Show HN: Turnitindetector.ai – Free AI checker for essays, no sign-up

- Turnitin is the dominant commercial plagiarism-detection service used by most universities and schools worldwide. It now also claims to detect AI-generated text (e.g. from ChatGPT). - Many students and educators are frustrated because Turnitin's AI detector is locked behind a paid institutional subscription and is often opaque about how it works. - This site, "Turnitindetector.ai," is a free, no-sign-up tool that claims to check whether an essay was written by AI — a direct alternative to Turnitin's paid service. The name deliberately mimics Turnitin's. - The broader context: Since ChatGPT launched in late 2022, a cat-and-mouse game has emerged between AI-writing tools and AI-detection tools, with high stakes for academic integrity, grading, and student discipline.