Tools

Invisible Character Finder for Hidden Unicode

Detect hidden Unicode characters like ZWSP, NBSP, and BOM.

Invisible Character Finder

Find hidden Unicode characters that can cause subtle bugs in text processing. This is useful when copy-pasted text behaves unexpectedly or fails validation.

How to use the Invisible Character Finder

  1. Paste the text to scan.
  2. Click Find.
  3. Review the detected invisible characters.

Common use cases

  • Debugging failed string comparisons.
  • Cleaning copy-pasted content from docs.
  • Identifying hidden separators in data files.
  • Validating form inputs before storage.

Tips & notes

  • Replace invisible characters with standard spaces when possible.
  • Check both input and output fields in integrations.
  • Combine with whitespace normalization for cleanup.

Related text tools

  • Unicode Character Inspector
  • Whitespace Normalizer
  • Text Noise Cleaner

FAQ

Which characters are detected?
Includes ZWSP, ZWJ, ZWNJ, NBSP, BOM, and more.
Does it remove the characters?
No. It identifies them so you can remove or replace them.
Why do invisible characters matter?
They can break parsing, matching, and copy-paste workflows.