All Algorithms implemented in Java

Google core libraries for Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

The java implementation of Apache Dubbo. An RPC and microservice framework.

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

Render After Effects animations natively on Android and iOS, Web, and React Native

An image loading and caching library for Android focused on smooth scrolling

快速、简洁、解决大文件内存溢出的java处理Excel工具

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Apollo is a reliable configuration management system suitable for microservice configuration management scenarios.

FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

APM, Application Performance Monitoring System

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

🔥 人人可用的开源 BI 工具，Tableau、帆软的开源替代。

High Performance Inter-Thread Messaging Library

🏆 实时 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 🏆 Real-Time coding-free, powerful and secure ORM 🚀 providing APIs and Docs without coding by Backend, and the returned JSON of API can b…

Powerful and flexible library for loading, caching and displaying images on Android.

基于Spring+SpringMVC+Mybatis分布式敏捷开发系统架构，提供整套公共微服务服务模块：集中权限管理（单点登录）、内容管理、支付中心、用户管理（支持第三方登录）、微信平台、存储系统、配置中心、日志分析、任务和通知等，支持服务治理、监控和追踪，努力为中小型企业打造全方位J2EE企业级开发解决方案。

DataX是阿里云DataWorks数据集成的开源版本。

A high performance caching library for Java

QuestDB is a high performance, open-source, time-series database

flink learning blog. http://www.54tianzhisheng.cn/ 含 Flink 入门、概念、原理、实战、性能调优、源码解析等内容。涉及 Flink Connector、Metrics、Library、DataStream API、Table API & SQL 等内容的学习案例，还有 Flink 落地应用的大型项目案例（PVUV、日志存储、百亿数据实时去…

Apache Pulsar - distributed pub-sub messaging system

Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running mat…

Graphs for Everyone

Apache Druid: a high performance real-time analytics database.

Apache Doris is an easy-to-use, high performance and unified analytics database.

VasSonic is a lightweight and high-performance Hybrid framework developed by tencent VAS team, which is intended to speed up the first screen of websites working on Android and iOS platform.

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

A collection of source code generators for Java.