Free AI Detector
Check any text for AI-generated content. We run it through three of the most widely used detectors in the industry and combine their results with our own scoring logic, so the probability you see is an aggregate rather than a single engine's guess.
Sign in for free to run a scan. Your score and flagged sentences appear here.
How the AI detector works
Paste your text
Drop in an essay, article, email, or any draft you want to check. Up to several thousand words at a time.
Run the detector
Sign in for free and run it. Your text goes to three leading detectors at once, and we aggregate the results into one score in seconds.
Review and fix
See which sentences read as AI-generated. Send anything flagged straight to the Humanizer to rewrite it.
How we score your text
Most tools lean on a single model. We take the results from three of the most widely used AI detectors in the industry and combine them with our own scoring logic, weighing each signal and the sentences they flag before we settle on a final probability. Pulling several independent reads together gives a steadier, more reliable result than trusting any one detector on its own.
Detect first, then humanize
An AI score on its own does not fix anything. The detector pairs with the Ultra Humanizer so you can act on the result immediately. Scan a draft, find the sentences that read as AI-generated, and rewrite them into natural, human-sounding writing without leaving the page. Then scan again to confirm the change before you publish or submit.
Use it as a signal, not a verdict
No AI detector is perfect. Scores can shift between tools, and genuinely human writing is sometimes flagged. Read the highlighted sentences, use your own judgment, and treat the score as one input into your review rather than the final word.
Frequently asked questions
Is the AI detector free?
Yes. The detector is free to use. You create a free account so we can keep the service fast and prevent abuse, then you can scan text whenever you need to.
How accurate is the AI detector?
We combine the results of three of the most widely used AI detectors in the industry with our own scoring logic, which gives a steadier read than any single tool. It is still a probability score, not a verdict. No detector is perfect, so review the flagged sentences yourself before acting on the result.
What does the AI score mean?
The score estimates how likely the text is to be machine-generated. A low score reads as human, a high score reads as AI-generated, and anything in between is mixed. Flagged sentences show you exactly where the AI patterns appear.
Can I rewrite text that gets flagged?
Yes. When a scan flags AI content, you can send the same text to the Humanizer with one click and rewrite it into natural, human-sounding writing, then scan it again to confirm.
Is my text stored?
Your content is processed to return a score and is not stored or used for training. Run as many checks as you need.
Flagged as AI? Humanize it for free
Rewrite AI-flagged text into natural, human writing in seconds. 1,000 free credits, no card required.
Open the Humanizer