PlagCheck supports a wide range of file formats, allowing you to upload and check documents from different word processors and editors. Below you can find the complete list of accepted file types, size limits, and daily usage restrictions.
Supported File Types
The following file formats can be uploaded for plagiarism or AI content analysis:
- Microsoft Word (.docx, .doc)
- Microsoft Excel (.xls, .xlsx)
- OpenOffice (.odt)
- Plain Text (.txt)
- Rich Text (.rtf)
- Adobe PDF (.pdf)
- Fillable PDFs
- Extensible Markup Language (.xml)
- E-book (.epub)
- HyperText Markup Language (.html)
- Data File (.org)
File Size and Word Count Limits
To maintain consistent performance and ensure quick analysis, PlagCheck applies certain limits depending on user type and document size.
| Registered users |
Maximum file size: 64 MB |
| Guest users |
Maximum file size: 2 MB |
| Minimum word count |
50 words per submission |
| Daily free limit (guests) |
Up to 150 words |
| Daily free limit (registered users) |
Up to 300 words |
Important Notes
- Files larger than the allowed limit will not upload — reduce the file size or split the document.
- For best results, upload text-based documents (non-scanned PDFs work best).
- The Checker automatically detects the document’s language and encoding.
- If your file includes images or embedded objects, they will be ignored during analysis.
Summary
PlagCheck accepts Word, PDF, TXT, RTF, and other popular file formats with clear file size and word count rules. Registered users enjoy larger upload limits and more daily free words. Ensuring your document fits these parameters guarantees accurate and fast results.
