Dolos vs Smodin Plagiarism Checker
Dolos
dolos.ugent.be
Smodin Plagiarism Checker
smodin.ioSide by side
| Figure | Dolos | Smodin Plagiarism Checker |
|---|---|---|
| Price from | Free | $10/mo |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 4 |
| Spec score · Plagiarism Checkers | 9.0 (#5) | 7.4 (#24) |
| Integrations | Dolos provides a JSON API for automated integration with exercise platforms such as Dodona. | Smodin offers a plagiarism and auto-citation API with pay-as-you-go pricing and documentation. |
| Purpose | Dolos detects plagiarism by finding similarities between source code submissions. | The plagiarism checker compares text against web and academic sources and returns similarity scores, matched sources, and highlighted sections. |
| Support | General questions and support are handled through GitHub discussions, while bugs and feature requests use GitHub issues. | Smodin lists support by email and phone, and its help center asks users to include a screenshot and login email when requesting help. |
Plans
Smodin Plagiarism Checker
- Starter$10 a month
- Premium$16 a month
- Starter$10 a month
- Premium$16 a month
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.
Smodin Plagiarism Checker
Smodin Plagiarism Checker has no write-up on Specifiction yet; its figures are above.