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DOMjudge

Free#25 of 33 in Automated Grading SoftwareCoding Challenge Platforms

DOMjudge: A focused, self-hosted judge for programming contests, with distributed execution and contest APIs. Ranked #25 of 33 in Automated Grading Software by our editors (6.7/10); pricing: Free plan; best for self-hosted programming contests and judging.

6.7/10Editor score
Visit DOMjudge
DOMjudge6.7 Visit DOMjudge

At a glance

  • Editor score
    6.7 / 10
  • Pricing
    Free plan
  • Best for
    Self-hosted programming contests and judging
  • Free plan
    Yes
  • Paid from
    Free
  • Programming autograding
    Yes
  • Founded
    2004
  • Facts checked
    20 Sep 2026
DOMjudge screenshot

  • 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

Our verdict on DOMjudge

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.

Your product? Our editors can test DOMjudge in depth and publish a review, labelled as paid · from $149/mo →

DOMjudge pricing

Plans Free planFree Free to use — no paid tier required for the core job.
See plans on domjudge.org

DOMjudge fact sheet

Free planYes
Paid fromFree
Programming autogradingYes
Math autogradingNot verified
Written-work OCRNot verified
LMS or LTI supportNot verified
Question bankNot verified
Supported code languagesNot verified
DeploymentSelf-hosted
PlatformsWeb, Linux
SupportCommunity, Docs
Built forSmall business, Mid-market, Enterprise (editorial estimate)
Integrations2 integrations: JSON REST API, ICPC Contest API See all →
PricingFree plan
Websitedomjudge.org
Facts checked20 Sep 2026

DOMjudge integrations

DOMjudge lists 2 integrations on its own site.

  • JSON REST API
  • ICPC Contest API

See all DOMjudge integrations →

Alternatives to DOMjudge

See all DOMjudge alternatives →

Also Ranked In

DOMjudge is ranked in 2 of our directories.

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Featured on iTechGuides

Featured on iTechGuides — DOMjudge 6.7/10

DOMjudge is listed in our Automated Grading Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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