ToolSnippet
✅Part of Validation & Syntax Checkers

Free Zero-Width & Invisible Character Detector

Find and remove hidden zero-width spaces (ZWSP), non-breaking spaces (NBSP), and invisible Unicode characters from text.

About This Tool

The Zero-Width & Invisible Character Detector reveals hidden characters that often cause syntax errors in code, broken database queries, or unexpected string comparison bugs. It detects Zero-Width Spaces (U+200B), Zero-Width Joiners (U+200D), Byte Order Marks (U+FEFF), Soft Hyphens (U+00AD), and Non-Breaking Spaces (U+00A0).

How to Use

  1. 1Paste your text, code snippet, or database string.
  2. 2Review the highlighted badges indicating exact positions of hidden characters.
  3. 3Inspect the character count breakdown table.
  4. 4Click 'Remove All Invisible Characters' to copy a cleaned version.

Why Use ToolSnippet Zero-Width & Invisible Character Detector?

Fix mystery code syntax errors caused by copied zero-width characters.
Sanitize copy-pasted text from PDFs, formatted documents, and LLMs.
Audit string tokens and credentials for hidden trailing whitespace.
100% private in-browser detection.

Frequently Asked Questions

What are Zero-Width Spaces (ZWSP)?

A Zero-Width Space (Unicode U+200B) is an invisible character used in typesetting to indicate word boundaries without rendering a visible space.

Why do invisible characters break code?

Compilers, JSON parsers, and regex engines treat invisible Unicode control characters as invalid syntax tokens, causing errors that are impossible to spot visually.

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