Your AI text
is carrying
hidden marks.
Text copied from ChatGPT and Claude can carry characters you cannot see: zero-width spaces, odd Unicode spaces, soft hyphens. Paste it below and see exactly what is hiding in yours. Free, no signup, nothing leaves your browser.
What these characters are
AI tools generate typographically fancy text: curly quotes, narrow no-break spaces before units, em dashes, and sometimes zero-width characters that survive copy-paste. None of it is visible, but it is a fingerprint: paste it into a checker, or just a search for the characters, and the text announces where it came from. This tool shows every one it finds and hands back a clean version. Your text never leaves the page.
Hidden characters are only half the story. The other half is the writing itself: word choice and rhythm. That is the Humanizer.
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