Stars
Free and Open Source, Distributed, RESTful Search Engine
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
Netty project - an event-driven asynchronous network application framework
A browser automation framework and ecosystem.
Apollo is a reliable configuration management system suitable for microservice configuration management scenarios.
Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…
CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。
Vert.x is a tool-kit for building reactive applications on the JVM
APM, (Application Performance Management) tool for large-scale distributed systems.
AWS Service registry for resilient mid-tier load balancing and failover.
OpenRefine is a free, open source power tool for working with messy data and improving it
A scalable web crawler framework for Java.
业内为数不多致力于极致体验的超强全自研跨平台(windows/linux/android/iOS)流媒体内核，通过模块化自由组合，支持实时RTMP推流、RTSP推流、RTMP播放器、RTSP播放器、录像、多路流媒体转发、音视频导播、动态视频合成、音频混音、直播互动、内置轻量级RTSP服务等，比快更快，业界真正靠谱的超低延迟直播SDK(延迟低至100~200ms)。
Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.
Pentaho Data Integration ( ETL ) a.k.a Kettle
💸 WeChat's lucky money helper (微信抢红包插件) by Zhongyi Tong. An Android app that helps you snatch red packets in WeChat groups.
Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.
🚀 Lightning fast and elegant mvc framework for Java8
lanproxy是一个将局域网个人电脑、服务器代理到公网的内网穿透工具，支持tcp流量转发，可支持任何tcp上层协议（访问内网网站、本地支付接口调试、ssh访问、远程桌面、http代理、https代理、socks5代理...）。技术交流QQ群 736294209
Distributed Configuration Management Platform(分布式配置管理平台)
A scalable, distributed Time Series Database.
龙果支付系统（roncoo-pay）是国内首款开源的互联网支付系统，拥有独立的账户体系、用户体系、支付接入体系、支付交易体系、对账清结算体系。目标是打造一款集成主流支付方式且轻量易用的支付收款系统，满足互联网业务系统打通支付通道实现支付收款和业务资金管理等功能。
Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.
Distributed Scheduled Job Framework