Text Utilities 100% Local Processing Limit: 500,000 characters

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.

Sponsor Space

1. Input Text

2. Findings & Cleaned Text

No invisible characters detected yet.
Sponsor Space

How to Use the Invisible Character & Zero-Width Space Detector

  1. 1
    Paste your text or code into the input area.
  2. 2
    View highlighted invisible characters with their exact Unicode code point and name.
  3. 3
    Click "Clean & Strip All" to remove them, or copy clean text.

Practical Example & Use Case

Common Real-World Scenario

Debugging a mysterious syntax error in JavaScript or SQL caused by a copied zero-width space (U+200B).

Technical Notes & Limitations

Browser Engine Architecture

Standard printable whitespace (spaces, tabs, newlines) can optionally be preserved or normalized.

Frequently Asked Questions

What is a zero-width space?

Unicode character U+200B has zero visual width but acts as a character byte. It frequently causes secret bugs when copying code from websites or chat apps.

Which invisible characters are detected?

U+200B (Zero-width space), U+200C (ZWNJ), U+200D (ZWJ), U+FEFF (BOM), U+00A0 (NBSP), U+2028/2029 (Line/Paragraph separators), and bidirectional overrides.

Recommended Utilities

Related Text Utilities Tools

Explore complementary browser-based utilities to streamline your workflow.

View All Text Utilities Tools →
Utility

Text Cleaner

Clean up text by removing extra spaces, trailing whitespace, empty lines, HTML tags, and tabs.

Try Tool →
Formatting

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.

Try Tool →
Data

Duplicate Line Remover

Remove duplicate lines from lists and datasets while preserving original sequence or sorting.

Try Tool →