Design patterns implemented in Java

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 libre lightweight streaming front-end for Android.

Netty project - an event-driven asynchronous network application framework

Open Source Identity and Access Management For Modern Applications and Services

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

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

A tool for reverse engineering Android apk files

This project is deprecated and stale. The latest ExoPlayer code is available in https://github.com/androidx/media

Powerful and flexible library for loading, caching and displaying images on Android.

This is a sample app that is part of a series of blog posts I have written about how to architect an android application using Uncle Bob's clean architecture approach.

Style and Grammar Checker for 25+ Languages

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

MIT Deep Learning Book in PDF format (complete and parts) by Ian Goodfellow, Yoshua Bengio and Aaron Courville

The Java gRPC implementation. HTTP/2 based RPC

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

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

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

Java JWT: JSON Web Token for Java and Android

The Clojure programming language

Android library to observe scroll events on scrollable views.

This is a library with components of Android L to you use in android 2.2

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

🚀 Ultimate Android Reference - Your Road to Become a Better Android Developer

JetBrains theme of Material Theme

Enso Analytics is a self-service data prep and analysis platform designed for data teams.

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

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.