Text Watermark Remover

Text Watermark Remover is a free AI text watermark remover and detector for Claude, ChatGPT, Gemini, and Grok output. It combines Quick Clean for invisible Unicode removal with Deep Rewrite for breaking statistical watermarks.

Quick Clean scans for and deletes 34+ invisible Unicode characters entirely in your browser. Deep Rewrite uses an LLM to paraphrase your text and break the word-choice pattern behind Claude-style statistical watermarks.

Claude uses an invisible statistical watermark that subtly biases token selection. Anthropic confirmed this in August 2026 under EU AI Act transparency rules; it is not Google's SynthID.

Models released on or after August 2, 2026 watermark their output at launch. Anthropic states older models will gain support later.

No. Quick Clean only removes invisible Unicode characters. Statistical watermarks require Deep Rewrite, and even then removal is best-effort because the official detector is not public.

Yes. Quick Clean is free and unlimited, and Deep Rewrite includes free daily rewrites per device. No sign-up or payment is required.

Yes. Anthropic designed the watermark to travel with text when copied and persist through light editing, which is why deleting characters cannot remove it.

The tool is a legal text utility, but you are responsible for complying with academic integrity policies, employment agreements, platform rules, and applicable law when using the output.

Quick Clean runs entirely in your browser. Deep Rewrite sends only the pasted text to the API and never stores it, so Anthropic cannot detect either process.

No. Statistical watermark removal is probabilistic. A thorough rewrite weakens the signal, but no tool can verify complete removal because Anthropic's official detector is not public.