Kotlin | The Kotlin Blog

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Build software better, together

A Material 3 YouTube Music client for Android

Build software better, together

quasar/quasar-kotlin at master · puniverse/quasar

Kotlin Programming Language

Manga reader for Android

A Android Application for share DeviceOwner

An Illustrated Guide

A syntax highlighting template for the Kotlin language in LaTeX listings.

Simplest XML builder for Kotlin

:sunny: Kotlin extension to pluralize and singularize strings

Kotlin Cheat Sheet

Vert.x for Kotlin

An intuitive Date extensions in Kotlin.

:video_game: JVM game engine based on Swing/JavaFX.

A small artefact to build json with kotlin

Kotlin Standard Functions cheat-sheet

Fluent Assertion-Library for Kotlin

Mongo BSON support for kotlinx.serialization.

A framework designed around Kotlin providing Restful HTTP Client, JDBC DSL, Loading Cache, Configurations, Validations, and more

Distributed lock service | 分布式锁服务

IntelliJ IDEA Community Edition & IntelliJ Platform

Multiplexed, coroutine-powered reliable UDP for Kotlin using fountain codes

Firefly is an asynchronous web framework for rapid development of high-performance web application.

Kotlin Multiplatform MQTT client & embeddable and standalone broker

Mustache template engine in kotlin multiplatform

Simple and powerful DI for kotlin multiplatform

Naive one-pass recursive descent, scannerless parser framework for Kotlin

Kotlin NBT library for kotlinx.serialization

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

HttpMocker is a simple HTTP mocking library written in Kotlin to quickly and easily handle offline modes in your apps

A rule-based entity management library written in Kotlin

A DSL ORM library for Kotlin Multiplatform.

YAML support for kotlinx.serialization

Kotlin DSL http client

BRVAH:Powerful and flexible RecyclerAdapter

Kwery is an SQL library for Kotlin

Learn Kotlin - Best Kotlin Tutorials | Hackr.io

Kotlin for Java Developers Course

Framework for quickly creating connected applications in Kotlin with minimal effort

Kotlin Web Framework for the JVM

A minimalist web framework for building REST APIs in Kotlin/Java.

sponge is a website crawler and links downloader command-line tool

Read-only mirror of Grayjay repo for issue tracking

Doodle | Doodle

A Kotlin multiplatform library for arbitrary precision arithmetics

Kotlin Discussions

http4k - a functional Kotlin HTTP toolkit

Stove: The easiest way of writing e2e tests for your JVM back-end API with Kotlin

Kotlin Notebook - IntelliJ IDEs Plugin | Marketplace

LinkedIn Login, Sign in | LinkedIn

An Android application for streaming music from YouTube Music.

Kotlin for Android Developers

拷贝漫画的第三方APP，优化阅读/下载体验

Adds themed icons to Lawnchair.

Kotlin DSL for HTML

自动跳过APP开屏广告

A library that tests if the implementation of a REST-API meets its specification.

Kotlin Coroutines

A Kotlin compiler plugin that removes the `copy` method of data classes.

Hands-On-Design-Patterns-with-Kotlin, published by Packt

Pure Kotlin GraphQL implementation

A curated list of companies using Kotlin

Small library to parse and work with recipes from Chefkoch.de

An acceptance test library for Kotlin

gRPC Kotlin Coroutines, Protobuf DSL, Scripting for Protoc

Modern gRPC back-end development framework base on JVM.

Alibaba Java Coding Guidelines pmd implements and IDE plugin

Kotlin DSL for Selenium. Provide a possibility to write tests in Kotlin type-safe builders style

AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.

Painless Mobile UI Automation

Bitwarden mobile app for Android.

REST framework written in pure Kotlin

Kotlin - freeCodeCamp.org

DNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.

A Hanime1.me Application for Android.

Introduction to Kotlin Programming

Advanced Kotlin Programming

Kotlin port of RandomGen

A Kotlin framework for building web applications in Javascript.

🚀 The Rapid and Delightful Kotlin Web Framework. Easy, elegant, and productive!

Head First Kotlin

Balin is an automation library for Kotlin. It's basically a Selenium-WebDriver wrapper inspired by Geb.

Kotlin DSL for Junit5

🧩 Patches for ReVanced

Kotlin multiplatform / multi-format serialization

IdeaVim – A Vim engine for JetBrains IDEs

:iphone: Home Assistant Companion for Android

Html templating library for kotlin

Functional Programming in Kotlin

A nice parser combinator library for Kotlin

Lightweight JavaFX Framework for Kotlin

Android application to analyze WiFi signals.

A Spark DSL in idiomatic kotlin // dependency: com.sparkjava:spark-kotlin:1.0.0-alpha

Spring support libraries for Kotlin

A shadowsocks client for Android

Mathematical expression engine written in Kotlin, running on JVM.

Test the shape of your functions!

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

A library to generate HTML in Kotlin.

A web crawling framework written in Kotlin

Kotlin in Action, Second Edition

APKUpdater is an open source tool that simplifies the process of finding updates for your installed apps.

An open-source auto clicker on images for Android

Model Forge is a library to automate model generation for automated testing

kotlin multiplatform implementation/bindings of opentest4j

Library support for Kotlin coroutines

Android Mobile app to rule all Flipper's family

Official Jetpack Compose samples.

A JMock wrapper for Kotlin

Build Asynchronous Servers and Clients in Kotlin

Search | Packt Subscription

Search | Packt Subscription

Search | Packt Subscription

Universal Pasteboard Across Devices

Generate unit testing boilerplate from kotlin files.

BDD assertion library for Kotlin

Effective Kotlin

Getting Started

Ockero: Kotlin OpenGl Game Engine

GraphQL toolkit for Kotlin.

The Official Conference App for DroidKaigi 2024

Static code analysis for Kotlin

Testing tools for kotlinc and kapt

Opensource automated insulin delivery system (closed loop)

provides metadata for chains

Zeko SQL Builder is a high-performance lightweight SQL query library written for Kotlin language

Kotlinwind CSS

Asynchronous web framework for Kotlin. Create REST APIs in Kotlin easily with automatic Swagger/OpenAPI doc generation

The modular web framework for Java and Kotlin

A simple, rational music player for android

A collection of samples to discuss and showcase different architectural tools and patterns for Android apps.

From Java to Kotlin Cheat Sheet

Modern Reactive CQRS Architecture Microservice development framework based on DDD and EventSourcing | 基于 DDD & EventSourcing 的现代响应式 CQRS 架构微服务开发框架

Easily build reactive web-apps in Kotlin based on flows and coroutines.

SpringMockK: MockBean and SpyBean, but for MockK instead of Mockito

Tivi is a TV show tracking Android app, which connects to trakt.tv

DataBackup for Android 7.0+

Selfie JVM Snapshot Testing

🖼️ Image Toolbox is an powerful picture editor, which can crop, apply filters, add some drawing, erase background, edit EXIF or even create PDF file

A collection of samples of different Android OS platform APIs.

An assertion library for Kotlin

KoMock - Simple HTTP/Consul/SpringConfig http server framework written in Kotlin. Wiremock use cases

A utility to make Kotlin/Java tests random yet reproducible

Joda Time and Java 8 Time Extensions for Kotlin

Kotlin in Action

基于无障碍，高级选择器，订阅规则的自定义屏幕点击 Android 应用 | An Android APP with custom screen tapping based on Accessibility, Advanced Selectors, and Subscription Rules

Media server for comics/mangas/BDs/magazines/eBooks with API, OPDS and Kobo Sync support

Kotlin Evolution and Enhancement Process

assertions for kotlin inspired by assertj

Writing full-stack statically-typed web apps on JVM at its simplest

Hamcrest for Kotlin

Kotlin Serverless Framework

Kotlin multiplatform benchmarking toolkit

Kotlin/Java library and cli tool for scraping posts and media from various sources with neither authorization nor full page rendering (Facebook, Instagram, Twitter, Youtube, Tiktok, Telegram, Twitch, Reddit, 9GAG, Pinterest, Flickr, Tumblr, Coub, Vimeo, IFunny, VK, Odnoklassniki, Pikabu)

Validation library. Fluent syntax in Java, mini DSL in Kotlin

Kotlin plugin for Vim. Featuring: syntax highlighting, basic indentation, Syntastic support

Port of a popular ruby faker gem written in kotlin. Generate realistically looking fake data such as names, addresses, banking details, and many more, that can be used for testing and data anonymization purposes.

A truly hackable editor: simple, lightweight, understandable

Repository for learning Kotlin Flow API

Lenses for Kotlin

Fluent assertions for Kotlin

Monads for Kotlin

A simple Kotlin library to Query over Json Data.

Adds syntax highlighting to Kotlin files in Atom

RBAC-based And Policy-based Multi-Tenant Reactive Security Framework | 基于 RBAC 和策略的多租户响应式安全框架

A multiplatform WebGPU 2D game framework written in Kotlin. Build your own game engine on top.

Kotlin language support for VS Code

Object notation in pure Kotlin!

Gson TypeAdapter & Factory generator for Kotlin data classes

A fast, Kotlin-native Markdown parser

A private messenger for Android.

A library for testing Kotlin and Java annotation processors, compiler plugins and code generation

A small wrapper for the Kotlin compiler that can be used to execute .kts scripts

A Kernel based root solution for Android

Design Patterns implemented in Kotlin

Detection of design principle violations in Kotlin as a plugin to detekt.

URLSome - URL builder library for Kotlin

Spring Data with Requery

Kotlin coroutine support for MongoDB built on top of the official Reactive Streams Java Driver

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

Thelema - 3D graphics engine, written in Kotlin. Based on sources of libGDX.

Type-safe dimensional analysis and unit conversion in Kotlin.

simondankelmann/Bluetooth-LE-Spam

Simplest & Powerful Testing Framework For Kotlin. No annotations!

🇧🇷 Validador simples para o documento CPF (Cadastro de Pessoa Física) | Simple Brazilian taxpayer document (CPF) validator

Android Database - first and fast, lightweight on-device vector database

Kotlin wrapper of mbedtls also for java

A "batteries included" port of Reduxjs for Kotlin+Android

Kotlin Language Interactive Shell

Library for executing .kts files from regular Kotlin code

LevelDB client for Kotlin and/or Java 8+

Secure Kotlin scripting and binary lambda-scripts

Sublime Text 2 Package for Kotlin Programming Language

Percentage calculations made easy

IBM Q Experience Kotlin toolkit - Kotlin library to interact and write assembly code for IBM Quantum computers

Progress for Kotlin

Authoring GitHub Actions workflows in Kotlin. You won't go back to YAML!

RxJava bindings for Kotlin

Querylight is an in memory, kotlin multi platform text indexing library that implements tf/idf and a minimal query language. Great for client side search in web apps, android or other Kotlin apps.

A handy Database access library in Kotlin

Math conventions to reduce boilerplate code

Multiplatform kotlin string case conversion and detection library.

Minimalistic and multiplatform logging for Kotlin

The Kotlin Programming Language.

forkhandles/tuples4k at trunk · fork-handles/forkhandles

Kotlin extensions for Java 8 java.time API

SonarLint for IntelliJ

Portable validations for Kotlin

The easiest HTTP networking library for Kotlin/Android

A concise and lightweight Kotlin DSL to build JSON objects and render their String representations

🐫🐍🍢🅿 Multiplatform Kotlin library to convert strings between various case formats including Camel Case, Snake Case, Pascal Case and Kebab Case

KMMBridge is a tool that helps publish Kotlin Multiplatform (KMP) Xcode binaries for use from Swift Package Manager (SPM) and CocoaPods.

A lightweight ORM framework for Kotlin with strong-typed SQL DSL and sequence APIs.

Build software better, together

Ebean ORM

API documentation engine for Kotlin

A high-performance Kotlin Native database driver for PostgreSQL, MySQL, and SQLite.

This library provides a fluent DSL for querying spring data JPA repositories using spring data Specifications (i.e. the JPA Criteria API), without boilerplate code or a generated metamodel.

Language extension for notepad++

Kotlin based JHipster

Kotlin DSL for Pi4J V2

Functional companion to Kotlin's Compiler

Module that adds support for serialization/deserialization of Kotlin (http://kotlinlang.org) classes and data classes.

NoSQL database query and access library for Kotlin

requery - modern SQL based query & persistence for Java / Kotlin / Android

Idiomatic persistence layer for Kotlin

An Object Graph Mapping Library for Kotlin and Gremlin

Do comprehensions for Kotlin and 3rd party libraries [STABLE]

Easy PDF generation with HTML & CSS using Chromium or Google Chrome

Lightweight library allowing to introspect basic stuff about Kotlin symbols

Port of Adobe's XMP SDK for Kotlin Multiplatform

kotlin typesafe builder for xpath

🌶 A simple Kotlin web framework inspired by Clojure's Ring.

Textmate bundle for the Kotlin programming language

Kotlin compiler plugin to hide secret data

Lightweight logging library for Kotlin/Multiplatform. Supports Android, iOS, JavaScript and plain JVM environments.

A powerful in-process event dispatcher based on Kotlin and Coroutines.

Simple multiplatform logging in Kotlin

Multiplaform kotlin library for calculating text differences. Based on java-diff-utils, supports JVM, JS and native targets.

Java & Kotlin Async DataBase Driver for MySQL and PostgreSQL written in Kotlin

🦄Intuitive and powerful human-readable Kotlin DSL for IPCs & turning anything into a message receiver / broadcaster🦄

基于Kotlin的整合代码框架，为标准库和其他框架提供各种有用的扩展。Integrated code framework based on Kotlin, provides many useful extensions for standard library and some frameworks.

A modern MAVLink library for Kotlin Multiplatform.

Kovenant. Promises for Kotlin.

Kotlin wrapper for StAX

A multiplatform Result monad for modelling success or failure operations.

KorGE Game Engine. Multiplatform Kotlin Game Engine

Gradle Script plugin to generate documentation by Dokka documentation engine in Javadoc or other formats for Java, Kotlin, Android and non-Android projects. It's very easy, you don't need to add to dependencies section additional classpath or think about compatibility issues, you don't need additional repositories also.

Kotliny Network is a simple, powerful and lightweight Kotlin Multiplatform Network Client.

A state container for Java & Kotlin, inspired by Redux & Elm

Zircon is an extensible and user-friendly, multiplatform tile engine.

A simple and modern Java and Kotlin vert.x web framework

Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.

forkhandles/parser4k at trunk · fork-handles/forkhandles

A Kotlin Multiplatform porting for MMKV.

Intuitive, type-safe units of measure

Kotlin Cheat Sheet

The invisible REST and web framework

[deprecated] KMongo - a Kotlin toolkit for Mongo

The official MongoDB drivers for Java, Kotlin, and Scala

Simple, Expressive, Extensible Testing for Kotlin on the JVM

Kotlin framework for conversational voice assistants and chatbots development

Kotlin Symbol Processing API

Kotlin/kotlinx-kover

The modelling for success/failure of operations in Kotlin and KMM (Kotlin Multiplatform Mobile)

Kotlin DSL for easier RxJava testing.

validator for kotlin json serialization

Learning Programming With Kotlin

A JavaScript Object Notation library for Kotlin JVM.

⚠️ Stop saying "you forgot to …" in code review

Helper to upload Gradle Android Artifacts, Gradle Java Artifacts and Gradle Kotlin Artifacts to Maven repositories (JCenter, Maven Central, Corporate staging/snapshot servers and local Maven repositories).

Image metadata manipulation library for Kotlin Multiplatform

A REST request routing layer for AWS lambda handlers written in Kotlin

Λrrow - Functional companion to Kotlin's Standard Library

A Kotlin/Java library for intelligent object mapping and conversion between objects.

A program that reformats Kotlin source code to comply with the common community standard for Kotlin code conventions.

Ksoup is a Kotlin Multiplatform library for working with HTML and XML. It's a port of the renowned Java library Jsoup.

Telegram Bot API wrapper with handy Kotlin DSL.

An anti-bikeshedding Kotlin linter with built-in formatter

Logging DSL implementation in Kotlin

Powerful, elegant and flexible test framework for Kotlin with assertions, property testing and data driven tests.

Getting Started

RxJava2 wrapper for aerospike-client-java

A JSON parser for Kotlin

nitrite-java/potassium-nitrite at master · nitrite/nitrite-java

Kotlin 1.1 async clients for sync protocols: Mysql, Postgres, Thrift, Http

A blazing fast, powerful, and very simple ORM android database library that writes database code for you.

Fixture factory in Kotlin

A Kotlin-based DSL for text adventures, with a partial replica of the classic Colossal Cave as an example.

Kt. Academy

Predictable state container for Kotlin apps

forkhandles/result4k at trunk · fork-handles/forkhandles

GraphQL request string builder written in Kotlin

Life is too short to google for dependencies and versions

A named {{ tag }} template processor in kotlin.

Using Mockito with Kotlin

Simple unit conversion library for Kotlin

A specification framework for Kotlin

Kotlin implementation of Groovy Truth

SQLDelight - Generates typesafe Kotlin APIs from SQL

Simple parser combinator library for Kotlin

Feature-rich, efficient, and highly customizable plugins for your Multiplatform Ktor Server or Client

Snapshot Testing framework for Kotlin.

:rocket:  A strongly-typed, caching GraphQL client for the JVM, Android, and Kotlin multiplatform.

Language Savant. If your repository's language is being reported incorrectly, send us a pull request!

Guice DSL extensions for Kotlin

Libraries for running GraphQL in Kotlin

Kotlin code completion, diagnostics and more for any editor/IDE using the Language Server Protocol

The Kotlin fake data generator library!

A simple and modern Java and Kotlin web framework

A pure Ruby code highlighter that is compatible with Pygments

tinylog is a lightweight logging framework for Java, Kotlin, Scala, and Android

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

Painless Kotlin Dependency Injection

Programming Fundamentals in Kotlin

Kotlin for Java Developers

Pure Kotlin CSV Reader/Writer

Advanced Programming in Kotlin

CS194A Android Development

An HTTP Framework

Type-safe library for work with Telegram Bot API

Unofficial Actions on Google SDK for Kotlin and Java

Hexagon is a microservices toolkit written in Kotlin. Its purpose is to ease the building of services (Web applications or APIs) that run inside a cloud platform.

Kt. Academy

Minimalist Kotlin dependency injection

The idiomatic way to use atomic operations in Kotlin

Lightweight Multiplatform logging framework for Kotlin. A convenient and performant logging facade.

JavaScript syntax highlighter with language auto-detection and zero dependencies.

KStateMachine is a powerful Kotlin Multiplatform library with clean DSL syntax for creating complex state machines and statecharts driven by Kotlin Coroutines.

Advanced Android App Architecture

Kotlin Apprentice

Scripting enhancements for Kotlin

Server-Side Development with Kotlin

Android Apprentice

Data Structures & Algorithms in Kotlin

Kotlin Course - Tutorial for Beginners

ReadHub - IntelliJ IDEs Plugin | Marketplace

Artificial Intelligence planning optimization for Kotlin

RSocket | RSocket

Awesome Kotlin - IntelliJ IDEs Plugin | Marketplace

Planning optimization made easy - Timefold

UNofficial Opengl SDK

Kotlin Multiplatform bindings to Skia

Three.js port for the JVM (desktop)

Aggregated Android news, articles, podcasts and conferences about Android Development

KickAss Configuration. An annotation-based configuration system for Java and Kotlin

Reakt is a Kotlin wrapper for facebook's React library

A simple client for overpass that uses ktor-client and kotlinx.serialization for parsing JSON responses. We are using this at FORMATION to be able to run some simple queries against OpenStreetMap.

Identify email addresses or domains names that belong to colleges or universities. Help automate the process of approving or rejecting academic discounts.

Headless Chrome DevTools Protocol Client (RxJava3 + Kotlin)

rocketraman/kotlin-web-hello-world

forkhandles/bunting4k at trunk · fork-handles/forkhandles

Multidimensional array library for Kotlin

Type-safe library for work with Telegram Bot API

Sigbla is a framework for working with data in tables, using the Kotlin programming language. It supports various data types, reactive programming and events, user input, charts, and more.

:closed_umbrella: An easy way to implement modern permission instructions popup.

A cross-platform desktop app for hashing data, written in Compose for Desktop

Kotlin multiplatform logging. High performance, composable and simple to use.

Simple multiplatform logging in Kotlin

Multiplatform text styling for Kotlin command-line applications

OPENRNDR. A Kotlin/JVM library for creative coding, real-time and interactive graphics

Grammar of Graphics for Kotlin

Multiplatform AWS SDK for Kotlin

Basic Kotlin Implementation following MVP, and using Third Party library by Natural Analytics Language

A simple Kotlin option parser

A Kotlin multiplatform coroutine-based SignalR client.

Kotlin plotting library.

A Kotlin wrapper for Typesafe Config

Analytics for Trading with NOA

A scientific computing library for Kotlin. https://kyonifer.github.io/koma

Kotlinx coroutines extensions for Java NIO.2

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

🗝️ Dotenv is a module that loads environment variables from a .env file

unsigned support for Kotlin via boxed types and unsigned operators

A cross-platform geometry library in Kotlin

Kotlin/Spring 5 PetClinic application

Multiplatform command line interface parsing for Kotlin

Structured data processing in Kotlin

JVM Open Asset Import Library (Assimp)

Barber 💈 A type safe Kotlin JVM library for building up localized, fillable, themed documents using Mustache templating

Neumorphism UI on Android with Jetpack Compose.

Quickly compile Kotlin classes (.kt) and run Kotlin scripts (.kts)

A collection of common interactive command line user interfaces written in Kotlin

Rankquest Studio is a web based tool that you can use to benchmark search relevance metrics for your search APIs.

Spring Boot Kotlin project with a REST Webservice and Spring Data

Open source Crypto Currency Tracker Android App made fully in Kotlin

A type-safe cascading configuration library for Kotlin/Java/Android, supporting most configuration formats

Spotify Web API wrapper for Kotlin, Java, JS, and Native - Targets JVM, Android, JS (browser), Native (Desktop), and Apple tvOS/iOS. Includes a Spotify Web Playback SDK wrapper for Kotlin/JS, and a spotify-auth wrapper for Kotlin/Android.

kotlin-graphics/ovr

An example of a Kotlin Ratpack app built with Gradle.

A kotlin multiplatform wrapper for libsodium, using directly built libsodium for jvm and native, and libsodium.js for js targets.

async/await for Android built upon coroutines introduced in Kotlin 1.1

Computer Vision on Android with Kotlin and Tensorflow Lite

Easy app for managing your files without ads, respecting your privacy & security

🏀 An Android app for dribbble.com

Seed project for facebook messenger bots. Vertx, Kotlin.

A Kotlin multi-platform library for graph data structures

Companion App for the book

101 examples for Kotlin Programming language.

A Kotlin Multiplatform Mobile App

High-performance, low-cost microservice governance platform. Service Discovery and Configuration Service | 高性能、低成本微服务治理平台

Kotlin DSL для разработки Telegram ботов

Demo of an asynchronous app for long-response-time web services.

Simple config properties API for Kotlin

Kodein adapters for several FaaS providers

OpenVR SDK

:cyclone: A Pokedex app using ViewModel, ViewBinding, LiveData, Room and Navigation

Example of Android project in Kotlin using MVP pattern and volley library

Android News Reader app. Kotlin Coroutines, Retrofit and Realm

Swingin’ filler text for your jet-age web page.

Kotlin workshop

A canvas you can draw on with different colors.

Intelij IDEA plugin for displaying a code mini-map similar to the one found in Sublime

📐 Visualize the dimensions of your composables on a blueprint!

A lightweight particle system for Jetpack Compose - Quarks

Type-safe Kotlin configuration by delegates

Konclik: Kotlin/Native Command Line Interface Kit

kotlin extensions to the java8 time library

Zero-overhead 2D rendering library for JOGL using Kotlin

JVM Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.

Komputation is a neural network framework for the Java Virtual Machine written in Kotlin and CUDA C.

Kotlin tooling implementation of ProjectFluent

jvm gli

A smart colored time selector. Users can select just free time with a handy colorful range selector.

A curated collection of splendid gradients made in Kotlin

Compose multiple Adapter for RecyclerView in Android

A lightweight event bus written in Kotlin and RxJava

Bot for my friends

IntelliJ plugin to limit your work-in-progress

Pomodoro timer for IntelliJ 🍅⏲

Analytics library preferably sharpened for Google Analytics

Basic samples about ViewModel component

TodoMVC implementation in React and Kotlin

A Kotlin DSL for regular expressions

Multi platform kotlin client for Elasticsearch & Opensearch with easily extendable Kotlin DSLs for queries, mappings, bulk, and more.

arbitrage finder

Nano-library which provides the ability to define typesafe (!) configuration templates for applications.

A Multiplatform Kotlin SVG image DSL.

MiXiT website

Kotlin multi platdform localization for js and jvm based on project fluent

View "injection" library for Android.

Starter for Spring Boot 2.0 Kotlin applications with configurations for Gradle, Mongo, JUnit 5 tests, logging, CircleCI and Docker compose

jvm glm

A playground to gain a wider and deeper knowledge of the libraries in the Kotlin ecosystem. Also the official sample for gradle refreshVersions.

Plugin for IntelliJ IDEs to track and record user activity

A plugin that adds errors / hints / quickfix related to checked exceptions for kotlin.

:musical_score: A materially designed music player

Android preferences made easy

Example of Android project showing integration with Kotlin and Dagger 2

Kabu generates code for complex Kotlin DSLs in less than 1 minute

Rust plugin for the IntelliJ Platform

Write your GLSL shaders in Kotlin.

A JVM implementation of the Pair Adjacent Violators algorithm for isotonic regression

Simple Kotlin and Java configuration library with recursive placeholders resolution and zero magic!

Android MVVM framework write in kotlin, develop Android has never been so fun.

Environment analysis tool

This lib implements the most common CoroutineScopes used in Android apps.

A collection of Kotlin Multiplatform cryptographic hashing functions.

RxJava wrapper for NeuroSky MindWave headsets

Android Kotlin "Virtual DOM"

SharedPreference usage made fun in Kotlin

Android utilities for easier and faster Kotlin programming.

:crystal_ball: Single file Kotlin/Java IDE features in lightweight.

📦📦Video downloader for Android - Download videos from Youtube, Facebook, Twitter, Instagram, Dailymotion, Vimeo and more than 1000 other sites

Music synthesizer, written for fun and to learn stuff

The real life Command/Ctrl + F - Android App that uses the Mobile Vision API to allow you to search for any occurrence of a text in a digital document

A premium app for managing and editing your photos, videos, GIFs without ads

A fork of our clean architecture boilerplate, this time using the Android Architecture Components

Set of extensions for Kotlin that provides Discrete math functionalities

Companion to Kotlin standard library

Multiplatform wavy slider/progress bar similar to the one in Android 13

Flexible and easy to use config library written in kotlin

Celebrate more with this lightweight confetti particle system 🎊

Dead simple EventBus for Android made with Kotlin and RxJava 2

A collection of useful Kotlin Extension

Provides the Kotlin plugin via the Gradle plugin portal, automatically depends on the standard library, and allows Kotlin library versions to be omitted

Simple android library to present an animated ferris wheel

Android Library to make SharedPreferences usage easier.

Kotlin Examples Problems

Integration Testing Kotlin Multiplatform Kata for Kotlin Developers. The main goal is to practice integration testing using Ktor and Ktor Client Mock

📒 NotyKT is a complete 💎Kotlin-stack (Backend + Android) 📱 application built to demonstrate the use of Modern development tools with best practices implementation🦸.

Currency Exchange App that displays real-time currency rates, shows a chart for any currency pair in the world to see their currency history and provides a currency converter to convert over 180 currencies implemented in MVVM Architecture using Koltin.

A simple calendar with events, tasks, customizable colors, widgets and no ads.

Nice and simple DSL for Espresso in Kotlin

Don't write a RecyclerView adapter again. Not even a ViewHolder!

Android sample with kotlin.

Examples with Kotlin/Wasm

Demo for July 2022 Kotlin Virtual User Group

Easy lightweight SharedPreferences library for Android in Kotlin using delegated properties

Stateful is a Kotlin library which makes Android application development faster and easier.

A simple android Twitter client written in Kotlin

JAlgoArena programming contest platform

A showcase music app for Android entirely written using Kotlin language

Kaffeine is a Kotlin-flavored Android library for accelerating development.

Glimpse is now further developed as a Kotlin Multiplatform project under glimpse-graphics/glimpse

Kotlin webpack loader

MVVM(Model View ViewModel) sample in Kotlin using the components ViewModel, LiveData and Retrofit library

C++ examples for the Vulkan graphics API

Kotlin client for JetBrains Space HTTP API

Kotlin library for Android

Functional Constructs for Databinding + Kotlin + RxJava

A lightweight cache library written in Kotlin

🛠️ The missing drawable toolbox for Android. Create drawables programmatically and get rid of the boring and always repeated drawable.xml files.

:pencil2: Method call logging for Kotlin Multiplatform

Ostara is a cross-platform desktop app for managing and monitoring Spring Boot applications using the Actuator API, providing comprehensive insights and effortless control.

:octocat: A demo project based on MVVM architecture and material design & animations.

Android Library that provide simpler way to achieve modularity

DSL for constructing the drawables in Kotlin instead of in XML

A simple Kotlin wrapper around Anvil.

Screen orientation detector for android

Android RecyclerView

A collaborative project to create a Free and Open Source Buddha Quotes app for Android

🔥🖼 Display images stored in Cloud Storage for Firebase using Coil

AwesomeKotlin IntelliJ Plugin

An android boilerplate project using clean architecture

Android app that shows what happened today in the history.

Screenshot Kata for Android Developers with Kotlin. The main goal is to practice UI Screenshot Testing.

TwidereProject/Twidere-Android

PSP Emulator written in Kotlin for JVM, JS and Native. Can work as PWA.

Приложение для выгрузки аудио библиотеки из ВК

Kode-First Konfiguration for Kotlin

A Kotlin DSL wrapper around the mikepenz/MaterialDrawer library.

An Android Library that provides social login for 15 platforms within by RxJava2, Kotlin and Firebase Authentication.

Kotlin/Native infrastructure

A collection of useful extension methods for Android

Kotlin-CLI - command line interface options parser for Kotlin

Clay is an Android library project that provides image trimming which is originally an UI component of LINE Creators Studio

Stepper Touch for Android based on MaterialUp submission

A simple textfield for adding quick notes without ads.

Super Heroes Kata for Android Developers in Kotlin. The main goal is to practice UI Testing.

OTPComposable is an Android library dedicated to making OTP (One Time Password) components a breeze to implement in Android apps.

LinkHub is a simple and effective link management application that can help you to easily manage your app with no ads!

Android AsyncTask wrapper library, written in Kotlin

Kotlin Full-stack Application Example

Quick photo and video camera with a flash, customizable aspect ratio.

Easy to use, high level framework in Kotlin for front-end web-development

Readhub IntelliJ Plugin

Tyzenhaus is a shared expenses tracking bot.

🎬 A demo project for The Movie DB based on Kotlin MVVM architecture and material design & animations.

An alternative YouTube front-end

Android fragment stack controller

Kotlin System Dynamics Toolkit

Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart contract technology allows businesses to transact directly, with value.

Image loading for Android and Compose Multiplatform.

Kotlin Unit Testing Examples

Mobile client for official Nextcloud News App written as Kotlin Multiplatform Project

A Bluetooth kotlin multiplatform "Cross-Platform" library for iOS and Android

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

Android Library for requesting Permissions with Kotlin Flow

🎶 Chromatic tuner app for Android

[DEPRECATED] 🔥 Unofficial Kotlin Extensions for the Firebase Android SDK.

An object oriented toolkit for MongoDB Stitch in KotlinJS

A fork of our clean architecture boilerplate using the Model-View-Intent pattern

💡🚀⭐️ A generalized adapter for RecyclerView on Android which makes it easy to add heterogeneous items to a list

Bloat-free Immediate Mode Graphical User interface for JVM with minimal dependencies (rewrite of dear imgui)

Repository with source code from http://rosettacode.org/wiki/Category:Kotlin

Advancement Utils for Android Developer written in Kotlin

Kotlin/Native interop to libui: a portable GUI library

❤️ A sample Marvel heroes application based on MVVM (ViewModel, Coroutines, Room, Repository, Koin) architecture.

An library to help android developers working easly with activities and fragments (Kotlin version)

This is a work-in-progress (🔧️) ultraviolet index viewer app for demonstrating Instant Apps + Kotlin + Dagger + MVP

Comparison among Java, Groovy, Scala, Kotlin in Android Development.

A small framework for writing client-side web-applications in Kotlin

lightningkite/kotlin-core

Kotlin native with SFML example

Kotlin TodoMVC – full-stack Kotlin application demo

Scans and solves Sudoku Puzzles from images using AI

🍞 The ultimate breadcrumbs view for Android!

A growing library of assorted data structures, algorithms and utilities for OPENRNDR

jvm-graphics-labs/learn-OpenGL

Easy Android permissions. Powered by Kotlin.

An easy and flexible way to implement loading skeletons and shimmering effects on layouts for Android.

Unofficial companion app for the game Green Hell

Android Kotlin Examples

KataContacts written in Kotlin. The main goal is to practice Clean Architecture Development

Anxiety free news reader for Android - developed using Kotlin

Powerfull Collections, Sets, Lists and Maps.

A Kotlin-based build system for the JVM.

Kotpref - Android SharedPreferences delegation library for Kotlin

StaticLog - super lightweight static logging for Kotlin, Java and Android

🎬 Modern powerful TMDB API to fetch movies and TV shows for Kotlin Multiplatform.

A Kotlin work manager library for Android with progress notifications and Hilt support.

Kotlin wrappers for Three.js

Android application compatible with ZX2C4's Pass command line application

Easily create views with a background of repeating dashes 🐝

🔎 An HTTP inspector for Android & OkHTTP (like Charles but on device)

A simple library to add custom toast to android applications.

Kotlin bindings for JS libraries.

欢乐21点

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

Let's Learn Kotlin Programming 💜 🧡

A simple way to handle remote image in Kotlin.

Free and open source Bible for Android

Gradle plugin to help with build and test of Jenkins Pipeline Shared Libraries (see https://jenkins.io/doc/book/pipeline/shared-libraries/)

🏺Create a PKCS12 TrustStore by retrieving server certificates.

Auto-generate Parcelable implementations for Java and Kotlin

A simple 'Slide to Unlock' Material widget for Android, written in Kotlin 📱🎨🦄

Simple Android Library, that provides easy way to start the Activities with arguments.

Simple server for proxy requests and host static files written in Kotlin and Undertow.

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

Easy Android logging with Kotlin and Timber

Lmgtfy Generator Open Source Android App - built to learn Kotlin, the MVP architecture, Dagger and Rx

Minimal framework for Model View Intent inspired Android applications written in Kotlin

A native version of pixi

Develop browser games in Kotlin

OkHttp Kotlin command line

It's a project that contains lessons & examples about Kotlin Programming language. 🏜️

An Android, JavaFx, JS multiplatform datavisualization library with comprehensive DSL

Plugin for publishing JVM software through NPM.

K5-compose is a sketchy port of p5.js for Jetpack Compose Desktop

🍭 Candy Crush Clone

Build software better, together

1M+ downloads Linux reference app with basics, tips and formatted man pages

A Kotlin Android library for forensics evasion & heuristics evasion that prevents your code from being tested.

A collection of useful Kotlin extension for Android

TODO API Client Kata for Kotlin Developers. The main goal is to practice integration testing using MockWebServer

Configurable BDD testing using a Kotlin DSL for Gherkin

Nice and simple DSL for Espresso Compose UI testing in Kotlin

An extremely barebones boilerplate project for compiling Kotlin to Javascript

🦁 A Disney app using transformation motions based on MVVM (ViewModel, Coroutines, Flow, Room, Repository, Koin) architecture.

:camera: Easy Photo Map is a photomap application that displays the location of the photo on the map using the location information included in the photo.

Android app to help to tune a banjo

Android TextToSpeech Helper to talk any text you want and handle events.

Kotlin logging, both js and jvm

Kotlin/JS bindings for PIXI.js library.

:lock: Easy Password is password management application. This application uses pattern locks to manage information that requires security.

This is a first kotlin project

RHRE – A playable, custom remix editor for the Rhythm Heaven series

Easy to use and concise yet powerful and robust command line argument parsing for Kotlin

Build software better, together

Create kotlin android project with one line of command.

🎓 Learning Kotlin Coroutines and Flows for Android by example. 🚀 Sample implementations for real-world Android use cases. 🛠 Unit tests included!

The Lazybones app migrated to Kotlin as a learning exercise

Maxibon kata for Kotlin Developers. The main goal is to practice property based testing.

❤️ A heart-shaped toggle switch component for Jetpack Compose

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

A Kotlin Android library for content provider queries with reactive streams and coroutines.

A multi-paradigm programming language running on JVM

🔴 A non-deterministic finite-state machine for Android & JVM that won't let you down

A customizable, animated progress bar that features rounded corners. This Android library is designed to look great and be simple to use 🎉

Libraries and tools supporting the use of Vue.js in Kotlin. (This project is finished. There are no plans to update in the future. )

Jenkins plugin for automated documentation uploading to Confluence.

Kotlin DSL for CSS

Showcase project of Functional Reactive Programming on Android, using RxJava.

A simple, coroutine based Kotlin Email API for both client- and server-side projects

🚀Optimizer for mobile applications

Java/Kotlin compiled code viewer

Object oriented web framework for Kotlin/JS

Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.

🍲Foodium is a sample food blog Android application 📱 built to demonstrate the use of Modern Android development tools - (Kotlin, Coroutines, Flow, Dagger 2/Hilt, Architecture Components, MVVM, Room, Retrofit, Moshi, Material Components).

🦄 Sourcerer app makes a visual profile from your GitHub and git repositories.

🌈Rainbow Brackets for IntelliJ based IDEs/Android Studio/HUAWEI DevEco Studio/Fleet

Beautiful and feature rich workout log app.

:blowfish: An Android & JVM key-value storage powered by Protobuf and Coroutines

Music Player GO - Apps on Google Play

Examples and demos for the new Vulkan API

🕸️ Graphs, finite fields and discrete dynamical systems in Kotlin

Bazel rules for Kotlin

:blue_book: A diary application optimized for user experience.

🍼Debug Bottle is an Android runtime debug / develop tools written using kotlin language.

A boilerplate-free Kotlin config library for loading configuration files as data classes

GameBoy Emulator Environment / Front-end - Kotlin

Various examples for Kotlin

📚 Sample Android Components Architecture on a modular word focused on the scalability, testability and maintainability written in Kotlin, following best practices using Jetpack.

The Android maps adapter

A lightweight Android activity router

(Deprecated) Kotlin Native/JS/JVM Annotation Processor library for Kotlin compiler plugins

Make a cool intro for your Android app.

It's finally easy to take photos/videos via camera or get photos/videos from gallery on Android.

Minimal UI library for Android inspired by React

Kotlin/kotlinconf-spinner