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

Free universal database tool and SQL client

The automation tower defense RTS

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

JDK main-line development https://openjdk.org/projects/jdk

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

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

A high performance caching library for Java

A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)

Apache Pulsar - distributed pub-sub messaging system

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.

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…

Free implementation of Play Services

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

The Clojure programming language

Resilience4j is a fault tolerance library designed for Java8 and functional programming

Use SQL to query Elasticsearch

The modern Java bytecode editor

Haven is for people who need a way to protect their personal spaces and possessions without compromising their own privacy, through an Android app and on-device sensors

Statistical Machine Intelligence & Learning Engine

Gephi - The Open Graph Viz Platform

BTrace - a safe, dynamic tracing tool for the Java platform

Simple OAuth library for Java

Alibaba Dragonwell8 JDK

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.

Traditional roguelike game with pixel-art graphics and simple interface

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

Micro second messaging that stores everything to disk