Free and Open Source, Distributed, RESTful Search Engine

Google core libraries for Java

Free universal database tool and SQL client

Learn System Design concepts and prepare for interviews using free resources.

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)

AI-driven database tool and SQL client, The hottest GUI client, supporting MySQL, Oracle, PostgreSQL, DB2, SQL Server, DB2, SQLite, H2, ClickHouse, and more.

Apache Pulsar - distributed pub-sub messaging system

Access your entire server infrastructure from your local desktop

🔎 Open source distributed and RESTful search engine.

Apache ZooKeeper

Agentic AI Framework for Java Developers

面向企业级市场的一站式AI应用开发框架，支持多厂商大模型统一接入与管理，具备安全可控的企业知识库与高精度检索优化能力，提供可视化流程编排、自主决策智能体与多智能体协同调度，兼容主流 Agent Skill 协议，帮助企业与开发者零门槛快速构建安全、高效、可落地的AI智能体应用与行业解决方案。

Dependency-Track is an intelligent Component Analysis platform that allows organizations to identify and reduce risk in the software supply chain.

A Vietnamese natural language processing toolkit (NAACL 2018)