ZeroGPT

ZeroGPT is a free online AI content detector that identifies text generated by AI models such as ChatGPT, Gemini, Claude, and others. It provides a probability score indicating whether content is AI-generated or human-written, along with sentence-level highlighting via its DeepScan feature. The tool supports up to 2,000 words per scan, file upload, and does not require signup or payment. It is designed for students, bloggers, professionals, and writers who need to verify the originality of essays, articles, or documents. ZeroGPT also offers a Chrome extension (coming soon) and is accessible via any web browser.