Plagiarism Checker

This tool provides an objective similarity assessment between two texts or documents. It measures how much content overlaps and flags areas that may indicate copied material, quotes, or close paraphrase. It is intended for educators, students, researchers, and content creators who need to assess originality before submission, publication, or review.
Conceptually, the system normalizes text, tokenizes it, and builds vector representations to compute similarity. It uses TF-IDF with cosine similarity for a robust global measure, and adds segment-level matching to identify exact or near-exact passages. Optional features support file uploads (PDF, DOCX) and language auto-detection to accommodate multilingual materials.
Users provide input A and input B (or upload documents), select an optional language, and specify a threshold. The tool returns a numerical similarity percentage and a list of matched segments with their positions, enabling reviewers to inspect context and verify concerns.
The value of this tool lies in its speed, transparency, and auditable outputs that fit educational and editorial workflows. By focusing on the relationship between two texts, it helps save time in grading, publication checks, and content quality assurance while maintaining privacy and control over submitted data.