AI Text Detector
Paste text. Find out if AI or human wrote it. No login. Free forever.
What Is AI Text Detector?
Human write different from robot. Human make mistake. Human use short sentence. Then long one. Human say “ugh” and “actually”. Robot write smooth. Too smooth. Same length every sentence. No personality. No real thought.
This tool find the robot. It look at your text and check two things — perplexity (how surprising each word is) and burstiness (how much sentence length changes). Human text = high burstiness. AI text = low burstiness. Flat. Predictable. Robot.
Useful for teachers checking student work. Useful for editors checking freelancer articles. Useful for Google — because Google say it want human content. AI content risk penalty. Know before you publish. Smart move.
No login. No credit card. No limit. Paste. Click. Done. Works on ChatGPT text, Gemini text, Claude text, any AI text. Caveman approve.
Why Detect AI Content?
Google want original human content. AI content = risk. Teachers want real student work. AI content = cheating. Clients want human writers. AI content = low value. Detection = protection. Know what you have before it hurts you.