kitio.aiAdded Oct 29, 2026
Plag
FreemiumPlagiarism checker and AI content detector for documents
What is Plag?
Plag scans uploaded documents for plagiarism and for text produced by tools like ChatGPT, Claude and Gemini. It is built for students and educators who want originality scores, and the site says files are not added to any comparison database or shared with schools.
Plagiarism checks compare against a large database of scientific articles from academic publishers and cover 129 languages, including translated plagiarism. Uploads accept DOC, DOCX, ODT, PAGES, RTF, TXT, PPTX and HWP files, and a free upload returns originality scores.
Educators can use the checker for free for educational purposes. Pricing for full reports depends on document length, and institutions can contact the team for services.
Features
- Plagiarism check
- AI content detection
- Translated plagiarism detection
- 129 languages
- Private file handling
- Many file formats
Tags
Releases
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Organization
Plag
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
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Pros and cons
Pros
- Files not stored in comparison databases
- Free originality scores
- Wide language coverage
Cons
- Full reports are priced by document length
- AI detectors can produce false positives
- No flat subscription price shown
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Q&A
What is Plag?
Plag scans uploaded documents for plagiarism and for text produced by tools like ChatGPT, Claude and Gemini. It is built for students and educators who want originality scores, and the site says files are not added to any comparison database or shared with schools.
Are my files kept in a database?
The site says documents are never added to comparison databases or shared with instructors or schools.
Is it free for teachers?
The site says educators can use the plagiarism checker for free for educational purposes.
How much does Plag cost?
Plag is freemium.
Is there a free version of Plag?
Yes. Plag has a free plan, and paid plans add more usage and features.
What are the main features of Plag?
Plagiarism check, AI content detection, Translated plagiarism detection, 129 languages, Private file handling, Many file formats.
Who makes Plag?
Plag is made by Plag.
What are the best alternatives to Plag?
Popular alternatives include Turnitin, Advacheck, GPTZero.