Sync
Time-shift subtitle cues by milliseconds to fix out-of-sync audio and convert SRT to VTT.
Video Reverse Playback Generator
Reverse short video clips to play backwards for artistic effects and social media.
Video Aspect Ratio Blur Padding
Convert 16:9 horizontal videos into 9:16 vertical reels with blurred background reflection.
Video Resolution Downscaler
Downscale 4K and 1080p videos to 720p or 480p to drastically reduce file sizes.
Video Trimmer & Clip Cutter
Trim start and end points of MP4 and WebM videos with frame-accurate preview and local re-encoding.
Video Watermark & Logo Overlay
Overlay copyright text or PNG logo watermark onto videos with custom opacity and positioning.
Green Screen & Chroma Key Video Compositor
Remove green or blue screen background from video clips and replace with custom color or backdrop image.
Video Frame-by-Frame Stepper & Inspector
Step through videos frame-by-frame (1/30s or 1/60s) with millisecond precision and full-res frame export.
Video Boomerang & Bouncing Loop Maker
Turn short video clips into bouncing forward-and-reverse Boomerang loops for social media.
Video Volume Booster & Audio Gain
Boost quiet video audio streams up to +300% gain with limiter to prevent distortion and clipping.
Video Subtitle Burn-In & Hardcoder
Permanently embed and burn SRT or WebVTT subtitle files into video frames with custom typography styling.
Video Color Filter & Grading Studio
Apply real-time color grading, contrast, brightness, saturation, and cinematic film presets to video clips.
Video Thumbnail & Cover Grabber
Scrub through any video to capture crystal-clear full-resolution thumbnail cover photos in PNG, JPG, or WebP.
Vertical Video Blurred Background Generator
Convert 16:9 horizontal videos into 9:16 vertical reels with blurred mirror background padding.
Video Playback Speed & Pitch Controller
Fine-tune video playback speed from 0.1x to 16x with pitch preservation and AB loop playback.
Video Metadata & Stream Codec Inspector
Inspect container formats, video codecs, FPS, dimensions, audio bitrates, and duration without server upload.
Gaming & Esports Tools
Convert mouse sensitivity across games, benchmark click CPS and reaction time, test keyboard NKRO ghosting, and detect monitor refresh rates.
Gaming Mouse Sensitivity & eDPI Matcher
Convert mouse sensitivity between Valorant, CS2, Overwatch 2, Apex Legends, Fortnite, and Call of Duty with exact cm/360° matching.
CPS (Clicks Per Second) Speed & Technique Tester
Benchmark your mouse clicking speed across 1s, 5s, 10s, 30s, and 60s intervals with butterfly, jitter, and drag click analytics.
Keyboard Anti-Ghosting & Key Switch Latency Tester
Interactive visual mechanical keyboard tester to verify N-Key Rollover (NKRO), detect ghosting or key chattering, and measure debounce latency.
Pro Gamer Aim & Visual Reaction Time Benchmark
Test visual reaction time (ms) and target acquisition accuracy with interactive color changes and dynamic moving aim targets.
Monitor Real-Time Refresh Rate (Hz) & FPS Frame Tester
Detect and verify your monitor's true hardware refresh rate (60Hz, 120Hz, 144Hz, 165Hz, 240Hz, 360Hz) with real-time frame pacing graphs.
Gaming FOV (Field of View) & Aspect Ratio Converter
Calculate and convert Horizontal (H-FOV), Vertical (V-FOV), and 4:3 Base FOV across 16:9, 21:9 Ultrawide, and 32:9 Super Ultrawide monitors.
Crosshair Overlay Generator
Design custom FPS crosshairs with color, thickness, gap, and dot, and export transparent PNG.
Mouse DPI to eDPI Converter
Calculate effective DPI (eDPI) and match sensitivity across CS2, Valorant, Apex, and Overwatch.
Game FOV & Focal Length Matcher
Match Horizontal and Vertical FOV angles across 16:9, 21:9 ultrawide, and 4:3 aspect ratios.
3D Spatial Audio & Surround Tester
Interactive 360-degree binaural soundstage radar to benchmark gaming headset directional positioning.
Keyboard Switch Chatter & Latency Tester
Test mechanical keyboard switches for switch chatter, key bounce, and double-press defects.
Loot Drop & RNG Probability Simulator
Calculate cumulative probabilities for gacha pulls, MMO item drops, and run simulated roll streaks.
CPS Click Speed & Jitter Test
Test your Clicks Per Second (CPS) with 1s, 5s, 10s, and 30s timers, real-time CPS graph, and jitter rank.
Aim Precision & Reflex Target Trainer
Interactive canvas target shooting grid to train mouse precision, flick reaction times, and accuracy percentages.
Reaction Time Benchmark Test
Measure your visual reaction time in milliseconds with randomized red-to-green stimulus and percentile ranking.
UFO Motion Blur & Ghosting Monitor Test
Multi-lane UFO animation test to evaluate monitor response time, pixel ghosting, overdrive overshoot, and frame skips.
Game Currency to Real Money Converter
Convert in-game currencies (Robux, V-Bucks, Valorant VP, Riot Points, Steam Wallet) to USD, EUR, GBP, CAD, and PKR.
Frame Time & FPS Pacing Stutter Analyzer
Analyze frame delivery pacing, calculate 1% and 0.1% lows, and visualize micro-stutters from benchmark logs.
Audio Frequency Hearing & Headset Range Test
Interactive 20 Hz to 20,000 Hz sine wave tone sweep to test gaming headset frequency response and human hearing limits.
Mouse Scroll Wheel & Chatter Bounce Tester
Diagnose defective gaming mice for scroll wheel jumping, inverse scrolling, double-click chatter, and debounce latency.
Gaming Crosshair Aspect Ratio Aligner
Calculate crosshair pixel stretching and thickness adjustments when switching between 4:3 Stretched, 16:10, and 16:9.
Esports Tournament Bracket Generator
Create interactive single-elimination tournament brackets (4, 8, 16, or 32 teams) with score tracking and image export.
Typing Speed (WPM) & Esports Accuracy Test
Benchmark typing speed in Words Per Minute (WPM), raw CPM, and accuracy percentage with live mistake tracking.
Gamer Tag & Esports Clan Name Generator
Generate stylish pro-gamer tags, clan name acronyms, competitive handles, and aesthetic unicode text styles.
Education & Academic Tools
Calculate semester and cumulative GPA, generate APA/MLA citations, evaluate Flesch readability, and curve exam grades 100% in-browser.
College & Semester GPA Calculator
Calculate semester, term, and cumulative GPA on 4.0 and 5.0 weighted grading scales with dynamic credit hour inputs.
APA, MLA & Chicago Citation Generator
Generate formatted bibliography references and in-text citations for books, websites, and journal articles in APA 7th, MLA 9th, and Chicago styles.
Academic Word Counter & Readability Score
Analyze academic essays and thesis drafts with word count, reading time, and Flesch-Kincaid grade level readability index.
Exam Grade Curve & Test Statistics Calculator
Apply flat-point, square root, and linear curves to test scores with instant distribution statistics and grade boundary breakdown.
Legal & Compliance
Generate customized website privacy policies, terms of service agreements, freelance invoices, and non-disclosure agreements offline.
Website Privacy Policy Generator
Generate a comprehensive, GDPR and CCPA compliant privacy policy for websites, SaaS applications, and mobile apps 100% locally.
Terms and Conditions Agreement Generator
Create tailored website terms of service and user agreements specifying liability limits, governing jurisdiction, and acceptable usage.
Freelance Service Invoice & Receipt Maker
Draft clean, professional commercial invoices with custom hourly rates, project line items, tax deductions, and printable PDF styling.
Standard Non-Disclosure Agreement (NDA) Generator
Draft legally structured mutual or unilateral non-disclosure agreements with custom governing state laws and confidentiality timeframes.
Data Science & Analytics
Clean messy CSV datasets, flatten nested JSON to tables, detect statistical outliers, and compute full dataset descriptive statistics.
CSV & Tabular Dataset Cleaner
Deduplicate rows, trim whitespace, normalize headers, remove empty cells, and standardize delimiters in raw CSV datasets.
Nested JSON to Flat CSV & Table Converter
Flatten deeply nested, hierarchical JSON arrays into rectangular CSV rows with dot-notation column headers for Excel analysis.
Z-Score & IQR Statistical Outlier Detector
Detect anomalous data points and anomalies in numerical distributions using Interquartile Range (IQR) fences and Standard Z-Scores.
Full Dataset Descriptive Statistics Calculator
Compute mean, median, mode, sample variance, standard deviation, skewness, quartiles, and summary distribution metrics.