Ghidra is a software reverse engineering (SRE) framework

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

Free universal database tool and SQL client

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Apache Flink

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

APM, Application Performance Monitoring System

A Java serialization/deserialization library to convert Java Objects into JSON and back

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 🚀

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

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.

IntelliJ IDEA & IntelliJ Platform

Zipkin is a distributed tracing system

The official home of the Presto distributed SQL query engine for big data

Quarkus: Supersonic Subatomic Java.

Apache Pulsar - distributed pub-sub messaging system

A standalone Java Decompiler GUI

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

Logstash - transport and process your logs, events, or other data

Vert.x is a tool-kit for building reactive applications on the JVM

🏗 Build container images for your Java applications.

Style and Grammar Checker for 25+ Languages

✔️ Simple, pretty and powerful logger for android

Very spicy additions to the Java programming language.

Generate diagrams from textual description

Free implementation of Play Services

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

No clever tagline needed.