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.

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

Netty project - an event-driven asynchronous network application framework

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

Open Source Identity and Access Management For Modern Applications and Services

🔥 Android developers should collect the following utils(updating).

Event Driven Orchestration & Scheduling Platform for Mission Critical Applications

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Bind Android views and callbacks to fields and methods.

Desktop/Android/HTML5/iOS Java game development framework

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

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

RxJava bindings for Android

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

Zipkin is a distributed tracing system

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

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

A circular ImageView for Android

🏗 Build container images for your Java applications.

Access your entire server infrastructure from your local desktop

✔️ Simple, pretty and powerful logger for android

greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

Cute view animation collection.

The Most Powerful Swipe Layout!

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.

An Android transformation library providing a variety of image transformations for Glide.

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.