Judge0
Robust, fast, scalable, and sandboxed open-source online code execution system for humans and AI. observed · 2026-08-28
Health v2 · maintenance only
67/100
- Activity 98
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3505
- days_rel: n/a
- days_push: 16
- n_releases_24m: 0
Adoption not part of the score
4401 stars · 926 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Judge0 is an open-source, sandboxed online code execution system exposing a simple HTTP JSON API for compiling and running untrusted code in 60+ programming languages. It can be self-hosted or used as a managed SaaS, and powers applications like online judges, IDEs, e-learning platforms, and AI agent code execution.
Use cases
- run untrusted user-submitted code safely in a sandbox
- build a competitive programming or online judge platform
- execute AI-generated code from agents
- power an online code editor or IDE in the browser
- run coding assessments for recruitment
- execute code for e-learning and teaching platforms
When to choose
- you need scalable, sandboxed execution of code in many languages via an API
- you want a self-hostable online judge or code execution backend
- you need to run AI-generated code safely
- you want detailed execution results, custom limits, and webhooks
When to avoid
- you only need to run trusted code in a single language locally
- you need a full-featured IDE experience rather than an execution API
- you cannot run Docker/isolation infrastructure and don't want a hosted service
Facets
service · maturity active
http-server api-framework security developer-tools developer-tools education apis artificial-intelligence self-hosted cloud online-judge code-execution sandbox competitive-programming code-runner ai-agents online-ide linux docker web-server
3 sources
- readme: https://github.com/judge0/judge0 · fetched 2026-08-28 · dbcfe95eb5b2
- homepage: https://judge0.com · fetched 2026-08-29 · 4b571d8cae37
- site_page: https://ce.judge0.com · fetched 2026-08-29 · 85abcf1cffd6
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| judge0/judge0 | main | 67 |
| judge0/ide | frontend | 51 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem