AI Detector 360
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Free AI Detector

A free AI detector that doesn't oversell

Paste up to 5,000 characters and get an instant AI-likelihood estimate with an honest confidence level. No account, no email, no credit card — and no pretend certainty.

  • ✓5,000 characters per scan
  • ✓5 free scans daily
  • ✓No sign-up required
  • ✓Confidence levels included
0/5,000 characters · free · no sign-up

What's actually free (the fine print, upfront)

The scanner above runs our built-in statistical engine: sentence rhythm, phrasing patterns, structural uniformity and more. It's fast, private and genuinely free — anonymous scans aren't even stored.

A free account (also $0, forever) adds the full pipeline: commercial ML classifiers blended with the statistical engine, sentence-level heatmaps, image checks with provenance inspection, PDF reports, and 300 credits refreshed monthly. Paid plans only matter when you need volume.

Free tiers compared honestly

Every AI detector has a free tier designed to convert you. Here's how ours stacks up: most free tools cap between 1,200 words (QuillBot, Scribbr) and ~15,000 characters (ZeroGPT) per scan. Ours is 5,000 characters anonymous or ~3,000 words monthly with a free account — and unlike most, we show confidence levels at every tier instead of reserving honesty for paying customers.

Frequently asked questions

Is it really free?

Yes — the scanner is free without an account (5,000 characters, 5 scans/day), and free accounts get 300 credits monthly forever. Paid plans exist only for higher volume and start at $9.99/month.

Why is the free scan "built-in engine only"?

Commercial classifier APIs cost money per scan, so anonymous scans use our zero-cost statistical engine. It is a solid first estimate — and clearly labeled with a confidence level. Account scans blend multiple engines for higher reliability.

Do you save the text I paste?

Anonymous free scans are not stored — we log only the score for quality monitoring. Account scans are saved privately to your history and deletable at any time.

How does this compare with other free detectors?

Comparable or better limits than most (QuillBot and Scribbr cap free scans at 1,200 words; Sapling at 2,000 characters), plus something rare in free tools: explicit confidence levels and short-text warnings instead of a bare percentage.

Guides & research

Start detecting in under a minute

Free account includes 300 credits every month — enough for ~3,000 words of checks. No credit card.

Create free account