Kotlin ORG

Library support for Kotlin coroutines

Official Kotlin library for writing asynchronous code in a readable, sequential style, lets apps fetch data or do slow work in the background without freezing the screen.

Kotlin multiplatform / multi-format serialization

KotlinX multiplatform date/time library

Kotlin Evolution and Enhancement Process

Pleasant Android application development

Deprecated Kotlin library that let Android developers build UIs, run SQLite queries, and use coroutines directly in Kotlin code instead of XML.

API documentation engine for Kotlin

Kotlin Language Server and plugin for Visual Studio Code

Various examples for Kotlin

Kotlin workshop

This is an open-source, mobile, cross-platform application built with Kotlin Multiplatform Mobile. It's a simple RSS reader, and you can download it from the App Store and Google Play. It's been designed to demonstrate how KMM can be used in real production projects.

Kotlin DSL for HTML

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High-level Deep Learning Framework written in Kotlin and inspired by Keras

Kotlin multiplatform I/O library

Examples for coroutines design in Kotlin

Immutable persistent collections for Kotlin

Kotlin kernel for Jupyter/IPython

Kotlin Full-stack Application Example

Example of Kotlin multiplatform project

The idiomatic way to use atomic operations in Kotlin

Add asynchronous RPC services to your multiplatform applications.

Kotlin DataFrame: typesafe in-memory structured data processing for JVM

Public API management tool

Pure Kotlin implementation of a generic CLI parser.

A collection of AI agent skills useful for projects using Kotlin language

Kotlin plotting library.

Multidimensional array library for Kotlin

Environment analysis tool

Kotlin Multiplatform app template with shared UI

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Kotlin multiplatform benchmarking toolkit

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Kotlin Language Interactive Shell

JetBrains Kotlin Workshop Material

Converter of <any kind of declarations> to Kotlin external declarations

Examples with Kotlin/Wasm

Gradle Kotlin (http://kotlinlang.org) plugin for frontend development

This projects gives Kotlin bindings and several extensions for Apache Spark. We are looking to have this as a part of Apache Spark 3.x

The sources of Kotlin by Example.

Kotlin Language Specification:

Code samples from the "Kotlin in Action" book

Examples of Kotlin Scripts and usages of the Kotlin Scripting API

No description.

Kotlin bindings for NumPy

Kotlin source code documentation management tool

ts2kt is officially deprecated, please use https://github.com/Kotlin/dukat instead. // Converter of TypeScript definition files to Kotlin external declarations

Work-in-progress notes for the Kotlin style guide

A small application built with Anko DSL

Full-stack demo application written with Kotlin MPP

Kotlin Multiplatform app template with native UI

A collection of Kotlin-based examples featuring AI frameworks such as Spring AI, LangChain4j, and more — complete with Kotlin notebooks for hands-on learning.

Kotlin external declarations for using the Node.js API from Kotlin code targeting JavaScript

Kotlin Plugin for Eclipse

Kotlin browser API

Kotlin to Swift technology preview

Lightweight library allowing to introspect basic stuff about Kotlin symbols

No description.

Best practices to consider when writing an API for your library

Gradle plugin for NPM package publishing. Allows for arbitrary publishing as well as seamless integration with Kotlin JS/KMP plugins.

This is the project to verify and investigate performance issues in Kotlin and standard library.

Kotlin Multiplatform library that generates JSON Schemas from your methods and classes both at compile-time via Kotlin Symbol Processing(KSP) and at runtime via reflection or kotlinx.serialization.

Gradle plugin for publishing of Kotlin libs

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Tokenization and parsing Kotlin code using the ANTLR Kotlin grammar

A mostly-empty template to get started creating a Kotlin/Native project.

Kotlin Koans for Educational Plugin and play.kotl.in

This repo demonstrates how to use KotlinDL for neural network inference on Android devices.

This project represents the case when Cocoapods dependencies are added in Kotlin and there is no existing Xcode project

Code samples for the second edition of "Kotlin in Action".

Library descriptors for Kotlin kernel for Jupyter

Extension and top-level functions to use JDK7/JDK8 features in Kotlin 1.0

No description.

Obsolete: check https://github.com/Kotlin/kotlin-koans-edu for the latest version.

External declarations for Kotlin/JS

Measure Kotlin K2 compiler performance in your repository

A template repository for Compose Multiplatform with Kotlin/Wasm target

An example `wasi:http` server component written in Kotlin

Materials for a full-day workshop on Kotlin Coroutines

Collaborative TODO List with Spring, Kotlin/JS and RSocket

WordPress plugin which allows to embed interactive Kotlin playground to any post via [kotlin] shortcode

This project is intended to demonstrate how to connect Kotlin library to Xcode project with several targets: iOS, macOS, tvOS, watchOS

A template repository for Kotlin/Wasm on browser

Version history for Kotlin Multiplatform Wizard projects.

A template repository for Kotlin/Wasm with WASI

E2E Sample

Implementation/translation of the react-redux Todo List example project with Kotlin/JS IR BE

Kotlin Analysis API Documentation

Kotlin Multiplatform Collection of Benchmarks focused on Kotlin/Wasm performance

AppCode helper for Kotlin/Native and Xcode

Sample project accompanying the second edition of "Kotlin in Action". JSON serialization/deserialization library for Kotlin data classes

A JetBrains ecosystem plugin for Declarative Gradle covering JVM ecosystem and Kotlin Multiplatform

A VS Code extension which provides one-click, review-before-you-commit Java to Kotlin migration inside VS Code.

No description.

The project is a small Conference CMS application showcasing a full-stack approach with Kotlin Multiplatform.

The project is a KMP variant of the original Spring Pet Clinic. It contains Spring Boot backend and Angular frontend that share business logic between each other.

No description.

A template repository for Kotlin/Wasm on Node.js

Dokka plugin quickstart template with pre-configured dependencies and publishing

This integration enables direct experimentation with IntelliJ Platform APIs within the active IntelliJ IDEA runtime, eliminating traditional plugin development barriers.

Compose Multiplatform iOS Sample with CocoaPods

Adds useful inspections, intentions, and quick-fixes for working with Kotlin/JS projects.

Examples and templates for various use cases of Kotlin/JS

This repository is Proof of Concept of Kotlin/Native integration into Swift Build build system

This project demonstrates how to use a CocoaPods dependency in a Kotlin Multiplatform (KMP) project, including how to bridge a pure Swift library into Kotlin code using a custom CocoaPods wrapper. It also includes an iOS app to showcase the integration in action.

Ktor client and serialization for Kotlin Jupyter Notebooks

A language binding generator for WebAssembly interface types

Kotlin Language support for Apache Spark

A simple project (created by the Kotlin Multiplatform wizard) containing shared business logic between Android, iOS, and Web native UI implementations.

Kotlin ANTLR grammar converter to XML for the Kotlin website or text file

Experimental library providing some helper functions and extensions for creating Swing user interfaces.

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A mostly-empty template to get started creating a Kotlin/JS project.

🚀 Plugin for Android Studio And IntelliJ Idea to generate Kotlin data class code from JSON text ( Json to Kotlin )

Experimental library providing some helper functions and extensions for working with JDBC in Kotlin.

Simple (and not that simple) integrations for Kotlin Notebook

Kotlin grammar ANTLR sources (under GPLv2)

SwiftUI Firebase KMP Sample

This project is intended to demonstrate the connection of two Kotlin libraries to existing Xcode project through Cocoapods

Examples repository for kotlinlang.org

Kotlin/JS with dukat and Type Script

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.

No description.

Redirect to kotlinlang.org and favicon/title provider for kotlin.github.io/* websites.

Skill for updating Kotlin projects for Android Gradle Plugin 9.0

An http server compiled to a Wasm component using Kotlin/Wasm, run in a custom hyperlight fork.

AI-assisted migration of Kotlin Multiplatform (KMP) projects from CocoaPods to Swift Package Manager import

A project demonstrating publishing KMP library as a TypeScript library to NPM

Spectacular Test Runner for JavaScript

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Kotlin to TypeScript technology preview

Hyperlight-Wasm fork to enable Kotlin/Wasm components to be executed. Not kept up-to-date!

No description.