Codequiry vs Dolos
Codequiry
codequiry.comDolos
dolos.ugent.beSide by side
| Figure | Codequiry | Dolos |
|---|---|---|
| Price from | €25.76/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 2 |
| Spec score · Plagiarism Detection Software | 8.6 (#10) | 9.0 (#5) |
| Audience | The about page describes Codequiry as serving educators, universities, and engineering teams. | Dolos focuses on teachers checking programming tests and exams, as well as exercises where collaboration is allowed within small groups. |
| Integrations | The pricing page lists LMS integrations on Advanced and custom LMS and SIS integrations built to spec on Scale. | Dolos provides a JSON API for automated integration with exercise platforms such as Dodona. |
| Languages | Codequiry says it supports 65+ programming languages, including Python, Java, C/C++, JavaScript, C#, Go, and Rust. | 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. |
| Purpose | Codequiry is a source code plagiarism and AI-detection platform built to help verify that submitted code is the student's own work. | Dolos detects plagiarism by finding similarities between source code submissions. |
| Support | The pricing page lists customer support on Advanced and priority customer support on the Rapid add-on. | General questions and support are handled through GitHub discussions, while bugs and feature requests use GitHub issues. |
Plans
Codequiry
- Grow€25.76 a month
- Rapid€41.40 a month
- Advanced€91.08 a month
- Scale€275.08 a month
In their own words
Codequiry
Codequiry checks submitted source code for plagiarism and AI-generated code, helping educators verify that student work is their own. It compares submissions with peer work, web sources, and historical material. The company says more than 20 analysis engines examine code structure and logic, not just textual matches, and that the system flags code associated with ChatGPT, GitHub Copilot, Claude, and Gemini. It supports more than 65 programming languages, including Python, Java, C/C++, JavaScript, C#, Go, and Rust. Instructors can review similarity scores and side-by-side matches, with matching lines highlighted. Grow includes a web dashboard, desktop client, and API/CLI access; all three listed plans include unlimited MCP calls. Advanced includes LMS integrations, while Scale offers custom LMS and SIS integrations built to spec. The pricing page states FERPA and GDPR compliance, SOC 2 Type II certification, TLS 1.3 encryption, and AES-256 encryption at rest. Uploaded code on plans without Rapid may be retained indefinitely in an anonymized comparison corpus and cannot be deleted on request. Grow costs €25.76 a month; a one-day trial is available and there is no free plan.
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.