AI Text Detector
Estimates the AI-likelihood of pasted text from six in-browser statistical heuristics — burstiness, lexical diversity, trigram repetition, AI-tell phrase density, sentence-start variety, and punctuation density — producing a Human / Mixed / AI-assisted verdict with a per-signal breakdown and copyable report. Heuristic only; not reliable for high-stakes or non-native-English judgment.
Best on 200+ words. Heuristic only — false positives are common on formal or non-native English.
Enter text to see the analysis.
AI Text Detector — Free Online Tool
Estimates the AI-likelihood of pasted text from six in-browser statistical heuristics — burstiness, lexical diversity, trigram repetition, AI-tell phrase density, sentence-start variety, and punctuation density — producing a Human / Mixed / AI-assisted verdict with a per-signal breakdown and copyable report. Heuristic only; not reliable for high-stakes or non-native-English judgment.
How to use the AI Text Detector
- Open the tool above — it runs entirely in your browser, so your input never leaves this page.
- Paste or type your input into the field, then press the relevant button (e.g. Encode / Decode, Generate, or Convert).
- Copy the result from the output area with the copy button orCtrl/Cmd + C.
- No signup, no upload, and no tracking — repeat as often as you need.
Frequently asked questions
Is the AI Text Detector free to use?
Yes. The AI Text Detector is completely free, with no signup, no ads inside the tool, and no hidden limits.
Does the AI Text Detector upload my data?
No. The AI Text Detector processes everything locally in your browser. Your input is never sent to a server, so it stays private even on shared devices.
Does the AI Text Detector work offline?
After the page loads, the AI Text Detector runs entirely in your browser, so it keeps working without a network connection.
Free & private — why use this AI Text Detector
The AI Text Detector runs 100% client-side in your browser. Your data is never uploaded to a server, no account is required, and the tool is completely free. It works offline once the page has loaded and is part of a growing collection of privacy-first developer utilities.