Text & Writing Utilities · Free tool
Invisible Character Detector
Find zero-width spaces, BOMs, and hidden chars breaking CSVs or passwords, then clean them instantly in your browser—free with no sign-up.
Total chars
77
Invisible found
9
Types detected
8
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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.
Embed this tool on your siteShow snippetHide
Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.
<iframe src="https://freetoolarena.com/embed/invisible-character-detector" width="100%" height="720" frameborder="0" loading="lazy" title="Invisible Character Detector" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>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.
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