About AI Humanizer Detector
AI Humanizer Detector makes free tools for the way people write now: often with AI help, and always with a reader on the other end. We offer an AI humanizer that turns AI drafts into natural writing without changing what they say, and an AI detector that estimates whether text was machine-generated and shows the evidence behind its score.
What we believe
- Honesty over hype. No AI detector is perfect and no humanizer can guarantee a detector result. We say so plainly, and we show our working: every detector result comes with highlighted sentences and specific signals.
- Meaning first. A humanizer that changes your facts is worse than useless. Ours is built to keep claims, numbers, names, quotations and citations exactly as written.
- Fairness. AI detectors have been shown to flag non-native English writers more often. Our detector is designed to be cautious with short and simple texts, and we publish guidance on using scores fairly.
- Privacy. We don’t store the text you paste. See our privacy policy.
How the tools work
Both tools run on a state-of-the-art large language model. The humanizer is instructed to rewrite rhythm, word choice and structure while locking the content. The detector combines the model’s sentence-level judgement with independent stylometric measurements, such as sentence-length variation (burstiness), vocabulary diversity and the density of phrases language models overuse. You can read the details in how AI detectors work.
Our editorial standards
Our guides are written and reviewed by the AI Humanizer Detector editorial team. We cite primary research and official documentation, avoid claims we can’t support, and update guides as tools and research change. If you spot an error, please tell us.
Responsible use
Our tools are for improving writing, not for breaking rules. If your school, publisher or employer restricts AI use, follow their policy and disclose AI assistance when it’s required.