Free and Open Source, Distributed, RESTful Search Engine

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

A browser automation framework and ecosystem.

A Model-View-Presenter / Model-View-Intent library for modern Android apps

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

Insanely easy way to work with Android Database.

Makes it easy to create beautiful about screens for your apps

Java streaming parser/serializer for Ion.

MockNeat - the modern faker lib.

Build parsers in Java

Psalm plugin for PhpStorm

NoSQL storage with RxJava bindings [STABLE]

An open-source implementation of the Minecraft server software.

Allows shifting time on the fly and at startup.

Urdu HTML Master is a software which allow to create HTML pages is Urdu, Persian and Arabic languages using unicode in a WYSIWYG user-friendly environment.