Ghidra is a software reverse engineering (SRE) framework

Free universal database tool and SQL client

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

Render After Effects animations natively on Android and iOS, Web, and React Native

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

The automation tower defense RTS

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

🔥 Seata is an easy-to-use, high-performance, open source distributed transaction solution.

Bind Android views and callbacks to fields and methods.

A tool for reverse engineering Android apk files

Implementation of ImageView for Android that supports zooming, by various touch gestures.

Zipkin is a distributed tracing system

An Android library for managing images and the memory they use.

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

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

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

Free implementation of Play Services

🔎 Open source distributed and RESTful search engine.

Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

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

An Android library that allows you to easily create applications with slide-in menus. You may use it in your Android apps provided that you cite this project and include the license in your app. Th…

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

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

A Camera component for React Native. Also supports barcode scanning!

Android filters based on OpenGL (idea from GPUImage for iOS)

Test Automation Made Simple

Bootstrap style widgets for Android, with Glyph Icons

[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.

React Native Local and Remote Notifications