Plagiarism Checker

A fast, accurate plagiarism checker for writers, students, and editors to assess originality and expose copied content across sources.

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About This Tool

The tool analyzes input text to identify potential matches across a broad source set and reports on originality. It targets educators, researchers, editors, and writers who need reliable verification of content integrity. By processing submissions, it helps ensure proper attribution and reduces the risk of accidental plagiarism. The system can ingest plain text, uploaded documents, or URLs, and returns a structured originality report with a similarity score and source excerpts. Conceptually, it uses multiple detection layers: exact text matches, fingerprinting for near-duplicates, n-gram overlap, and paraphrase detection via contextual embeddings. Outputs include a ranked list of sources, excerpts, and an exportable report. Core features include language detection, adjustable similarity thresholds, and selective source filtering. Use cases span student submissions, draft articles, research papers, and editorial workflows where integrity matters. The tool emphasizes speed, scalability, and privacy, enabling integration into LMS, CMS, or workflow automation. Its differentiators include multi-layer analysis, configurable privacy options, and API access for automated checks. This combination supports rigorous review while safeguarding user data.

How to Use

  1. Provide inputs by pasting text or uploading a document, or supplying a URL to fetch content.
  2. Configure detection scope: select language, set similarity threshold, and choose sources to include or exclude.
  3. Run check: initiate analysis to compute similarity and identify matches.
  4. Review outputs: inspect the similarity score, matched sources, and reported excerpts.
  5. Export or share report: download PDF/CSV or send results via API.
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Frequently Asked Questions

Find Quick Answers

What counts as a match?
Matches include exact text, near-duplicates, and paraphrased content. The tool uses multiple detectors—exact-match, fingerprinting, n-gram overlap, and semantic similarity via embeddings—to surface potential plagiarism.
How accurate is the tool?
Accuracy depends on language and source coverage. Results present a similarity score and source list; human review is recommended to assess context, citations, and proper attribution.
Can I upload documents?
Yes. Supported formats include PDF, DOCX, and TXT. Text is extracted for analysis; privacy settings and retention controls apply to uploaded content.
Is there API access?
Yes. The tool provides a REST API for programmatic checks, returning structured results with similarity scores, sources, and excerpts; authentication is required.

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