Ghidra is a software reverse engineering (SRE) framework

Netty project - an event-driven asynchronous network application framework

Zipkin is a distributed tracing system

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

Arduino IDE 1.x

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

Java Native Access

📈 Capturing JVM- and application-level metrics. So you know what's going on.

Asynchronous Http and WebSocket Client library for Java

Reactive Streams Specification for the JVM

Google Go language IDE built using the IntelliJ Platform

The official AWS SDK for Java 1.x (In Maintenance Mode, End-of-Life on 12/31/2025). The AWS SDK for Java 2.x is available here: https://github.com/aws/aws-sdk-java-v2/

Electronic Circuit Simulator in the Browser

A cross-platform G-Code sender for GRBL, Smoothieware, TinyG and G2core.

The ToroDB solution to provide better analytics on top of MongoDB and make it easier to migrate from MongoDB to SQL

Advanced PCB auto-router

Port of LevelDB to Java

Real-Time Strategy game 3D engine coded in pure java

multi platform circuit layout and schematic drawing tool

RabbitMQ Java client

WebLaF is a fully open-source Look & Feel and component library written in pure Java for cross-platform desktop Swing applications.

A Java math library for OpenGL rendering calculations

Erlang IDE

Multi-DBMS SQL Benchmarking Framework via JDBC

A lightweight, fast and reliable tun2socks for Android

Source code to the book "Effective Java Second Edition" created by Joshua Bloch

Haskell plugin for IntelliJ IDEA

Perl5 plugins for IntelliJ IDEA

A benchmark to compare synchronization techniques for multicore programming