Free AI Detector: Check Your Text Instantly

AI models write with fingerprints. They lean on the same formulaic transitions ("Furthermore", "Moreover", "Consequently"), pad sentences with hedging ("It is important to note that..."), and reach for formal vocabulary where a person would use a plain word. Our detector scans your text against a curated rule set of these patterns, the same rules that power our humanizer engine, and weights each hit by severity and by how densely the patterns appear per 100 words.

That density-based score becomes the AI probability you see. Because the check is pure pattern analysis, it runs instantly, works offline from any AI model, and never sends your text anywhere for processing. It also means the report is explainable: you see exactly which phrases triggered the score, not just a number.

No AI detector is definitive. Not this one, not GPTZero, not Turnitin. Every detector, statistical or model-based, produces false positives on clean human writing and false negatives on carefully edited AI text. Treat any score, anywhere, as an estimate of risk rather than proof of authorship.

What our score is good for: a fast, free first read on whether your text carries the obvious tells that commercial detectors lock onto. If it comes back flagged here, it will very likely get flagged by stricter tools too, and that is the moment to humanize it before you submit anything.