Scan for AI patterns anywhere you write
The GPTypo false-positive shield, now in your browser. Select text on any page, scan it against the same patterns detectors look for, and fix flagged sentences in place — without leaving Gmail, your CMS, or the form you're filling out.
Free · no account required to scan · Chrome Web Store

The extension runs on the surfaces writers actually use. On writeable fields you can Replace a flagged sentence with a suggestion in place. On read-only pages you get Copy.
Same short loop as the web scanner — scan, review, fix — without the copy-paste round trip.
The extension is free to install and use. Free runs the fast heuristic scanner (500 words a scan, 5,000 a month). Pro unlocks verified neural scoring, unlimited rewrites, and shareable proof reports — the same account works on the web and in the extension.
The extension never reads a page on its own. It only acts on text you explicitly select and scan. That text is sent to the GPTypo API for scoring and is never sold. Read the privacy policy →
GPTypo is a false-positive shield for human writers, not a tool for disguising AI text. We publish our accuracy data openly.