This checker measures how much your writing leans on the words and rhythms that machine text leans on. It will not tell you who wrote something, because nothing can. What it will do is show you every flagged habit, explain why it was flagged, and leave the rewriting to you. Free, no sign-up, and your words never leave your browser.
Worried your writing sounds like a robot, or that it'll get falsely flagged as AI? Paste it below. We show you exactly what reads as machine-written and help you fix it, in seconds, without your words ever leaving your device.
Make it genuinely yours, fix the habits, learn the swaps, own every sentence. (And disclose where your school or employer requires it.)
Detectors wrongly flag real people constantly, especially non-native English writers. See what could get you flagged, and strengthen it before anyone else runs the scan.
of essays by non-native English speakers were falsely flagged as AI in a peer-reviewed Stanford study. If English is your second language, detectors are biased against you by design.
universities, including MIT, Yale, NYU, UC Berkeley and Vanderbilt, have banned or restricted AI detectors after auditing their false-accusation rates. Lawsuits from wrongly accused students have begun.
was all of the AI text OpenAI's own detector could catch, so OpenAI shut it down. The companies building the models couldn't build a reliable detector for them.
"Humanizer" tools are now specifically detected: major platforms ship bypasser-detection that flags paraphraser fingerprints, laundered text increasingly scores worse than the original. The evasion arms race is a trap.
What actually protects you, whichever door you came through, is the same thing: writing with genuine, specific, varied voice. Detectors key on predictable words and flat rhythm; good writing has neither. That's why Deslop coaches instead of laundering: the fix that improves your writing is the only "fix" that lasts.
Most sites in this category won't show you this table. That's exactly why we do.
AI-flavored writing habits, 46 tell words and 36 phrases, counted per 1,000 words against published benchmarks (AI copy 222, Lincoln 3.7, Darwin 0).
Robotic rhythm, flat sentence lengths, visualized.
Hidden characters, zero-width marks, disguised spaces, and look-alike foreign letters that ride along in copy-pasted AI text. Found, counted, cleanable in one tap.
The basics, spelling against a 164,000-word dictionary that accepts both British and American forms, so "organised" and "organized" are both fine, doubled words, classic slips. Names and technical terms are skipped rather than guessed at.
Statistical watermarks, including Claude's new one. They live in secret word-choice patterns readable only with the AI company's key. No public key exists yet. Any site claiming otherwise is guessing.
Authorship, no tool on Earth can honestly say "87% AI-written." Detectors that try have failed students in court. We will never print a fake percentage.
Official watermark check, Anthropic has promised public detection tools for Claude's mark. The day they ship, we add a checker powered by the keyholder's own tool, with its limits printed beside every result.
Voice Profile, score drafts against your own writing style, not just generic English. The opposite of a humanizer.
More free tools, jargon finder next.