# Hydro ![GitHub Workflow Status](https://img.shields.io/github/workflow/status/hydro-dev/hydro/CI) ![hydrooj](https://img.shields.io/npm/dm/hydrooj) ![npm](https://img.shields.io/npm/v/hydrooj?label=hydrooj) ![node-current](https://img.shields.io/node/v/hydrooj) ![GitHub contributors](https://img.shields.io/github/contributors/hydro-dev/Hydro) ![GitHub commit activity](https://img.shields.io/github/commit-activity/y/hydro-dev/Hydro) Hydro is a high-performance online judge system. It is easy to deploy (with install script), light weight and extensible. Also see previous version at [vijos/vj4](https://github.com/vijos/vj4) [中文](https://hydro.js.org/) [Open pre-configured test environment in Gitpod](https://gitpod.io/#https://github.com/hydro-dev/Hydro) ## Contact US QQ [3402182471](https://wpa.qq.com/msgrd?v=3&uin=3402182471&site=qq&menu=yes) Hydro QQ Group: 1085853538 Discord [Hydro](https://discord.gg/c633mBUJwS) Telegram [@webpack_exports_undefined](https://t.me/webpack_exports_undefined) ## License AGPL3 ## Thanks to In dictionary order: - [Github](https://github.com/) Code hosting and workflow. - [criyle](https://github.com/criyle) Sandbox. - [Vijos](https://github.com/vijos/vj4) UI framework.