Dolos vs Plagiat.pl
Dolos
dolos.ugent.bePlagiat.pl
plagiat.plSide by side
| Figure | Dolos | Plagiat.pl |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 2 | 3 |
| Spec score · Plagiarism Checkers | 9.0 (#5) | 7.3 (#25) |
| Audience | Dolos focuses on teachers checking programming tests and exams, as well as exercises where collaboration is allowed within small groups. | Its offers are aimed at individual users, colleges and high schools, businesses, publishers, agencies, and other institutions. |
| Headquarters | Ghent, Belgium | Warsaw, Poland |
| Integrations | Dolos provides a JSON API for automated integration with exercise platforms such as Dodona. | The Antiplagiarism System is integrated with Editorial System, APD (USOS), Uczelnia XP, OPTIcamp, and other school systems. |
| Purpose | Dolos detects plagiarism by finding similarities between source code submissions. | Plagiat.pl provides antiplagiarism tools to check text originality and protect intellectual property. |
| Support | General questions and support are handled through GitHub discussions, while bugs and feature requests use GitHub issues. | The company lists phone and email support and says it supports institutional implementation and configuration. |
Plans
Plagiat.pl
- Individual document check (Tokens)$3, paid once
- Business subscriptionPriced on request
- Education subscriptionPriced on request
In their own words
Dolos
Dolos is a free, open-source tool for finding similarities between source-code submissions, particularly for teachers reviewing tests, exams, and exercises where collaboration may be allowed in small groups. Its analysis process tokenizes files, fingerprints token sequences, indexes matches, and produces reports. For each file pair, reports include similarity, total overlap, and the longest matching fragment. Dolos uses Tree-sitter parsers and supports languages including Bash, C, C++, C#, Elm, JavaScript, Java, PHP, Python, and TypeScript. The web app accepts ZIP files and detects languages from file extensions; in mixed-language archives, it analyzes only the dominant language unless a language is selected. Its public API accepts ZIP submissions up to 10 MB, with the CLI or library recommended for larger submissions. Analyses can also run locally, with results displayed in a browser, or on a self-hosted server. The free web app is hosted on Ghent University servers in Belgium. Dolos provides a JSON API for integrations such as Dodona and lists CSV as a report export format.