Free AI Text Detector
That Actually Works
Paste any essay, email, or story. Our detector checks it against 12 linguistic patterns from peer-reviewed research. Results in under a second — no account, no API key, no word limits.
AI Text Detector
Paste any text — instant results, no login required
Signal Breakdown tap to expand
Detect Writing From Every Major AI
Updated for 2026 — every model that's actually being used right now
Why This Detector Is Different
Most AI detectors are a rip-off. This one isn't.
Other detectors charge because they call the OpenAI API. We don't. The whole thing runs as JavaScript in your browser. Zero marginal cost = genuinely free for you. No plans, no tiers, no "you've used your 5 free checks today".
Your text never leaves your device. We can't see it. We're not storing it. If you have confidential documents — student grades, legal drafts — that matters. Most detectors send everything to a third-party server. This one doesn't.
GPTZero, Turnitin, Copyleaks — none of them catch AI romance novels or short stories. We have 6 algorithms specifically for narrative writing. They catch phrase loops, subject monotony, and semantic circularity that fiction AI can't help but produce.
Vocabulary detection is the easy part. We also check sentence burstiness, closing rituals, transition overuse, and 9 more signals — then combine them with a cluster boost. See the full methodology →
How It Works
Paste text. Hit analyze. Here's what happens between those two steps.
Minimum 30 words for reliable results. Longer texts score more accurately. No account, no file upload, no waiting.
Academic Mode and Narrative Mode run simultaneously. The engine picks the higher-confidence result. Each mode uses 6 specialized algorithms.
A score from 0–97% plus a breakdown of every signal that fired. See exactly what triggered the result, not just a number.
What AI Writing Actually Looks Like
Not bullet points — real text. See if you can tell before the score appears.
Four T1 vocab hits. Two transitions. One significance inflation.
Specific, frustrated, first-person. No AI markers.
Real Scenarios Where This Helps
A student submits an essay where every paragraph starts with "Furthermore". It ends with "In conclusion, this essay has explored...". Paste it. Score: 91%. Now you have something specific to discuss.
Detector for teachers →You used Claude to help brainstorm, then rewrote everything yourself — but some phrasing leaked in. Check your draft before submitting. Know what the detector thinks before your professor does.
Detector for students →A freelancer charges $0.12/word for "human-written" SEO content. Three of ten articles come back at 85%+. Now you have something to reference in the invoice dispute.
Detector for writers →