— Invisible Character Revealer

Invisible Text Revealer

Quick Tips

  • This tool runs entirely in your browser - your data stays private.
  • Press Ctrl+V (Cmd+V on Mac) to quickly paste text.
  • Use the Copy button to save your result to clipboard.
  • Bookmark this page for quick access!

Detect and expose hidden zero-width and invisible Unicode characters.

Examples

Input
hello​world (with ZWSP)
Output
hello[U+200B ZERO WIDTH SPACE]world
Input
test‌text (with ZWNJ)
Output
test[U+200C ZERO WIDTH NON-JOINER]text
Input
no hidden chars
Output
No invisible characters detected
Input
look‎here (with LRM)
Output
look[U+200E LEFT-TO-RIGHT MARK]here

Frequently Asked Questions

A zero-width space (U+200B) is a Unicode character that creates a potential line-break point without adding visible space. It's legitimate for word wrapping in some languages but can cause problems when copied unintentionally into code or data.

They often come from copying text from websites, word processors, or PDFs. Some websites intentionally insert them for tracking or fingerprinting. They can also appear through character encoding conversions or buggy text processing.

Websites often contain invisible formatting characters that your code editor doesn't display but your compiler or interpreter processes. These hidden characters can cause syntax errors, string mismatches, and logic bugs that are very difficult to diagnose.

No, many have legitimate uses. Zero-width joiners control how characters combine in scripts like Arabic. Bidirectional marks help display mixed left-to-right and right-to-left text. Problems arise when they appear unexpectedly or are used deceptively.

Always scan copied text before using it in code or databases. Use text editors that can display hidden characters. Implement server-side validation that detects or strips invisible characters from user input. Our revealer helps identify issues before they cause problems.

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