Everyday Utilities
Generate and scan QR codes, convert units across 6 categories, and calculate age and date spans.
All Everyday Utilities
Every tool runs 100% locally in your browser with zero server uploads.
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.