Plagius Professional is a desktop plagiarism detection tool from GH Software LTDA that runs locally on Windows (and has Mac installers) to check documents for possible plagiarism by comparing text against the internet and local files.
If you’re an educator, student, writer, or editor, Plagius helps ensure content originality without uploading sensitive texts to cloud services. All analysis occurs on your machine, preserving privacy.
You add files (DOC/DOCX, PDF, HTML, RTF, TXT, ODT, and more), URLs, or folders. The software then searches multiple internet engines and local repositories to identify matching or similar content. It highlights suspicious passages and generates detailed reports you can export. The Professional version adds batch analysis, local file comparison, cross-comparison, and AI text detection.






