AI Watermark Remover for Text
Paste text and DetectMark strips the marks that can actually be stripped: hidden Unicode, clipboard artifacts, and stray spacing characters. Statistical watermarks get labeled, not faked.
- Hidden characters
- Clean: Removable
- Clipboard artifacts
- Clean: Removable
- Lookalike characters
- Unknown: Flagged, never stripped
- Statistical watermark
- Unknown: Not locally removable
- Verification
- Re-scan of the cleaned text
- Uploaded
- 0 bytes of your text
What this remover changes
Three things come out of the text, and each one comes out with a receipt: the zero-width family (U+200B, U+200C, U+200D, U+FEFF, U+2060), stray spacing characters such as U+00A0 and U+202F, and the class names and attributes a rich-text paste drags along behind it.
Every removal is listed by code point and position. The cleaned text is then scanned a second time, so the receipt reflects what actually left rather than what was requested.
Nothing is paraphrased. The wording you paste is the wording you get back.
What it does not change
A statistical watermark lives in the pattern of word choices rather than in the characters, so no tool running on your machine can find it or take it out. Anthropic put it plainly: "Nothing is added to the text and there are no hidden characters."
That is why the receipt always ends with an unchanged note for the statistical category. A cleaner that stays quiet about the thing it could not touch is telling you something false by omission.
Removing characters is not beating a classifier
Turnitin, GPTZero and Originality.ai score writing style. They do not read watermarks, and they never looked at your invisible characters in the first place. Stripping U+200B changes nothing about sentence rhythm or word choice, so it changes nothing about how those tools score a document.
FAQ
No tool can remove Anthropic's statistical watermark today, because no public detector exists to verify that the removal worked. This page removes hidden characters and clipboard fragments, and labels the statistical watermark Unknown.
No. Nothing here paraphrases or rewrites your text. It removes non-printing characters and clipboard styling that can be identified exactly, and leaves every word alone.
Unlikely. GPTZero, Originality.ai and Turnitin classify by writing style, not by hidden characters. Removing invisible Unicode changes neither the style nor a real watermark.
Any plain or rich text. A rich paste has its styling stripped and the underlying characters checked, and the clipboard fragments it carried are reported as their own category.
No. There is no login, no paid tier, and no server that receives your text.
Every check runs in your browser: how it works. The limits are written down too: what DetectMark cannot remove.