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 memory leak detection library for Android.

A private messenger for Android.

Official Jetpack Compose samples.

A powerful image downloading and caching library for Android

A fully functional Android app built entirely with Kotlin and Jetpack Compose

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

Framework for quickly creating connected applications in Kotlin with minimal effort

Library support for Kotlin coroutines

A sample audio app for Android

🦭 Video/Audio Downloader for Android, based on yt-dlp, designed with Material You

Using system APIs directly with adb/root privileges from normal apps through a Java process started with app_process.

Free and open source manga reader for Android

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

A Kernel based root solution for Android

Image loading for Android and Compose Multiplatform.

Kotlin Multiplatform Music Downloader, Supports Spotify / Gaana / Youtube Music / Jio Saavn / SoundCloud.

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

IdeaVim – A Vim engine for JetBrains IDEs

AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.

An alternative frontend for YouTube, for Android.

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

Loop Habit Tracker, a mobile app for creating and maintaining long-term positive habits

🗡️ Pokedex demonstrates modern Android development with Hilt, Material Motion, Coroutines, Flow, Jetpack (Room, ViewModel) based on MVVM architecture.

SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!

A collection of extension libraries for Jetpack Compose

🗺 The Android Developer Roadmap offers comprehensive learning paths to help you understand Android ecosystems.

An android image compression library.