Turnitin Originality vs Viper
| Turnitin Originality | Viper | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Web | Web |
| Source coverage | web_academic_and_publisher | web_academic_and_publisher |
| Supported file formats | DOC, DOCX, PDF, PPTX, PPSX, XLS, XLSX, PS, RTF, HTM, HTML, WPD, ODT, TXT, HWP, HWPX | html, htm, txt, rtf, xml, md, pdf, docx, doc, pptx, ppt, odt, epub, odp, ppsx, pages, xlsx, xls |
| LMS integrations | Yes | — |
| API access | Yes | Yes |
| Report export | ||
| AI writing check | Yes | Yes |
| Free plan | — | No |
Both are listed in Best AI Plagiarism Checkers. On Samsung Mobile US Press, Viper scores higher on our published basis.