Claude Watermark Remover

Yes. Anthropic announced on August 11, 2026 that text from Claude models released on or after August 2, 2026 carries a statistical watermark, in every Claude product and every country, with no opt-out. It is a pattern in which words the model picks, so there is nothing to see or delete, and copying, pasting and retyping keep it. Anthropic has not released a public detector. See whether you can remove an AI watermark and what the Claude and ChatGPT watermarks mean.

The formatting that gives copied Claude text away: markdown ## headings, **bold** labels and bullet symbols, em dashes and curly quotes, plus any zero-width or no-break characters the text picked up from a web page or PDF. It leaves the watermark alone, since only changing the words weakens it, by hand or with the Humanizer. We will not promise any tool beats a watermark that nobody outside Anthropic can test.

No. Cleaning runs in your browser as you type, so your text never reaches Write It and is not stored. It is free, with no sign-up and no limit, and keeps working offline once the page has loaded. Like most websites, the page loads analytics that can see a visit, not what you typed.