Free AI Detector
Paste any text to see how likely it is to be flagged as AI-generated — and exactly which patterns trigger it. No signup, no limits, and your text never leaves your browser.
What this detector checks
Most AI detectors hand you a single “human or AI” verdict and hide their reasoning. This one shows the full breakdown. It analyzes your text against 40+ patterns that distinguish machine-written from human writing — including perplexity (how predictable word choices are), burstiness (variation in sentence length and rhythm), vocabulary diversity, AI-favored phrasing, and structural uniformity. Each triggered pattern is listed so you know precisely what to fix.
From detection to undetectable
Spotting the patterns is half the battle. When your text scores high, our free AI humanizer rewrites it to reduce those exact signals while preserving your meaning. For a deeper walkthrough, read our guide on how to bypass AI detection.
Frequently asked questions
Is this AI detector free?
Yes — it's completely free with no signup. The analysis runs in your browser, so there's no limit and your text never leaves your device.
How accurate is it?
It scores text against 40+ of the same linguistic and statistical patterns detectors like GPTZero and Turnitin rely on — perplexity, burstiness, vocabulary diversity, and more. No detector is perfect, so treat the score as a strong signal, not a verdict.
Does my text get stored?
No. The detector analyzes text locally in your browser. Nothing is uploaded, logged, or stored.
What's the difference between detecting and humanizing?
Detection scores your text and shows which AI patterns are present. Humanizing rewrites the text to reduce those patterns. You can humanize flagged text for free on our humanizer page.
Will passing this detector mean I pass GPTZero or Turnitin?
It strongly correlates because it measures the same signals, but each platform weights things differently. Use it to find and fix the patterns most likely to flag your text.
Humanize flagged text for free
Found AI patterns? Rewrite your text to read naturally and pass detection — no credit card required.
Get Started Free →