DOMjudge review
A focused, self-hosted judge for programming contests, with distributed execution and contest APIs.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
DOMjudge is a self-hosted programming contest jury system for organizations running contests such as ICPC events. It accepts source-code submissions, compiles and executes them on distributed judgehosts, compares results with expected output, and presents web interfaces for teams, jury members, and the public scoreboard. The system is free and open source under the GNU General Public License, making it a fit for teams that want control over contest infrastructure and judging workflows rather than a hosted classroom grading product.
Its strongest area is the depth of its contest operations. Administrators can configure programming languages, compilers, and validators, while sandboxed compilation and execution use chroot environments. Jury workflows cover clarifications, resubmissions, rejudging, and detailed judging information. Distributed judging with multiple judgehosts can support an architecture where compilation and execution are handled across more than one judging machine. These capabilities give DOMjudge a clear focus: running structured programming contests with formal judging and scoreboard requirements.
The platform also offers a JSON REST API and an ICPC Contest API implementation, providing defined paths for contest-related integrations. Its web interfaces cover teams, juries, and public scoreboards, while the self-hosted model places deployment and infrastructure responsibility with the organization operating it. Choose DOMjudge when the priority is an open-source system for programming-contest administration, automated code evaluation, and configurable judging. Look elsewhere when the primary need is a broader grading environment beyond contest workflows or a product with a hosted operating model.
DOMjudge pros and cons
- Where it wins
- Distributed judging supports multiple judgehosts
- Configurable languages, compilers, validators, and sandboxing
- Contest workflows include rejudging, clarifications, and scoreboards
- Where it doesn't
- Its focus is programming contests rather than broad grading workflows
- Self-hosted deployment requires Linux infrastructure
- The listed integrations are limited to contest-focused APIs
DOMjudge fact sheet, pricing and score →
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