Turnitin

Turnitin is a suite of tools designed to help educators uphold academic integrity. Its core function is to check student writing submissions for plagiarism by comparing them against a massive database of academic papers, web content, and student work. The newer, headline feature is its AI writing detection, which analyzes text to determine if it was likely written by a human or generated by an AI like ChatGPT. This gives teachers a clearer picture of a submission's originality.

The system works by integrating directly into common learning management systems, making it a part of the existing grading workflow. Beyond simple similarity checking, its 'Originality' product looks for more sophisticated issues like contract cheating, synonym swapping, and AI paraphrasing. Another component, Turnitin Clarity, aims to provide more transparency into the writing process itself, showing the steps a student took.

This tool is built for educators and institutions at the secondary and higher education levels. It's used to grade essays, long-form assignments, and even code or bubble-sheet exams. Researchers and publishers also use a version called iThenticate to verify the originality of scholarly articles before publication. For teachers overwhelmed by grading or concerned about the impact of generative AI, Turnitin provides a concrete checkpoint.