Anti-Slop: AI Detector & Humanizer

Free AI detector that works offline, no account needed. See which phrases sound AI-written and why, then fix them.

Anti-Slop is a free AI detector that runs in your browser. Select text on any page, or paste it into the popup, and in about a second you see how human it reads, which phrases give AI away, and why. FREE, NO ACCOUNT • A human-read score from 0 to 100 with a plain verdict • The phrases and filler words that make text read as AI-written, flagged for you • The patterns a find-and-replace misses: the same three-part rhythm in every sentence, sentences that are all one length, and canned wrap-ups • Quick clean: swaps the worst phrases for plain ones, offline • Design check: scan a page, or one part of it, to see whether its design looks AI-made, with real accessibility checks such as low contrast, overlays that block clicks and missing focus states There is no word limit, and the text you check never leaves your computer for these free features. HOW TO USE IT 1. Select text and right-click "Anti-Slop: scan selected text", or paste it into the popup. 2. Read the score, the flagged phrases and the patterns that fired. 3. Fix it with Quick clean, or with AI rewrite on a paid plan. PAID PLANS: Basic $9.99 a month, Pro $19.99 a month • AI rewrite: rewrites the text in a natural voice and keeps your meaning, facts and tone • AI fix: reviews a page's design and writes corrected CSS you can paste WHO IT'S FOR • Writers, marketers and students who want their writing to sound like them • Editors and teachers who want to see whether a text reads as AI-written • Designers and developers checking whether a page looks AI-made PRIVACY The checks run in your browser. AI rewrite and AI fix send only the text or design details you choose to our server, which uses the Anthropic API. We count anonymous usage events (like "check finished") to improve the extension; they never include your text, the page or your account. We never sell your data. Questions: contact@extensionsmarket.com