Dolos vs Plagiarisma
Dolos
dolos.ugent.bePlagiarisma
plagiarisma.netSide by side
| Figure | Dolos | Plagiarisma |
|---|---|---|
| Price from | Free | $8.25/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 8 |
| Spec score · Plagiarism Checkers | 9.0 (#5) | 9.1 (#4) |
| Spec score · Plagiarism Detection Software | 9.0 (#5) | 9.0 (#6) |
| Headquarters | Ghent, Belgium | 71-75 Shelton St, London WC2H 9JQ, United Kingdom |
| Languages | Dolos uses Tree-sitter parsers and supports common languages including Bash, C, C++, C#, Elm, JavaScript, Java, PHP, Python, and TypeScript out of the box. | The homepage says the checker supports more than 190 languages. |
| Purpose | Dolos detects plagiarism by finding similarities between source code submissions. | The online checker scans text against web sources, books, and academic papers for originality. |
| Support | General questions and support are handled through GitHub discussions, while bugs and feature requests use GitHub issues. | The contact page lists [email protected] and says premium members should include a valid order ID when reporting issues or sending suggestions. |
| What it does | Dolos detects similarities and possible plagiarism among programming source-code submissions. | Plagiarisma checks pasted text, uploaded documents, and URLs for matching passages and reports a uniqueness score. |
Plans
Plagiarisma
- Plagiarisma Desktop Plagiarism CheckerFree
- Standard checksFree
- One-day subscription$2, paid once
- One-month subscription$10, paid once
- Three-month subscription$25, paid once
- Six-month subscription$49, paid once
- One-year subscription$99 a year
- Paid featuresPrice not published
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.
Plagiarisma
Plagiarisma is an originality checker that compares text with web sources, books and academic papers. Users can paste text, enter a URL or upload a document in formats including PDF, DOCX, RTF, TXT, HTML, spreadsheets, presentations and ebooks. Its homepage says the checker supports more than 190 languages. The service runs on the web and has a Windows desktop download listed as version 2.0 for.NET on Windows x86/x64. Desktop tools include plagiarism scanning, AI content detection, paraphrasing and APA citation generation. A Google Docs add-on offers checking, paraphrasing, summarizing and AI detection; its listing allows five free document scans per day, with paid features available by monthly subscription. A free plan is listed, including a Windows desktop checker at free. The company says it does not store private texts in public databases. Its FAQ says premium membership orders may be refunded within three days, while trial orders are not refundable.