Free and Open Source, Distributed, RESTful Search Engine

Ghidra is a software reverse engineering (SRE) framework

Free universal database tool and SQL client

Dex to Java decompiler

An image loading and caching library for Android focused on smooth scrolling

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

Desktop/Android/HTML5/iOS Java game development framework

High Performance Inter-Thread Messaging Library

Tinker is a hot-fix solution library for Android, it supports dex, library and resources update without reinstall apk.

Zipkin is a distributed tracing system

A standalone Java Decompiler GUI

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

Apache Druid: a high performance real-time analytics database.

Your Cheat Sheet For Android Interview - Android Interview Questions and Answers

OpenRefine is a free, open source power tool for working with messy data and improving it

Free implementation of Play Services

Realm is a mobile database: a replacement for SQLite & ORMs

An asynchronous, callback-based Http client for Android built on top of Apache's HttpClient libraries.

Continuous Inspection

Views and Drawable for displaying animated GIFs on Android

Flyway by Redgate • Database Migrations Made Easy.

Java Native Access

Distributed and fault-tolerant realtime computation: stream processing, continuous computation, distributed RPC, and more

A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

[DEPRECATED] Action bar implementation which uses the native action bar on Android 4.0+ and a custom implementation on pre-4.0 through a single API and theme.

Use SQL to query Elasticsearch

Runtime code generation for the Java virtual machine.

Gephi - The Open Graph Viz Platform

Main Liquibase Source