Paste any text and instantly know if it was written by AI or a human. Perfect for educators, editors, and content teams.
3 free checks per day
Get AI probability scores in under 2 seconds
See exactly how likely text is AI-generated (0-100%)
Understand why text was flagged with explanations
Copy any text you want to analyze
Our AI analyzes patterns and style
See the AI probability score instantly
No AI detector is 100% accurate. AI Checker provides probability estimates, not definitive proof. Results should be used as one factor among many, not as the sole basis for decisions.
Human text can sometimes be flagged as AI, and edited AI text may not be detected. Learn more about limitations.