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

116,333

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#2JetBrains/kotlin

The Kotlin Programming Language.

52,348Kotlin

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#3square/okhttp

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

46,890Kotlin

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#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

36,137Kotlin

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#5square/leakcanary

A memory leak detection library for Android.

29,897Kotlin

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#6yuliskov/SmartTube

Browse media content with your own rules on Android TV

28,314Java

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#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.

25,446TypeScript

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#8JunkFood02/Seal

🦭 Video/Audio Downloader for Android, based on yt-dlp

24,711Kotlin

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#9google/iosched

The Google I/O Android App

21,729Kotlin

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#10android/nowinandroid

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

20,619Kotlin

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#11tipsy/profile-summary-for-github

Tool for visualizing GitHub profiles

19,943Vue

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#12afollestad/material-dialogs

😍 A beautiful, fluid, and extensible dialogs API for Kotlin & Android.

19,642Kotlin

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#13JetBrains/compose-multiplatform

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

18,829Kotlin

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#14mihonapp/mihon

Free and open source manga reader for Android

18,683Kotlin

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#15Tencent/MMKV

An efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, POSIX, and OHOS.

18,487C++

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#16gradle/gradle

Adaptable, fast automation for all

18,384Groovy

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#17mamoe/mirai

高效率 QQ 机器人支持库

14,863Kotlin

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#18ktorio/ktor

Framework for quickly creating connected applications in Kotlin with minimal effort

14,292Kotlin

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#19Kotlin/kotlinx.coroutines

Library support for Kotlin coroutines

13,703Kotlin

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#20glideapps/quicktype

Generate types and converters from JSON, Schema, and GraphQL

13,633TypeScript

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#21amir1376/ab-download-manager

A Download Manager that speeds up your downloads

13,530Kotlin

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#22microg/GmsCore

Free implementation of Play Services

12,316Java

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#23amitshekhariitbhu/android-interview-questions

Your Cheat Sheet For Android Interview - Android Interview Questions and Answers

12,261Java

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#24LawnchairLauncher/lawnchair

No clever tagline needed.

12,195Java

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#25wasabeef/glide-transformations

An Android transformation library providing a variety of image transformations for Glide.

9,922Java

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#26InsertKoinIO/koin

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

9,832Kotlin

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#27iSoron/uhabits

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

9,647Kotlin

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#28JetBrains/Exposed

Kotlin SQL Framework

9,162Kotlin

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#29RunanywhereAI/runanywhere-sdks

Production ready toolkit to run AI locally

9,151C++

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#30square/okio

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

8,987Kotlin

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#31atinfo/awesome-test-automation

A curated list of awesome test automation frameworks, tools, libraries, and software for different programming languages. Sponsored by https://zapple.tech and https://automated-testing.info

6,977

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#32junit-team/junit-framework

✅ The programmer-friendly testing framework for Java and the JVM

6,970Java

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#33rainxchzed/Github-Store

A free, open-source app store for GitHub releases — browse, discover, and install apps with one click. Powered by Kotlin and Compose Multiplatform for Android & Desktop (Linux, MacOS, Windows).

6,906Kotlin

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