Skip to content
appsgit

Judge0 CE

API to compile and run source code.

github.com/judge0/judge0

GitHub stats

GitHub stars
4,461
Forks
939
Open issues
171
Commits, last 12 months
75
Last commit
Sep 30, 2026
Latest release
v1.13.1Apr 18, 2024
Created
Jan 27, 2017

Data from the GitHub API, refreshed daily.

About Judge0 CE

API to compile and run source code. Judge0 CE is open source under the GPL-3.0 license and written mainly in HTML, so you can read the code, run it on your own hardware and keep full control of your data.

The project has 4,461 stars and 939 forks on GitHub, with 75 commits over the last year. It ships a Docker image, which makes it a good fit for a small VPS or a home server running Docker Compose.

Topics

  • online-judge
  • online-compiler
  • competitive-programming
  • code-executor
  • code-runner
  • code-execution
  • onlinejudge
  • online-judges
  • onlinejudge-solution
  • ai-agents

Repository preview

Judge0 CE repository previewjudge0/judge0Open repository

FAQ

Judge0 CE FAQ

Still curious? Email info@appsgit.com.

What is Judge0 CE?

Judge0 CE is a free, open-source app you can host on your own server, listed in our Developer Tools category. API to compile and run source code. The source code lives at github.com/judge0/judge0, where it has 4,461 stars.

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 open-source 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 Sep 30, 2026 with 75 commits in the past twelve months. The latest release is v1.13.1, published Apr 18, 2024. Check the open issues on GitHub to gauge how quickly maintainers respond.