《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 代码。简体版和繁体版同步更新，English version ongoing

Free and Open, Distributed, RESTful Search Engine

🔥「企业级低代码平台」前后端分离架构SpringBoot 2.x/3.x，SpringCloud，Ant Design&Vue3，Mybatis，Shiro，JWT。强大的代码生成器让前后端代码一键生成，无需写任何代码! 引领新的开发模式OnlineCoding->代码生成->手工MERGE，帮助Java项目解决70%重复工作，让开发更关注业务，既能快速提高效率，帮助公司节省成本，同时又不失…

Free universal database tool and SQL client

阿里巴巴 MySQL binlog 增量订阅&消费组件

Mirror of Apache Kafka

Telegram for Android source

Desktop/Android/HTML5/iOS Java game development framework

The automation tower defense RTS

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

GraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

Distributed SQL transaction & query engine for data sharding, scaling, encryption, and more - on any database.

🏆 零代码、全功能、强安全 ORM 库 🚀 后端接口和文档零代码，前端(客户端) 定制返回 JSON 的数据和结构。 🏆 A JSON Transmission Protocol and an ORM Library 🚀 provides APIs and Docs without writing any code.

Open-source IoT Platform - Device management, data collection, processing and visualization.

Apache Pulsar - distributed pub-sub messaging system

Mirror of Apache Cassandra

Infinitely scalable, event-driven, language-agnostic orchestration and scheduling platform to manage millions of workflows declaratively in code.

JanusGraph: an open-source, distributed graph database

Apache Kafka® running on Kubernetes

Apache IoTDB

A complete 3-D game development suite written in Java.

《系统重构与迁移指南》手把手教你分析、评估现有系统、制定重构策略、探索可行重构方案、搭建测试防护网、进行系统架构重构、服务架构重构、模块重构、代码重构、数据库重构、重构后的架构守护

PDFsam, a desktop application to split, merge, mix, rotate PDF files and extract pages

Database Subsetting and Relational Data Browsing Tool.

QMQ是去哪儿网内部广泛使用的消息中间件，自2012年诞生以来在去哪儿网所有业务场景中广泛的应用，包括跟交易息息相关的订单场景； 也包括报价搜索等高吞吐量场景。

Android-BLE蓝牙框架,提供了扫描、连接、使能/除能通知、发送/读取数据、接收数据,读取rssi,设置mtu等蓝牙相关的所有操作接口,内部优化了连接队列,以及快速写入队列, 并支持多服务通讯,可扩展配置蓝牙相关操作。

Pravega - Streaming as a new software defined storage primitive

EventMesh is a new generation serverless event middleware for building distributed event-driven applications.

GeoGebra apps (mirror)