How to Check if Text Was Written by AI (Free)
AI detectors estimate how likely a piece of text was machine-written. No detector is perfect, but a good one can flag the tell-tale patterns of AI writing. Here's how to check for free.
Last updated: July 2026
Estimate whether text is AI-generated with a free detector that analyses writing patterns in your browser. Honest about its limits.
Free AI content detector — estimate how likely text was written by AI, using writing-pattern analysis. Private, in-browser, no sign-up.
Step by step
- Open the free AI Content Detector.
- Paste the text (40+ words for the quick check).
- Read the AI-likelihood score and the signals behind it.
- Optionally run the deeper AI-powered analysis for a blended score.
What signals reveal AI writing?
AI text tends to have uniform sentence length (low 'burstiness'), few contractions, repetitive structure and over-used phrases like 'it's important to note' and 'plays a crucial role'. The tool scores these patterns.
Important: detectors aren't proof
Every AI detector — free or paid — produces false positives, and human writing can look 'AI-like'. Treat the score as a guide, never as sole evidence to accuse someone of cheating.
FAQ
Is it accurate?
It's a heuristic indicator, not proof. Use it as one signal alongside your own judgement.
Is my text uploaded?
The quick check runs entirely in your browser. The optional deep analysis sends text to AI models and is clearly labelled.
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