Claude Watermark Remover
Clean Claude generated text, or clear a watermark from an image you own. Two modes, one browser tab, and a straight answer about which Claude watermarks a cleaner can remove and which it cannot.
- Text and image modes
- No sign up
- No false claims
Run the Claude watermark remover
Pick what you are cleaning. Everything runs inside this browser tab. Nothing is uploaded and nothing is stored.
Nothing to hand?
Text watermark
Reading text locally...
Cleaned
This text contains Arabic, Persian or an Indic script, where the zero width non-joiner and joiner are real letters rather than noise. Removing them changes the words. Untick Invisible characters and clean again if that matters here.
What changed
| Character | Code point | Name | Count | Action |
|---|
This removed characters that were in the file. It did not remove Anthropic’s statistical watermark, which lives in token choice rather than in any character, and no character level cleaner can. Why.
The cleaner is not live yet
Claude’s watermark is not a character you can delete
Since 2 August 2026 Claude marks its text output. The mark is statistical: token choice is nudged with a secret key, so it lives in which words were picked.
Most pages selling a Claude watermark remover call it zero width spaces and delete those instead. Real characters, wrong target.
- Lives inWord choice, not bytes
- Survives copy and pasteYes
- Removed by a text cleanerNo
- Public detectorNot released yet
Two modes
Text watermark mode
Paste text from any model. The scan reports invisible Unicode characters by code point, plus the typography artefacts that give a draft away.
U+200BU+200CU+200DU+00ADU+2060U+00A0—“ ”
Will not remove Anthropic’s statistical watermark. What each character breaks
Image watermark mode
Drop a photo you own. Detection finds the mark, estimates its opacity, masks it with a feathered edge, then rebuilds the pixels underneath.
PNGJPGWebPAVIF25 MB
Will not remove C2PA content credentials. How image mode works
From the blog
All articlesDoes Claude Watermark Text? The Short Answer
Yes, since 2 August 2026. Here is what the mark is, which models carry it, what it survives, and why nothing you can see in the text is the watermark.
11 Aug 2026How to Remove the Claude Watermark, Honestly
What actually removes Claude's text watermark, what only appears to, and why the tools selling zero-width character deletion are solving a different problem.
11 Aug 2026The Invisible Characters Hiding in AI Text
Every zero-width and invisible Unicode character that turns up in AI output, its code point, what it silently breaks, and how to find them yourself.
11 Aug 2026How to Remove Em Dashes From AI Text
Why AI writing is full of em dashes, why find-and-replace produces bad prose, and the four replacements that actually work depending on what the dash was doing.
Common questions
Does Claude watermark its text?
Yes, since 2 August 2026, on models launched on or after that date. Anthropic added it to meet the EU AI Act Article 50(2) transparency code, and it applies worldwide rather than only in the EU.
Is Claude’s watermark made of invisible characters?
No. It is statistical: token selection is nudged using a secret key, so the signal lives in word choice rather than in any character you could delete. A marking made of zero width spaces would be visible in a hex editor and strippable in one regex, which is why it was not built that way.
Can any tool remove it?
Not a character level cleaner. Deleting invisible characters or swapping em dashes does not touch a statistical watermark. Heavy paraphrase, very short passages and code formatters degrade it; nothing else reliably does.
So what does the text cleaner remove?
Zero width and invisible Unicode characters, non breaking spaces, byte order marks, em dashes, smart quotes and ellipses. These break git diffs, database keys, CSV parsing and search, which is reason enough to remove them.
Does anything I paste or upload leave my browser?
No. Text stays in the textarea and images are opened with a local object URL. There is no upload request in either mode, no account and no storage.
The longer FAQ, including legality and disclosure.
Independent tool. AI Watermark Remover is not affiliated with, sponsored by, or endorsed by Anthropic PBC, and is not the Claude assistant. Use it only on content you have the right to edit, and not to evade a disclosure duty. See the Acceptable Use Policy.