The Kotlin Programming Language.

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

A collection of samples to discuss and showcase different architectural tools and patterns for Android apps.

A shadowsocks client for Android

Alibaba Java Coding Guidelines pmd implements and IDE plugin

A memory leak detection library for Android.

BRVAH:Powerful and flexible RecyclerAdapter

Samples for Android Architecture Components.

Official Jetpack Compose samples.

A powerful image downloading and caching library for Android

Flexbox for Android

A gardening app illustrating Android development best practices with migrating a View-based app to Jetpack Compose.

Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.

Pleasant Android application development

A sample audio app for Android

Library support for Kotlin coroutines

The flexible, easy to use, all in one drawer library for your Android project. Now brand new with material 2 design.

An Android Animation library which easily add itemanimator to RecyclerView items.

Image loading for Android and Compose Multiplatform.

Make a cool intro for your Android app.

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

A modern JSON library for Kotlin and Java.

RxJava binding APIs for Android's UI widgets.

Koin - a pragmatic lightweight dependency injection framework for Kotlin & Kotlin Multiplatform

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

Uber's cross-platform mobile architecture framework.

A declarative framework for building efficient UIs on Android.

A collection of extension libraries for Jetpack Compose

Kotlin/Native infrastructure

Tivi is a TV show tracking Android app, which connects to trakt.tv