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Plagiarism Detector review

Freemium#26 of 31 in Plagiarism Checkers

A broad local document checker for Windows users who need web, academic, and AI checks.

6.7/10Editor score
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Plagiarism Detector is a Windows desktop application for students, researchers, educators, and professionals who need to examine documents against several source types. It checks web content, scientific papers through SciPap, private documents through PDAS, local folders, and document pairs. Its scope also covers paraphrase and rewrite detection, Unicode anti-cheating detection, and AI-generated-content detection. Documents can be processed locally, and the software supports more than 12 file formats, with reports that highlight matches, show similarity information, and include source URLs.

The freemium model combines a free demo with one-time paid licenses. The demo allows 700 words per document and 10 total checks. The Lite plan includes Internet Check, PDF support, and Document Pair Comparison. Personal adds PDAS connectivity, while Pro adds PDF report export. Portable includes those features plus a USB drive license. The starting price is BRL 150. This progression makes the paid tiers relevant for users who need private-database checks, downloadable reports, or a portable workflow rather than only basic web comparison.

Its strongest fit is a Windows-centered review process involving local document collections, batch checking, multiple file types, and several originality signals in one application. Microsoft Word and Microsoft PowerPoint integrations support common document workflows, while report exports are available in PDF, CSV, and HTML. The main trade-off is platform coverage: the listed platforms are web and Windows, so it is not suited to buyers seeking a broad desktop operating-system range. Choose Plagiarism Detector for local Windows checking across web, academic, private, pairwise, paraphrase, and AI-focused checks; choose another product if cross-platform desktop support is essential.

Plagiarism Detector pros and cons

  • Where it wins
    • Checks web, scientific-paper, private-database, and local-folder sources
    • Detects copied, paraphrased, mosaic, Unicode, and AI-generated content
    • Supports batch checks, local processing, and PDF, CSV, and HTML reports
  • Where it doesn't
    • Available only on web and Windows
    • Free demo allows 700 words per document and 10 total checks
    • Plan pricing is not fully detailed beyond a BRL 150 starting price

Plagiarism Detector fact sheet, pricing and score →

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