Hydro - Next generation high performance online-judge platform - 新一代高效强大的信息学在线测评系统 (a.k.a. vj5)
⚡🔥Hcode Online Judge(HOJ)🔥⚡：基于SpringCloud与Vue前后端分离，分布式架构的在线测评平台OJ (An open source online judge system base on SpringBoot, Springcloud Alibaba and Vue.js !)
High Performance JSON Serialization for ActiveRecord & Ruby Objects
✨ Open source online judge system (based on Microservice). SDUOJ 开源在线评测系统（基于微服务架构）。开源社区QQ群 808751832。示例网站 https://demo.sduoj.com
Sandbox service built on Linux container technologies with simple REST and gRPC API
北航OJ通关攻略，包括北航软件学院的在线评测网站（OJ）——AC编程（accoding.buaa.edu.cn）开放课程的全部题解
在线练习系统 ==> 后端：基于Gin、Redis、Gorm实现 前端：基于Vue、Element实现
⚡️ Faster JSON serialization for Ruby on Rails. Easily migrate away from Active Model Serializers.
The answers for luogu.com.cn for you in different languages.
✅ Generate TypeScript interfaces from your JSON serializers
Holding contests using problems from other OJs!!
Virtual Online Judge（VOJ）是基于微服务架构的高性能在线评测系统。拥有本地判题服务，同时支持其它知名 OJ (HDU、POJ...) 的远程判题。采用现阶段流行技术实现，采用 Docker 容器化部署。
A lightweight, high-performance, universal program judger supporting multiple languages, special judge and SQL judge.
A simple program executor —— 简单到用命令行就能跑起来的代码评测工具
Online Judge Kernel，Virtual Judge Adapter，Command-Line Interface， Telnet Server， FTP Server
