Java

Automated testing to find logic and performance bugs in database systems

Open Source ML Model Versioning, Metadata, and Experiment Management

A simple and easy to use Web Report System for java.EasyReport是一个简单易用的Web报表工具(支持Hadoop,HBase及各种关系型数据库),它的主要功能是把SQL语句查询出的行列结构转换成HTML表格(Table)，并支持表格的跨行(RowSpan)与跨列(ColSpan)。同时它还支持报表Excel导出、图表显示及固定表头与左边列的功能。

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

3D Style Page Flip on Android

🎸 B3log 分布式社区的 Java 博客端节点系统，欢迎加入下一代社区网络。B3log distributed community blog-end node based on Java, welcome to join the next generation community network.

JVector: the most advanced embedded vector search engine

Termux add-on app allowing programs to be run at boot.

Run OpenClaw on Android with a single command — no proot, no Linux

The open source BIMserver platform

a Business Process Management (BPM) Suite

The Standard Webhooks specification

MIT App Inventor Public Open Source

Sketchware Pro's sources in Java. Now anyone can contribute to Sketchware Pro.

Postgresql JDBC Driver

Easy check permission library for Android Marshmallow

The best Java open source crypto currency exchange platform, bitcoin exchange based on Java | BTC exchange | ETH exchange | digital currency exchange | trading platform | matching trading engine. This project is based on the development of Spring Cloud microservices and can be used to build and secondary development of digital currency exchanges. It has a complete source code for matching trading engines, back-end management (back-end + front-end), front-end (transaction page, activity page, personal center, etc.), Android APP source code, Apple APP source code, currency wallet RPC source code. Contact Email: 877070886@qq.com

BungeeCord, the 6th in a generation of server portal suites. Efficiently proxies and maintains connections and transport between multiple Minecraft servers.

AI on Hadoop

😸一个快速开发脚手架，快速搭建企业级后台管理系统，并提供多种便捷starter进行功能扩展。主要功能包括前后台用户分离，菜单权限，数据权限，定时任务，访问日志，操作日志，异常日志，统一异常处理，XSS过滤，SQL防注入，国际化 等多种功能

Fully async, multithreaded, predictive, open source, 3.01 reach, 1.005 timer, 0.01% speed, 99.99% antikb, "bypassable" 1.8-1.21 minecraft anticheat.

Android 悬浮窗框架，好用不解释

webrtc VideoCall VideoConference 视频通话 视频会议

Spring Security and Angular:: A tutorial on how to use Spring Security with a single page application with various backend architectures, ranging from a simple single server to an API gateway with OAuth2 authentication.

🦎 A lightweight, multi-protocol gateway for event-driven applications and AI agents. Expose and govern Kafka, MQTT, APIs, and MCP through one high-performance engine with shared routing, security, schema, and observability.

PLC4X The Industrial IoT adapter

DataGear数据可视化分析平台，自由制作任何您想要的数据看板

A simple material design app intro with cool animations and a fluent API.

PLDroidShortVideo 是七牛推出的一款适用于 Android 平台的短视频 SDK，提供了包括美颜、滤镜、水印、断点录制、分段回删、视频编辑、混音特效、视频剪辑、本地转码、视频上传在内的多种功能，支持高度定制以及二次开发。