Best Open Source kotlin Libraries
A curated list of the most popular GitHub repositories tagged with kotlin. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1justjavac/free-programming-books-zh_CN
:books: 免费的计算机编程类中文书籍，欢迎投稿
#2JetBrains/kotlin
The Kotlin Programming Language.
#3square/okhttp
Square’s meticulous HTTP client for the JVM, Android, and GraalVM.
#4gkd-kit/gkd
基于无障碍，高级选择器，订阅规则的自定义屏幕点击安卓应用 | An Android APP with custom screen tapping based on Accessibility, Advanced Selectors, and Subscription Rules
#5square/leakcanary
A memory leak detection library for Android.
#6yuliskov/SmartTube
Browse media content with your own rules on Android TV
#7NativeScript/NativeScript
⚡ Write Native with TypeScript ✨ Best of all worlds (TypeScript, Swift, Objective C, Kotlin, Java, Dart). Use what you love ❤️ Angular, React, Solid, Svelte, Vue with: iOS (UIKit, SwiftUI), Android (View, Jetpack Compose), Flutter and you name it compatible.
#8JunkFood02/Seal
🦭 Video/Audio Downloader for Android, based on yt-dlp
#9tipsy/profile-summary-for-github
Tool for visualizing GitHub profiles
#10mihonapp/mihon
Free and open source manga reader for Android
#11JetBrains/compose-multiplatform
Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
#12Tencent/MMKV
An efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, POSIX, and OHOS.
#13gradle/gradle
Adaptable, fast automation for all
#14sqlc-dev/sqlc
Generate type-safe code from SQL
#15open-ani/animeko
集找番、追番、看番的一站式弹幕追番平台，云收藏同步 (Bangumi)，离线缓存，BitTorrent，弹幕云过滤。100% Kotlin/Compose Multiplatform
#16mamoe/mirai
高效率 QQ 机器人支持库
#17wasabeef/glide-transformations
An Android transformation library providing a variety of image transformations for Glide.
#18InsertKoinIO/koin
Koin - a pragmatic lightweight dependency injection framework for Kotlin & Kotlin Multiplatform
#19iSoron/uhabits
Loop Habit Tracker, a mobile app for creating and maintaining long-term positive habits
#20JetBrains/Exposed
Kotlin SQL Framework
#21square/okio
A modern I/O library for Android, Java, and Kotlin Multiplatform.
#22bitwarden/android
Bitwarden mobile apps (Password Manager and Authenticator) for Android.
#23orhanobut/dialogplus
Advanced dialog solution for android
#24WooVictory/Ready-For-Tech-Interview
💻 신입 개발자로서 지식을 쌓기 위해 공부하는 공간 👨💻
#25android10/Android-CleanArchitecture-Kotlin
This is a movies sample app in Kotlin, which is part of a serie of blog posts I have written about architecting android application using different approaches.
#26AlmasB/FXGL
Java / JavaFX / Kotlin Game Library (Engine)
#27jellyfin/jellyfin-androidtv
Android TV Client for Jellyfin
#28owncloud/android
:phone: The ownCloud Android App
#29sameerasw/essentials
Essential tools and mods for Android nerds
#30TencentBlueKing/bk-ci
蓝鲸持续集成平台(蓝盾)
#31SimonSchubert/LinuxCommandLibrary
2M+ app downloads, 500k+ monthly website visitors, Linux basics, tips and formatted man pages
#32sceneview/sceneview
3D & AR SDK for Android (Jetpack Compose + Filament), Apple (SwiftUI + RealityKit), Web, Flutter and React Native. Opens glTF/GLB, 3MF, STL, OBJ and PLY on Android and USDZ on Apple, at real size in AR. Assistant-ready: in-repo MCP server, AGENTS.md and llms.txt — no assistant-specific setup.
#33chrisbanes/skills
Skills for Kotlin, Jetpack Compose, and Android development
#34LUC4N3X/Levyra-deepsound
Open-source music player for Android and Windows with no accounts or tracking. Built for quick discovery, synced lyrics, radio, and rich artwork ♫
#35sk2andy/candy-browser
Gesture-first Android browser with Material 3 Expressive design and local privacy tools
#36wireapp/wire-android
🤖 Wire client for Android
#37huarangmeng/latex
Compose Latex
#38centralsut/Dark-Vision-Server
TheDarkApp API 2026: Night Vision Training Backend Server for Mobile Apps
#39huarangmeng/Markdown
Compose Markdown