PaperCheck (Turnitin AI Checker)

PaperCheck (also known as Turnitin AI Checker) is an independent, web-based service that provides students and academics with a pre-submission check of their written work against the official Turnitin AI detection and similarity scoring system. It positions itself as a confidential intermediary, allowing users to receive the same AI-writing and plagiarism reports that their educational institutions would generate, but privately and without the work being stored in any academic repository. The target audience is primarily students at all academic levels, especially those concerned about inadvertent AI detection or plagiarism in their submissions. Core features include the generation of official Turnitin reports (combining AI detection and text similarity analysis), strict privacy protocols with metadata stripping and 24-hour file deletion, and a user-friendly process that delivers most reports within 5-15 minutes. Content features include detailed, plain-English explanations of the generated scores and a comprehensive blog with educational guides. The user experience is streamlined for urgency, with one-time payment options and a free preliminary AI check. Technically, it supports multiple file formats (DOCX, PDF, TXT, RTF) and processes documents up to 30,000 words.