ClassMarker vs DOMjudge
ClassMarker
classmarker.comDOMjudge
domjudge.orgSide by side
| Figure | ClassMarker | DOMjudge |
|---|---|---|
| Price from | $19.95/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 9 | 1 |
| Spec score · Automated Grading Software | 9.4 (#1) | 8.1 (#13) |
| Integrations | Official integration options include LMS or CRM connections, website embeds, user-ID tracking, access lists, Zapier webhooks and real-time result delivery. | DOMjudge can import problem packages in the Kattis Problem Tool format, and Polygon2DOMjudge converts Codeforces Polygon exports to DOMjudge format. |
| Support | GetApp lists FAQs/forum, knowledge base and email/help-desk support, with video training. | Users can seek installation and usage help through the development mailing list or the DOMjudge Slack workspace; responses on Slack may take longer depending on time zones. |
Plans
ClassMarker
- Free accountFree
- Professional 1$19.95 a month
- Credit pack 50$25, paid once
- Professional 2$39.95 a month
- Credit pack 250$100, paid once
- Credit pack 1000$300, paid once
- Credit pack 2500$625, paid once
- Credit pack 5000$1,000, paid once
- EnterprisePriced on request
In their own words
ClassMarker
ClassMarker has no write-up on Specifiction yet; its figures are above.
DOMjudge
DOMjudge is a free system that automatically evaluates programming contest submissions and provides web interfaces for teams, juries, and the public. It is designed mainly for contests such as ICPC, where teams work on site against a fixed problem set and time frame. Judging can run across multiple judge hosts, and the system is designed to scale. Administrator tools support rejudging, clarifications, and detailed submission and judging information. A modular structure allows languages or compilers to be added, while a JSON REST API implements the ICPC Contest API with extensions, except for the optional team-members endpoint. DOMjudge imports Kattis Problem Tool packages, and Polygon2DOMjudge converts Codeforces Polygon exports. You can download and run it yourself; official Docker images are available for the domserver and judgehost. The listed latest stable release is version 9.0.1, dated 11 June 2026.