A better build tool for Java, Scala and Kotlin: Simpler than Maven, easier than Gradle, with 3-6x faster dev workflows than other JVM build tools

Mesh gradient editor in Compose Desktop

Compose-First Power Packs for Compose Multiplatform and Jetpack Compose

The Official Conference App for DroidKaigi 2025

Jetpack Compose Liquid Glass effect

TechBoosterで利用しているRe:VIEWのテンプレート（B5/A5/電子書籍）を公開しています

A statically typed functional programming language.

Plugin for parsing and managing the Changelog in a "keep a changelog" style.

A migration tool that automates the conversion of Android Compose projects to KMP

A generic Value Object library inspired by Zod for Kotlin. No dependence 3rd party libraries.

An open-source AI agent that brings the power of Gemini directly into your terminal.

3D and AR for Android using Jetpack Compose and Layout View, powered by Google Filament and ARCore

A testing library for kotlinx.coroutines Flow

Beautiful metronome for Android with a powerful Wear OS experience

Kotlin Language Server and plugin for Visual Studio Code

We all edit.

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

Sample app for Androidify

The JavaScript / Wasm runtime that powers Cloudflare Workers

Build terminal UI in Kotlin using Jetpack Compose

Displaying callout with Jetpack Compose

The official Kotlin SDK for Model Context Protocol servers and clients. Maintained in collaboration with JetBrains

GitHub's official MCP Server

A curated list of awesome Kotlin related stuff Inspired by awesome-java.

A Kotlin Multiplatform Client for Supabase.

A high-level build system based on llbuild, used by Xcode, Swift Playground, and the Swift Package Manager

Multiplatform command line interface parsing for Kotlin

A markup-based typesetting system that is powerful and easy to learn.