Dolos
7.7#1 in code duplication detection toolsFree planFree planWebAPILinuxmacOS
VisitDolos vs Viper
What both publish
| Fact | Dolos | Viper |
|---|---|---|
| Headquarters | Ghent, Belgium | Fujairah, United Arab Emirates |
| Purpose | Dolos detects plagiarism by finding similarities between source code submissions. | Viper checks documents for plagiarism and AI-generated content. |
| Reports | Reports include similarity, total overlap, and the longest matching fragment for file pairs. | Viper provides reports with highlighted matches, source URLs and scores, and downloadable PDF reports. |
| Support | General questions and support are handled through GitHub discussions, while bugs and feature requests use GitHub issues. | Viper offers support through LiveChat and email for paid scans. |
Dolos plans
- Dolos web appFree
- Free web applicationFree
Viper plans
- Small£5, paid once
- Starter£9, paid once
- Standard£14.95, paid once
- Professional£25.95, paid once
- Advanced£34.95, paid once
- Premium£69.95, paid once
Pick Dolos if…
Dolos is suited to teachers checking source-code submissions, including tests, exams, and exercises where small-group collaboration is allowed. It can also suit users who want local analysis or to host the tool themselves.
Pick Viper if…
Viper may suit students checking documents, as well as institutions, schools, universities, businesses, and professionals. Its browser-based access and broad file-format support may fit users working across different platforms.