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Our first release. Paste text, add a link or upload a document to see if AI wrote it.
Check essays, papers, PDFs and links for AI writing. Get an instant percent.
Paste a paragraph. Get a straight answer: did a person write this, or did AI? AI Detector checks text, web pages, and documents, then tells you how likely it is that a machine wrote them. You get a percentage, not a vague hunch. THREE WAYS TO CHECK Paste text from your clipboard. Drop in a link to an article. Or upload a PDF or Word file. Same answer either way, in one tap. A NUMBER, NOT JUST A LABEL Every check gives you an AI probability and the human probability beside it, plus the word count it was based on. Borderline cases look borderline instead of being forced into a yes or no, so you can make the call yourself. YOUR CHECKS STAY PUT Results are saved to your library with the excerpt they came from. Search it, filter it, open something again next month. Nothing vanishes when you close the app. WHAT YOU CAN CHECK • Pasted or typed text, 40 to 40,000 characters • Any public web page. Paste the URL and we pull the text out • PDF and Word documents, up to 20 MB • Plain text and Markdown files WHAT COMES BACK • A clear human or AI result • AI probability, as a percentage • Human probability alongside it • Word count for the text analysed • A saved report you can reopen any time HOW YOUR FILES ARE HANDLED Uploaded files are read, then let go. The file itself is never written to storage. Only the filename, the type, and the text pulled out of it are kept in your report. No photos, no camera, no image scanning. This is a text tool. NO ACCOUNT, EVER No sign-up, no email, no password. Open it and it works. Your library belongs to your device, and you can delete it and everything in it from Settings whenever you want. TWO THINGS WE'LL BE STRAIGHT ABOUT No AI detector is perfect, and that includes this one. Short passages are harder to judge than long ones, and AI text that someone has edited by hand can read as human. Treat the percentage as evidence, not proof, especially when something important rests on it. And we don't do the opposite job. There's no rewriter in here to help anyone slip past a detector. This app answers the question. It won't help you dodge it. THREE FREE CHECKS A DAY You get three checks every 24 hours at no cost. Premium removes the daily limit if you need more. Premium is billed through your Google Play account and renews until you cancel. Manage or cancel any time in the Google Play Store app under Payments & subscriptions > Subscriptions. Privacy: https://ai-detector-ab198.web.app/privacy Terms: https://ai-detector-ab198.web.app/terms Something look wrong? Settings > Contact Support.