+6k users are using AI Detection Checker now
426,481 checked in the last 30 days
Free AI Detector
Paste text and get an instant AI-generated score, per sentence. Free to use.
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AI Content Detected
- AI detected
- 0%
- Human detected
- 100%
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AI Free
- Human detected
- 100%
- AI detected
- 0%
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Who it's for
Check your own work
Students, writers and editors checking their own drafts before they hand them in. See how a draft scores, find the sentences that read flat, and fix those in your own voice with your meaning intact.
What you get
A score you can weigh
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A real check
Your text is read by the engine, every time. A few seconds, no queue, no card.
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Per sentence
Not one number for the whole document. Every sentence is scored separately, so you can see where the signal is.
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Your text stays yours
Never used for training, never sold. Sign in and your checks are saved until you delete them. Not signed in? Your text is erased within 24 hours.
Browser extension
Check everywhere you write
Select text on any page and run this check in place, no copy and paste. Same score, same report. Get the extension →
How it works
Three steps
Paste your textUp to 2,000 words. Nothing to install, nothing to sign up for, no card.
Read the whole resultWhether it's AI-generated, with every sentence scored on its own. All of it, free, 5 times a day, one at a time. We don't hold any of it back.
Pay only if you need moreUnlimited lifts the limits: documents up to 4,000 words, as many checks as you like. Cancel in one click, no login.
Methodology
What the score means
The score measures how the text is written, not how it was made. Human writing can score high and edited AI can score low, so read it as a signal on your draft rather than a verdict on it.
FAQ
Straight answers
How accurate is it?
We score how AI-generated your text is, sentence by sentence, so you see exactly where the AI signal is strongest. Paste anything and check in seconds, free.
Can you tell me which AI wrote it?
No, and neither can anyone else. Detectors measure how text is written, not where it came from. There is no record to look up. Any tool naming a specific model is guessing.
What happens to the text I paste?
It goes to our detection provider to produce your score. Sign in and your check is saved to your account and kept until you delete it, so you can return to it; check without an account and your text is erased automatically within 24 hours. Your result page keeps working, and it never shows your text to anybody but you. We never train on it, never sell it, and never put it in a URL. See Privacy.
How do I cancel?
One click, no login, nothing to write: the cancel page needs your email and your card's last 4 digits. It is also in your account and in every email we send. Cancelling is as easy as starting. That is the deal.