Invisible Unicode Character Detector

About this tool

Invisible Unicode characters break code, corrupt data, defeat string comparisons and enable filename spoofing — and you can't see any of it. This detector scans for 50+ invisible and deceptive characters: zero-width spaces and joiners, byte-order marks, non-breaking spaces, soft hyphens, bidi override controls, variation selectors and exotic space characters.

Every finding is highlighted inline with its code point, named in a summary table with positions, and Copy cleaned text strips them all (converting invisible spaces to normal spaces) in one click.

How to use it

1. Paste suspicious text — from a website, PDF, chat, or a config that "looks right but fails".
2. Findings appear instantly: a table of characters and a highlighted view.
3. Hover any highlight to see the character's name and code point.
4. Click Copy cleaned text to get a sanitized version.

Useful ways to apply it

• Debugging "identical" strings that won't compare equal.
• Cleaning text copied from PDFs or rich-text editors before it enters code.
• Detecting right-to-left override tricks in filenames (invoice_exe.txt style spoofing).
• Sanitizing user-submitted content that hides zero-width watermarks.