Judge0 CE
Judge0 CE is an open-source, self-hosted app in the Developer Tools category, licensed GPL-3.0 and written mainly in HTML. It ships a Docker image. It has 4,493 GitHub stars and its last commit was on Oct 18, 2026 (data as of Oct 26, 2026).
GitHub stats
- GitHub stars
- 4,493
- Forks
- 942
- Open issues
- 171
- Commits, last 12 months
- 81
- Last commit
- Oct 18, 2026
- Latest release
- v1.13.1Apr 18, 2024
- Created
- Jan 27, 2017
- License
- GPL-3.0Open source
Data as of from the GitHub API. Report an error
Project health
ActiveActive: last commit Oct 18, 2026, 81 commits in 12 months.
- Security policyPublishes a security policy on GitHub
| Last commit | Oct 18, 2026 |
|---|---|
| Commits, last 12 months | 81 |
| Latest release | v1.13.1 (Apr 18, 2024) |
| Releases, last 12 months | 0 |
| Releases, all time | 34 |
| Open issues | 171 |
| Open pull requests | 29 |
| Good first issues | 0 |
| Contributing guide | No |
| Security policy | Yes |
| Created | Jan 27, 2017 |
Health as of , from the GitHub API. A label describes activity, not quality or security. How we label project health · Report a data error
About Judge0 CE
API to compile and run source code.
Description adapted from awesome-selfhosted (CC BY-SA 3.0). Source code: github.com/judge0/judge0.
Topics
- online-judge
- online-compiler
- competitive-programming
- code-executor
- code-runner
- code-execution
- onlinejudge
- online-judges
- onlinejudge-solution
- ai-agents
Repository preview
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Is Judge0 CE free and open source?
Yes. Judge0 CE is open-source software released under the GPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Judge0 CE with Docker?
Yes. Judge0 CE provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to Judge0 CE?
Popular self-hosted alternatives to Judge0 CE include OpenHands, code-server and Sentry Self-Hosted.
Is Judge0 CE actively maintained?
The most recent commit to Judge0 CE was on Oct 18, 2026 with 81 commits in the past twelve months. The latest release is v1.13.1, published Apr 18, 2024. It had 171 open issues on GitHub. appsgit's project-health label for it is "Active" as of Oct 26, 2026.