Netflix

Λrrow is a library for Typed Functional Programming in Kotlin.

Square’s meticulous HTTP client for the JVM, Android, and GraalVM.

A Java serialization/deserialization library to convert Java Objects into JSON and back

🚀 A strongly-typed, caching GraphQL client for the JVM, Android, and Kotlin multiplatform.

Markdown parser written in kotlin

A modern I/O library for Android, Java, and Kotlin Multiplatform.

Mediastreamer2 is a powerful and lightweight streaming engine for voice/video telephony applications.

Library for encoding and decoding .avif files

Open-source cryptographic APIs

Jackson has been known as "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java".

Epoxy is an Android library for building complex screens in a RecyclerView

Firebase Cloud Messaging (FCM) is a cross-platform messaging solution that lets you reliably send messages.

Message Security Layer (MSL) is an extensible and flexible secure messaging framework that can be used to transport data between two or more communicating entities.

dnsjava - an implementation of the DNS protocol in Java

Lottie is a library for Android, iOS, Web, and Windows that parses Adobe After Effects animations exported as JSON with Bodymovin and renders them natively on mobile and on the web!

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

Automatic tagging of RxJava 2+ originating subscribe points for onError() investigation.

Circuit is a simple, lightweight, and extensible framework for building Kotlin applications that’s Compose from the ground up.

Protocol Buffers are language-neutral, platform-neutral extensible mechanisms for serializing structured data.

Insight Hub is an error monitoring and reporting software with best-in-class functionality for mobile apps

Android on Autopilot

Linphone is an open source softphone for voice and video over IP calling and instant messaging.

RxJava bindings for Android

Automatic binding+disposal of RxJava streams.

Tiny, easily embeddable HTTP server in Java.

Dagger is a fully static, compile-time dependency injection framework for Java, Kotlin, and Android. It is an adaptation of an earlier version created by Square and now maintained by Google.

CircuitX is a suite of extension artifacts for Circuit. These artifacts are intended to be batteries-included implementations of common use cases, such as out-of-the-box Overlay types or Android navigation interop.