# QingdaoU/OnlineJudge

Open source online judge based on Vue, Django and Docker. | 青岛大学开源 Online Judge | QQ群 496710125 | admin@qduoj.com

Repository: https://github.com/QingdaoU/OnlineJudge
Canonical: https://ross.abutalabs.com/products/onlinejudge
Homepage: http://opensource.qduoj.com/
Language: Python
License: MIT
License Family: permissive
Topics: onlinejudge, django, django-rest-framework, python
Last push: 2024-10-23T03:05:08+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4036, "days_push": 679, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6534, forks 1534 (observed 2026-08-28T04:09:45.009262+00:00)

## What it is
A self-hosted online judge system for hosting programming contests and problem sets, built with Django (backend), Vue (frontend), and a Docker-based sandboxed judger. It supports ACM/OI contest rules, multiple languages (C, C++, Java, Python), rankings, and one-click Docker deployment.

## Use cases
- host programming contests for a university or school
- run an online judge for competitive programming practice
- self-host a platform where students submit code and get judged
- organize ACM/ICPC-style contests with rankings
- create a problem bank with template problems and MathJax support

## When to choose
- you need a full-featured, self-hosted judge with contest support and Docker deployment
- you want ACM and OI scoring rules with realtime rankings
- you need multi-language judging in a seccomp sandbox

## When to avoid
- you only need simple code execution without contest features
- you need judging for languages beyond C/C++/Java/Python without custom work
- you want a fully managed SaaS judge rather than self-hosting

## Facets
- artifact type: application
- maturity: stable
- function: web-framework, api-framework, http-server, container-runtime
- domain: education, web-development, developer-tools, self-hosted
- platform: python, self-hosted
- tags: online-judge, competitive-programming, django, vue, code-execution, contests, sandbox, docker, linux, web-server

## Member repositories
- QingdaoU/OnlineJudge (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:45.009262+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:44:07.956138+00:00, confidence not recorded.
  - readme: https://github.com/QingdaoU/OnlineJudge (fetched 2026-08-28T04:09:45.009262+00:00, sha a0d60bb40243)
  - homepage: http://opensource.qduoj.com/ (fetched 2026-08-29T08:40:34.990516+00:00, sha f33b711115d8)
- Data as of 2026-08-30T08:39:29.467469+00:00.