Kotlin is a statically typed programming language developed by JetBrains, designed to interoperate fully with Java and primarily aimed at modern Android development. Boasting a rich set of features, Kotlin offers null safety, concise syntax with type inference, and functional programming capabilities that enhance code readability and maintainability. As a Java Virtual Machine (JVM) language, it allows for seamless integration with existing Java codebases, making it relatively straightforward for developers to adopt in Android projects. Kotlin's popularity is bolstered by official support from Google, encouraging developers to leverage its expressive power for crafting intuitive Android applications. Additionally, Kotlin Multiplatform enables code sharing between mobile, web, and desktop applications, promoting an efficient, unified development experience.
View the most prominent open source Kotlin projects in the list below. Click on a specific project to view its alternative or complementary packages. Make comparisons and find the best package for your app.
- 免费的计算机编程类中文书籍，欢迎投稿☆116,517Jul 15, 2024Updated last year
- The Kotlin Programming Language.☆52,516Updated this week
- Square’s meticulous HTTP client for the JVM, Android, and GraalVM.☆46,919Updated this week
- 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 Rul…☆37,394Mar 28, 2026Updated last week
- A memory leak detection library for Android.☆29,916Mar 24, 2026Updated last week
- Browse media content with your own rules on Android TV☆29,280Updated this week
- ⚡ Write Native with TypeScript ✨ Best of all worlds (TypeScript, Swift, Objective C, Kotlin, Java, Dart). Use what you love ❤️ Angular, R…☆25,483Updated this week
- 🦭 Video/Audio Downloader for Android, based on yt-dlp☆25,422Mar 25, 2026Updated last week
- The Google I/O Android App☆21,714Jan 5, 2023Updated 3 years ago
- A fully functional Android app built entirely with Kotlin and Jetpack Compose☆20,898Updated this week
- Tool for visualizing GitHub profiles☆19,945Feb 22, 2026Updated last month
- 😍 A beautiful, fluid, and extensible dialogs API for Kotlin & Android.☆19,627Feb 6, 2023Updated 3 years ago
- Free and open source manga reader for Android☆19,596Updated this week
- Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.☆18,953Updated this week
- An efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, POSIX, and OHOS.☆18,538Updated this week
- Adaptable, fast automation for all☆18,467Updated this week
- Generate type-safe code from SQL☆17,275Updated this week
- Pleasant Android application development☆15,805Dec 5, 2019Updated 6 years ago
- 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☆16,468Mar 26, 2026Updated last week
- 高效率 QQ 机器人支持库☆14,869Sep 23, 2024Updated last year
- Framework for quickly creating connected applications in Kotlin with minimal effort☆14,339Updated this week
- A Download Manager that speeds up your downloads☆14,201Feb 26, 2026Updated last month
- Library support for Kotlin coroutines☆13,715Updated this week
- Generate types and converters from JSON, Schema, and GraphQL☆13,690Oct 27, 2025Updated 5 months ago
- Free implementation of Play Services☆12,800Updated this week
- Your Cheat Sheet For Android Interview - Android Interview Questions and Answers☆12,301Mar 21, 2026Updated 2 weeks ago
- No clever tagline needed.☆12,488Updated this week
- 🖼️ Image Toolbox is a powerful app for advanced image manipulation. It offers dozens of features, from basic tools like crop and draw to…☆12,361Updated this week
- Image loading for Android and Compose Multiplatform.☆11,753Updated this week
- An Android Animation library which easily add itemanimator to RecyclerView items.☆11,567Dec 30, 2023Updated 2 years ago
- An alternative frontend for YouTube, for Android.☆11,653Mar 28, 2026Updated last week
- android 4.4以上沉浸式状态栏和沉浸式导航栏管理，适配横竖屏切换、刘海屏、软键盘弹出等问题，可以修改状态栏字体颜色和导航栏图标颜色，以及不可修改字体颜色手机的适配，适用于Activity、Fragment、DialogFragment、Dialog，PopupWin…☆11,467Mar 25, 2022Updated 4 years ago
- A curated list of awesome Kotlin related stuff Inspired by awesome-java.☆11,358Updated this week
- A declarative API to handle Android runtime permissions.☆11,197Nov 10, 2023Updated 2 years ago
- A configuration as code language with rich validation and tooling.☆11,108Updated this week
- AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.☆10,931Updated this week
- IdeaVim – A Vim engine for JetBrains IDEs☆10,178Updated this week
- Production ready toolkit to run AI locally☆10,373Mar 27, 2026Updated last week
- An Android transformation library providing a variety of image transformations for Glide.☆9,910Mar 8, 2022Updated 4 years ago
- Koin - a pragmatic lightweight dependency injection framework for Kotlin & Kotlin Multiplatform☆9,881Mar 18, 2026Updated 2 weeks ago