Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Free and Open Source, Distributed, RESTful Search Engine

Ghidra is a software reverse engineering (SRE) framework

All Algorithms implemented in Java

Spring Framework

Termux - a terminal emulator application for Android OS extendible by variety of packages.

Free universal database tool and SQL client

一款 AI 驱动的低代码平台，提供"零代码"与"代码生成"双模式——零代码模式一句话搭建系统，代码生成模式自动输出前后端代码与建表 SQL，生成即可运行。平台内置 AI 聊天助手、AI大模型、知识库、AI流程编排、MCP 与插件体系，兼容主流大模型，支持一句话生成流程图、设计表单、聊天式业务操作，解决 Java 项目 80% 重复工作，高效且不失灵活。

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

A libre lightweight streaming front-end for Android.

Netty project - an event-driven asynchronous network application framework

A browser automation framework and ecosystem.

Open Source Identity and Access Management For Modern Applications and Services

Apache Kafka - A distributed event streaming platform

Browse media content with your own rules on Android TV

Telegram for Android source

Event Driven Orchestration & Scheduling Platform for Mission Critical Applications

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

Apache Flink

a fast, scalable, multi-language and extensible build system

Jenkins automation server

A tool for reverse engineering Android apk files

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

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

MyBatis SQL mapper framework for Java

IntelliJ IDEA & IntelliJ Platform

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

Quarkus: Supersonic Subatomic Java.

🔎 Open source distributed and RESTful search engine.

No clever tagline needed.