Plagiarism Checker

The tool analyzes user-provided text to assess originality by comparing it against indexed public sources. It returns a similarity score, a list of matched sources, and excerpts to help reviewers evaluate potential overlaps. It is designed for students, researchers, and educators who need to verify content before submission or publication. The process emphasizes clarity, reproducibility, and efficient reporting, enabling users to understand why a match was found and how to address it in citations or rewriting. The system supports multiple languages, handles large documents by chunking, and allows exporting a concise originality report for record-keeping or institutional audits. By surfacing sources and excerpts, it reduces manual search time and improves confidence in writing integrity. The tool adheres to standard academic integrity practices and presents results in a transparent, auditable format, suitable for classroom feedback, grant applications, or journal submissions.
Operationally, the checker ingests text via paste or file input, detects language, tokenizes into 5-gram shingles, computes TF-IDF vectors, and measures cosine similarity against a curated index of sources. It then aggregates results to provide a per-source similarity percentage and a global score. Matches are ranked by similarity and annotated with brief excerpts where available. Users can adjust thresholds to filter borderline matches and opt to include or exclude quotes and boilerplate text. The export formats include a machine-readable report and a human-readable summary suitable for institutional records and reviewer notes.