Kotlin

okhttpsquare/okhttp

An efficient HTTP client for JVM, Android, and GraalVM with HTTP/2, connection pooling, caching, and modern TLS support.

MPAndroidChartPhilJay/MPAndroidChart

A powerful and easy-to-use chart library for Android, supporting line, bar, pie, radar, bubble, and candlestick charts with scaling, panning, and animations.

leakcanarysquare/leakcanary

A memory leak detection library for Android that automatically finds and reports leaks.

NativeScriptNativeScript/NativeScript

A framework for building truly native mobile apps for iOS, Android, and visionOS using TypeScript and popular web frameworks.

Exoplayergoogle/ExoPlayer

A deprecated Android media playback library, now superseded by AndroidX Media3.

IntelliJ IDEA Community EditionJetBrains/intellij-community

The open-source codebase for IntelliJ IDEA and the IntelliJ Platform, enabling IDE and plugin development.

VLCvideolan/vlc

A libre, cross-platform media player and multimedia engine that plays virtually any audio or video format.

AnkoKotlin/anko

A Kotlin library for faster and cleaner Android development with DSLs for layouts, SQLite, coroutines, and common helpers.

Capacitorionic-team/capacitor

Build cross-platform native Progressive Web Apps for iOS, Android, and the Web with a single JavaScript codebase.

Deeplearning4jdeeplearning4j/deeplearning4j

A comprehensive JVM-based deep learning ecosystem for building, training, and deploying models with support for model import and distributed training.

Universal Music Playergooglesamples/android-UniversalMusicPlayer

A deprecated Android sample app demonstrating cross-platform audio playback across phones, tablets, Auto, Wear, TV, Cast, and Assistant.

Coilcoil-kt/coil

A fast, lightweight, and modern Kotlin-first image loading library for Android and Compose Multiplatform.

MaterialDrawermikepenz/MaterialDrawer

A flexible, easy-to-use drawer navigation library for Android apps, following Material Design guidelines.

WCDBTencent/wcdb

A cross-platform mobile database framework based on SQLite, offering ORM, encryption, and corruption recovery.

Permission Dispatcherpermissions-dispatcher/PermissionsDispatcher

A declarative annotation-based library for handling Android runtime permissions in Kotlin and Java.

RunAnywhereRunanywhereAI/runanywhere-sdks

SDKs for adding private, on-device AI features like LLM chat, speech-to-text, and text-to-speech to mobile and web apps.

Moshisquare/moshi

A modern JSON library for Kotlin and Java that makes it easy to parse JSON into classes and serialize objects to JSON.

RxBindingJakeWharton/RxBinding

RxJava binding APIs for Android UI widgets from the platform and support libraries.

okiosquare/okio

A modern I/O library for Android, Java, and Kotlin Multiplatform that complements java.io and java.nio.

Android Debug Databaseamitshekhariitbhu/Android-Debug-Database

A library for debugging Android databases and shared preferences directly in a browser.

Pokedexskydoves/Pokedex

A sample Android app demonstrating modern development with Hilt, Coroutines, Flow, Jetpack, and MVVM architecture.

Compressorzetbaitsu/Compressor

A lightweight Android library for compressing images with minimal quality loss.

Detektdetekt/detekt

A static code analysis tool for Kotlin that identifies code smells and enforces coding standards.

gatlinggatling/gatling

An open-source load testing platform for modern performance engineering with code-first test definition and asynchronous architecture.

Smilehaifengl/smile

A fast and comprehensive machine learning framework for Java, Scala, and Kotlin with state-of-the-art algorithms and data visualization.

Aldaalda-lang/alda

A text-based programming language for composing and playing back music using a simple markup-like syntax.

WilliamChartdiogobernardino/WilliamChart

Android library for rapidly implementing attractive and insightful charts in Android applications.

Flying Carpetspieglt/flyingcarpet

Cross-platform file transfer between Android, iOS, Linux, macOS, and Windows over ad hoc WiFi, no network infrastructure required.

mapdbjankotek/MapDB

An embedded Java database engine providing concurrent collections backed by disk storage or off-heap memory.

DBFlowagrosner/DBFlow

A blazing fast, powerful, and simple ORM Android database library built on SQLite with Kotlin and annotation processing.

FXGLAlmasB/FXGL

A JavaFX-based game development framework for building 2D games and complex UI applications with a clean, high-level API.

JDADV8FromTheWorld/JDA

A Java library for building Discord bots using the real-time gateway and REST API with event-driven architecture.

JDADV8FromTheWorld/JDA

A Java wrapper for the Discord API, enabling developers to create scalable and feature-rich Discord bots.

Furyalipay/fury

A high-performance multi-language serialization framework using JIT compilation and zero-copy techniques for fast data exchange.

AboutLibrariesmikepenz/AboutLibraries

Automatically collects Gradle project dependencies and licenses, providing UI components for Android and Compose Multiplatform.

OpenPDFLibrePDF/OpenPDF

An open-source Java library for creating, editing, rendering, and encrypting PDF documents, including HTML-to-PDF conversion.