Estimate how likely your text is AI-generated — with sentence-level detail.
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AI Detector
Check text for AI writing
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Add your text to analyze
Paste an essay, article, or email. We'll check it for AI-generated writing — no account and no upload required.
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Add 40+ words, then run Detect AI for a full breakdown.
AI-generated—%
Human & AI-refined—%
Human-written—%
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In beta — we're actively improving accuracy. Your feedback shapes what ships next.
Is the AI detector free? Do I need to sign up?
Yes, it's completely free and there's no sign-up or account required. Paste your text and run it — the AI content detector, grammar checker, summarizer, and translator all work with no login and no payment.
Is my text stored or shared?
How accurate is AI detection?
What do the categories mean?
Can I check for plagiarism and paraphrase text too?
AI Detective reports probabilities, not proof. Don't use results alone to make decisions that affect someone's grades, job, or reputation.