Claude, ChatGPT and Gemini now hide an invisible statistical watermark in the words they write, plus metadata in the file itself. DocWash strips the file clean and rewrites the wording so the pattern breaks. It does not use another AI to do it, so it does not swap one watermark for a new one.
PDF, DOCX, TXT, MD, PNG or JPG. Scanned PDFs and images are read with OCR.
Your file is processed in your browser. It is never uploaded to a server.
Preview below. Names, numbers, dates, prices, links and emails are protected and left untouched. Always read the clean copy before you use it: a rewrite strong enough to break a statistical pattern can shift tone, and names of products or technical terms may need a quick check.
One document, one payment. Pay by card through Stripe. After payment you return here and your download unlocks for this exact document.
Your clean file is rebuilt from scratch, so it carries none of the original file metadata or edit history.
DOCX and PDF files carry creator data, edit history and, for AI tools, signed C2PA provenance. Your clean file is built fresh, so none of it carries over.
Zero-width spaces and other hidden Unicode characters ride along when text is copied. DocWash scans for them and strips every one, and fixes lookalike foreign letters hidden inside English words.
The hard layer. It lives in word choice itself, so deleting characters does nothing. DocWash rewrites the wording with deterministic dictionary lookups, changing the word patterns a detector measures. Published research shows changing about a quarter of the words collapses detection, and DocWash targets well past that.
Most humanizer tools rewrite your text with ChatGPT, Claude or Gemini. If that model watermarks its output, you have traded one mark for another. DocWash uses pure dictionary lookups with no language model sampling, the one method that cannot embed a new watermark. That is also why your document never leaves your device.
No one outside the AI companies can run their official detectors, they are private. So no tool, including this one, can guarantee a result against a specific detector. What can be measured is shown to you above: how many invisible characters were removed and what share of the original word patterns are gone. Short documents under about 200 words carry very little watermark signal in the first place.
$2.99 per document. Up to about 8,000 words per document. The scan and the preview are free. You only pay when you want the full clean file. No subscription, no word credits that expire.
Use DocWash on documents you own or have the right to edit. It is built for writers, freelancers, marketers and professionals cleaning their own drafts.