See hidden characters
Detect zero-width spaces, BOM, soft hyphens, control marks, and other special characters.
FREE CLAUDE TEXT CLEANER · PRIVATE BY DEFAULT
Claude Watermark
Remover
Clean hidden Unicode characters from Claude text before you publish, share, or reuse it.
Start cleaning ↓✦Runs in your browser
Your text stays on your device. Inspect first, then choose exactly what to remove.
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PASTE · INSPECT · CLEAN
Clean your text
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0 characters · 0 special characters detected
Preview appears here
Conservative mode removes zero width spaces, BOM and soft hyphens. It preserves joiners, special spaces and dashes. Directional and control marks are reported for manual review.
No special characters detected.
Diff preview
Run the tool to review changes.
Cleaned text
Ready when you are
A PRACTICAL CLAUDE WATERMARK CLEANER
Make copied Claude text clean and readable
Claude can include invisible or unusual Unicode characters when text is copied between apps. They are hard to see, but can affect search, formatting, and downstream tools. noclau helps you find those characters and remove them with a reviewable diff.
Choose your rules
Use conservative cleanup or configure invisible characters, spaces, and dash handling yourself.
Copy a clean result
Review every change before copying text back into your document, CMS, or notes.
HOW IT WORKS
Clean Claude text in three steps
Paste your text
Bring in text from Claude or another AI assistant.
Inspect the details
See special characters and a live diff before you change anything.
Clean and copy
Apply your chosen rules, then copy the reviewed result.
CLAUDE WATERMARK REMOVER FAQ
Questions before you clean
What is a Claude watermark remover?
A Claude watermark remover cleans hidden Unicode characters that can appear when text is copied from Claude. noclau shows you what is in the text, then lets you remove selected invisible characters before you use or share it.
How do I remove a Claude watermark from text?
Paste your Claude text into the tool above, review the detected characters, choose a cleaning mode, and select Clean text. You can review the diff and copy the cleaned result immediately.
Does this Claude text cleaner work online?
Yes. It runs in your browser and does not upload your text to a server. That makes it useful for private notes, drafts, and client content.
Can this remove AI detection or prove who wrote text?
No. Unicode cleanup is not authorship detection and cannot guarantee a result with any AI detector. It only removes the specific characters you select and reports what it finds.
LEARN MORE
Guides for cleaner AI text
Review copied text with clear limits
The name Claude Watermark Remover describes a text-cleaning search intent. This utility inspects selected Unicode characters; it does not verify a proprietary watermark or establish who wrote a passage. Use the report to solve a specific formatting problem, then check the result in the place where you will publish or reuse it.
Start with an expected result
A useful cleanup begins with a concrete problem. If a product code copied from a draft fails an exact lookup, keep the original and inspect a small working copy. A hidden separator may explain the mismatch, but an ordinary trailing space or a different letter might also be responsible. Test the proposed edit against the exact value the destination expects.
For example, the constructed sequence AB[U+200B]12 represents an identifier with an actual zero-width space. Removing that mark produces AB12. By contrast, red[U+200B]car becomes redcar after deletion. If the intended result is two words, add an ordinary space manually. The cleaner applies character rules; it does not infer missing words, grammar, or the author's intended boundary.
Keep changes narrow and reviewable
Conservative mode removes zero-width spaces, BOM characters, and soft hyphens. It preserves several joiners, unusual spaces, and dashes. That is a limited starting point, not a guarantee that every removal is appropriate. Before cleaning emoji or multilingual text, compare a representative sample and check whether the final words, joining, and appearance remain correct.
Custom removal can also delete joiners, and space normalization is a separate choice. Avoid combining several changes unless you can explain each one. The diff makes edits visible, but long previews can be shortened and the report shows only the first thirty findings. Work in smaller sections when you need to review all locations. Keep the original until the destination test passes.
Finish the publishing review
Copy the generated result into your editor and repeat the operation that failed. Check the saved value as well as the preview, since an editor may apply its own transformations. If the problem returns after saving, investigate that stage of the copying path. A successful cleanup button press does not prove that a form, import, or published layout is correct.
Character cleanup is only one part of preparing a draft. Review facts, quotations, citations, and any disclosure requirements separately. The tool cannot validate a source or guarantee an AI detector outcome. Preserve required attribution. If no supported characters are detected but a difference remains, use the troubleshooting guides to investigate ordinary whitespace, normalization, rich-text structure, or destination-specific rules.