Grammarly's Plagiarism Checker is an AI-powered tool designed to ensure the originality of your writing. It allows users to easily check for potential plagiarism by scanning text against billions of web pages and academic papers. The tool provides an originality score, highlights sections that may require citations, and offers real-time feedback on writing quality. Beyond plagiarism detection, it assists with grammar, punctuation, and citation formatting, making it an essential resource for students, educators, and professionals aiming to maintain academic integrity and produce clear, original content.