The Kotlin Programming Language.

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

A memory leak detection library for Android.

Samples for Android Architecture Components.

A powerful image downloading and caching library for Android

Flexbox for Android

Library support for Kotlin coroutines

Framework for quickly creating connected applications in Kotlin with minimal effort

A logger with a small, extensible API which provides utility on top of Android's normal Log class.

RxJava binding APIs for Android's UI widgets.

A modern JSON library for Kotlin and Java.

RxJava bindings for Kotlin

Static code analysis for Kotlin

Λrrow - Functional companion to Kotlin's Standard Library

mocking library for Kotlin

Android Library to rapidly develop attractive and insightful charts in android applications.

gRPC and protocol buffers for Android, Kotlin, Swift and Java.

GPP is Android's unofficial release automation Gradle Plugin. It can do anything from building, uploading, and then promoting your App Bundle or APK to publishing app listings and other metadata.

Lightweight JavaFX Framework for Kotlin

Painless Kotlin Dependency Injection

Using Mockito with Kotlin

KotlinConf Schedule Application

A showcase music app for Android entirely written using Kotlin language

A JSON parser for Kotlin

Functional constructs for Kotlin

Kotlin library for Android

Kotlin Coroutines await() extension for Retrofit Call

Kovenant. Promises for Kotlin.

openHAB client for Android

Kotlin extensions to simplify Realm API.