java

Database for Android and JVM - first and fast, lightweight on-device vector database

:fire: A awesome android expert interview questions and answers（continuous updating ...）

:microscope: Java Code Coverage Library

The Leading Security Assessment Framework for Android.

PDFsam, a desktop application to split, merge, mix, rotate PDF files and extract pages

Fibers, Channels and Actors for the JVM

Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems

Curso para aprender el lenguaje de programación Java y Programación Orientada a Objetos (POO) desde cero y para principiantes. 75 lecciones, más de 8 horas en vídeo y 150 ejercicios prácticos.

Roadmap to becoming a Java developer in 2026

A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.

Android TV Client for Jellyfin

Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management

Official GeoServer repository

😎 A curated list of languages that compile directly to or have their VMs in WebAssembly

Agent framework for the JVM. Pronounced Em-BAY-bel /ɛmˈbeɪbəl/

🚄 FASTJSON2 is a Java JSON library with excellent performance.

Decompiler from Java bytecode to Java, used in IntelliJ IDEA.

Apache Lucene and Solr open-source search software

OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.

Open Location Code is a library to generate short codes, called "plus codes", that can be used as digital addresses where street addresses don't exist.

Fork of Paper which adds regionised multithreading to the dedicated server.

Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.

Java Solutions to problems on LintCode/LeetCode

Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.

vimspector - A multi-language debugging system for Vim

Alibaba Dragonwell8 JDK

Fault tolerance and resilience patterns for the JVM

A complete 3-D game development suite written in Java.

Java 开源商城系统，基于 Spring Boot / Spring Cloud / Vue / Uniapp 的 B2B2C 多商户商城源码，支持小程序商城、微服务、分销、直播、秒杀、Docker 私有化部署。

Process Orchestration Framework