Claude Watermark Remover
Working with hidden characters outside Claude? Try the zero-width space remover, which shows you where each invisible character sits before you delete it, or the JSON cleaner if it is a payload that will not parse, or the Excel cell cleaner for a spreadsheet column. Full list of hidden characters: invisible Unicode characters.
What this removes
Invisible Unicode characters that survive copy and paste out of Claude:
U+200Bzero width space,U+2060word joiner,U+FEFFBOMU+00ADsoft hyphen,U+034Fcombining grapheme joiner- Tag characters
U+E0001andU+E0020–U+E007F - Private use area:
U+E000–U+F8FF, plane 15, plane 16 - Interlinear annotation marks
U+FFF9–U+FFFB
Optional passes handle em dashes, exotic spaces and curly punctuation. The report below the output box lists every codepoint it removed and how many.
What this keeps by default
Some invisible characters carry meaning. Removing them would damage your text, so they stay unless you turn on aggressive mode:
U+200Dzero width joiner — holds emoji families togetherU+200Czero width non-joiner — needed for Persian, Arabic and DevanagariU+FE0Fvariation selector 16 — keeps emoji rendering as emoji- Regional indicator pairs (flags), Hangul jamo fillers, Mongolian free variation selectors, Khmer inherent vowels, Arabic and Syriac marks
U+200E/U+200Fand complete bidirectional embedding pairs
What this cannot remove
Claude’s text watermark has two separate layers. This tool only handles the first one.
The first layer is invisible characters. Those are listed above, they can be found and deleted deterministically, and this tool shows you exactly what it took out.
The second layer is a statistical pattern carried by word choice itself. It is not a character you can delete — it is the sequence of words Claude picked. Removing it means rewriting the wording, which is a different job. This page does not rewrite your sentences, so it does not touch that layer. We show no removal score and no “percent human” number, because a browser-side tool has no way to verify one, and a number nobody can check is just decoration.
Supported input
- Text pasted straight into the box
- Uploaded files read as plain text:
.txt.md.markdown.html.htm.csv.json.log
Not supported: PDF, Word .docx, Pages and image files. Stripping metadata out of those needs a parsing library or a server, and this page is a single static file that runs in your browser. Rather than pretend otherwise, the file picker does not accept them.
Nothing you paste is uploaded. The cleaning runs in this browser tab.
How it works
Your text is read one codepoint at a time. Each character is checked against the removal sets above, and against the keep list, which runs first — a character that matters for emoji or for a complex script is never removed in default mode. Everything deleted is counted by codepoint, and the counts are printed in the report so you can check the work instead of trusting it.
FAQ
How do I remove a Claude watermark?
Paste the text into the box above and press Remove watermark. The invisible characters come out, the report tells you which ones and how many, and you copy the cleaned text in one click.
Is this Claude watermark remover free?
Yes. Free, no sign-up, no account, no usage counter and no email wall. It is a single static page with no server behind it, so there is nothing to meter.
Can I remove Claude watermarks on my phone?
Yes. The page is one column on a narrow screen, the text boxes resize to the viewport, and the report table scrolls sideways instead of pushing the layout apart.
Does it work on Claude Code output?
Yes for the invisible-character layer. Code pasted out of Claude Code carries the same zero-width and tag characters as prose, and they corrupt search, JSON and diffs — removing them is worth doing on its own.
Will this make my text undetectable by AI detectors?
No, and any page promising that is guessing. This removes invisible characters. It does not rewrite your wording, so the statistical pattern in the word choice stays. If you need that changed, you need a rewrite, which is a different tool.
Do you store what I paste?
No. There is no backend and no analytics. The cleaning happens in this tab and the text never leaves your device.
What is the difference between “remove Claude watermark” and “Claude watermark remover”?
Same job, same page. People search it both ways, along with “Claude watermark remover free”. All of it lands here: paste text, strip the invisible marks, copy the result.