Text & Writing Utilities · Free tool
Invisible Character Detector
Find zero-width spaces, BOMs, and other invisible characters that break CSVs, slugs, and passwords. Highlight or strip them.
Updated April 2026
Total chars
77
Invisible found
9
Types detected
8
Breakdown
U+200B Zero-width space2
U+200C Zero-width non-joiner1
U+200D Zero-width joiner1
U+FEFF BOM / ZWNBSP1
U+00A0 Non-breaking space1
U+2028 Line separator1
U+2029 Paragraph separator1
U+00AD Soft hyphen1
U+180E Mongolian vowel separator0
U+2060 Word joiner0
U+202A-E Bidi formatting0
Highlighted Text
HelloU+200B worldU+00A0— thisU+200C textU+FEFF containsU+200D hiddenU+2028charactersU+2029thatU+00ADmayU+200Bbreak things.
What it does
Find zero-width spaces, byte-order marks, non-breaking spaces, and other invisible Unicode characters that quietly break CSV imports, URL slugs, passwords, and code diffs. The detector highlights every invisible character in place with its Unicode codepoint, and offers a one-click strip.
If the issue is mixed character forms rather than hidden characters, run Unicode text normalizer. For general cleanup see whitespace remover or special character remover.
How to use it
- Paste the suspicious text.
- Scan the highlighted codepoints above the textarea.
- Click Strip to remove them, or Replace to swap for a visible substitute.
- Copy the cleaned text.