AIscan24

AIscan24 is a free web tool that analyzes text to determine if it was generated or significantly rewritten by AI models like ChatGPT, Gemini, or Claude. You paste text into a field, click a button, and within seconds it provides a similarity score. This score indicates how closely the writing patterns match those typical of large language models. The tool looks for statistical anomalies, repetitive phrases, and formatting preferences that often characterize machine-generated text.

The scanner works by evaluating text directly on its servers without storing or sharing your data. It emphasizes that results are estimates rather than definitive proof, providing clear guidelines: scores below 33% suggest human authorship, around 50% indicate mixed or rewritten content, and above 66% point to likely AI generation. This approach aims to reduce false positives that can occur with simpler detectors.

This tool is particularly useful for teachers reviewing student work, editors verifying content originality, and anyone who needs a quick check on text authenticity. It is a straightforward utility for situations where you need an informed opinion on whether a piece of writing shows signs of AI assistance, all while maintaining user privacy.