Track Awesome Kotlin Updates Weekly

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

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[ Daily / Weekly / Overview ]

Dec 02 - Dec 08, 2024

Links / Resources

• tbhaxor/GUIDE-TO-KOTLIN (⭐11) - A practical guide on Kotlin for Developers

Libraries/Frameworks / Web

• kwebio/kweb-core (⭐970) - Build rich live-updating web apps in pure server-side Kotlin.

• bootique/bootique-kotlin (⭐13) - Provides extension function and features for smooth development with Bootique and Kotlin.

Libraries/Frameworks / Testing

• dam5s/aspen (⭐33) - Aspen is an RSpec and Spek inspired test runner for Kotlin.

• tyro/arbitrater (⭐41) - Arbitrater is a library for creating arbitrary (randomized) instances of classes by reflection for use in testing.

• KennethWussmann/mock-fuel (⭐0) - JUnit 5 extension to easily mock external HTTP requests made with the HTTP client Fuel.

• jcornaz/kwik (⭐21) - A property-based testing library for Kotlin. Execute tests with randomized inputs with a test-engine agnostic and compile-time safe library.

Libraries/Frameworks / Dependency Injection

• kailan/kodeinject (⭐14) - Constructor dependency injection for Kodein.

Libraries/Frameworks / Coroutines

• Kotlin/kotlin-coroutines (⭐1.5k) - Design documents and examples for coroutines in Kotlin.

• soywiz/korim (⭐133) - Korim: Kotlin cORoutines IMaging utilities depending on Korio.

• soywiz/korui (⭐44) - Korui: Kotlin cORoutines User Interfaces: korio + kimage + korui

• huanshankeji/compose-html-material (⭐29) - Compose HTML Material 3 wrapper components based on Material Web

Libraries/Frameworks / Functional Programming

• UrbanCompass/Snail-Kotlin (⭐44) - An observables framework for Kotlin.

Libraries/Frameworks / Serialization

• SalomonBrys/Kotson (⭐708) - Gson for Kotlin, Kotson enables you to parse and write JSON with Google's Gson using a conciser and easier syntax.

• fboldog/ext4klaxon (⭐8) - Type Extensions (Long, Int, Enum, Date) for Klaxon.

Libraries/Frameworks / Database

• x2bool/kuery (⭐202) - Typesafe SQL with Kotlin.

• huanshankeji/exposed-vertx-sql-client (⭐5) - Exposed on top of Vert.x Reactive SQL Client

Libraries/Frameworks / Tools

• jtransc/jtransc (⭐632) - JVM AOT compiler created in Kotlin.

Libraries/Frameworks / Desktop

• edvin/tornadofx (⭐3.7k) - Lightweight JavaFX Framework for Kotlin/

Libraries/Frameworks / Http Clients

• egorzhdan/networkinkt (⭐31) - Multiplatform coroutine-based HTTP client.

• curiousnikhil/Asynkio (⭐80) - Make asynchronous calls painlessly with async/await style.

Libraries/Frameworks / Misc

• moshbit/Kotlift (⭐395) - Kotlift is the first source-to-source language transpiler from Kotlin to Swift.

• phxql/aleksa (⭐35) - Aleksa is a small framework for writing Alexa Skills in Kotlin.

• soywiz/klock (⭐676) - Consistent and portable date and time utilities for multiplatform kotlin (JVM, JS and Common).

• korlibs/kds (⭐49) - Optimized Kotlin Data Structures for JVM, JS and Common

• kryptokrona/kryptokrona-kotlin-sdk (⭐51) - Kryptokrona SDK in Kotlin for building decentralized private communication and payment systems.

Libraries/Frameworks / Extensions

• Kotlin/kotlinx.support (⭐56) - Extension and top-level functions to use JDK7/JDK8 features in Kotlin 1.0.

Libraries/Frameworks / Graphics

• GlimpseFramework/glimpse-framework (⭐16) - OpenGL made simple.

Libraries/Frameworks / Data Science

• sekwiatkowski/Komputation (⭐294) - A neural network framework written in Kotlin.

Libraries/Frameworks / Logging

• Foso/Cabret-Log (⭐195) - Method call logging for Kotlin Multiplatform

Libraries/Frameworks / Mail

• bluefireoly/SimpleKotlinMail (⭐67) - A simple, modern and coroutine based Kotlin Email API, supporting both clientside and serverside projects.

Libraries/Frameworks / Jetpack-Compose

• huanshankeji/compose-multiplatform-html-unified (⭐17) - Unified Compose Multiplatform wrappers of common and Material Design APIs for rendering-based Compose UI and DOM-based Compose HTML

Projects / Web

• mariomac/codebuilder (⭐6) - Demo app about asynchronous architectures for long-response-time web applications.

Projects / Build tools

• gradle/kotlin-dsl-samples (⭐3.7k) - Kotlin language support for Gradle build scripts.

• nebula-plugins/nebula-kotlin-plugin (⭐57) - Provides the Kotlin plugin via the Gradle plugin portal, automatically depends on the standard library, and allows Kotlin library versions to be omitted.

Projects / Misc

• kpspemu/kpspemu (⭐73) - Multiplatform (JS and JVM) PSP Emulator written in Kotlin.

• chrislo27/RhythmHeavenRemixEditor (⭐436) - An audio custom remix editor designed for the Rhythm Heaven series, using libGDX and Kotlin.

Projects / Desktop

• yschimke/okurl (⭐124) - cURL-like client based on OkHttp.

• hazae41/Kotlin-Compiler-GUI (⭐1) - Easily compile Kotlin classes (.kt) and run Kotlin scripts (.kts)

Projects / Examples

• Kotlin/kotlin-koans (⭐2.6k) - Kotlin Koans are a series of exercises to get you familiar with the Kotlin Syntax.

• JetBrains/kotlin-examples (⭐3.2k) - Various examples for Kotlin.

Projects / Android

• skydoves/githubfollows (⭐294) - A demo project based on MVVM architecture and material design & animations.

Android / Libraries

• JakeWharton/kotterknife (⭐2.2k)

• nsk-mironov/kotlin-jetpack (⭐182)

• ragunathjawahar/kaffeine (⭐154)

• GlimpseFramework/glimpse-framework-android (⭐5) - OpenGL made simple.

• calintat/alps (⭐4) - Android library for preferences which includes property delegates and a custom DSL for definining preferences.

• Jintin/MixAdapter (⭐19) - Compose multiple Adapter for RecyclerView in Android.

Android / Frameworks

• 0xe1f/ararat (⭐33)

Android / Projects

• hanjoongcho/aaf-easyphotomap (⭐41) - This is a photomap app that shows photos taken on a map.

• mustafaberkaymutlu/uv-index (⭐66) - A simple ultraviolet index viewer app for demonstrating Instant Apps + Kotlin + Dagger + MVP

• hanjoongcho/aaf-easypassword (⭐35) - A password manager using a single lock pattern for various type passwords management.

• android-password-store/Android-Password-Store (⭐2.6k) - Android application compatible with ZX2C4's Pass command line application.

• AnkitSuda/Rebound (⭐182) - Feature Rich & Highly Customizable Workout Log App.

Android / Extensions

• rosariopfernandes/fireXtensions (⭐29) - Unofficial Kotlin Extensions for the Firebase Android SDK.

Kotlin JavaScript / JavaScript

• pixijs/pixi-native (⭐87) - The aim of this project is to provide a fast lightweight 2D library that works across all devices.

• Kotlin/kotlin-fullstack-sample (⭐1.2k) - Kotlin Full-stack Application Example.

• Foso/MpApt (⭐235) - Kotlin Native/JS/JVM Annotation Processor library

Kotlin JavaScript / Build Tools

• Kotlin/kotlin-frontend-plugin (⭐564) - Gradle Kotlin plugin for frontend development.

Kotlin JavaScript / Integration

• kotlin/ts2kt (⭐317) - Converter of TypeScript definition files to Kotlin declarations (stubs).

Kotlin Native / Projects

• JetBrains/kotlin-native (⭐7k) - Kotlin/Native is a LLVM backend for the Kotlin compiler, runtime implementation and native code generation facility using LLVM toolchain.

Oct 21 - Oct 27, 2024

Libraries/Frameworks / Web

• hexagontk/hexagon - A Microservices toolkit that takes care of HTTP, serialization and templates.

Libraries/Frameworks / Testing

• lupuuss/Mokkery (⭐205) - The mocking library for Kotlin Multiplatform, easy to use, boilerplate-free and compiler plugin driven.

Libraries/Frameworks / Misc

• eriksencosta/money (⭐167) - Monetary calculations and allocations made easy

Oct 07 - Oct 13, 2024

Links / Books

• Kotlin Crash Course - Quickly master Kotlin by practicing what you learn in eight interactive projects, including REST APIs, serverless deployments, and more.

Libraries/Frameworks / Misc

• vendelieu/re.this - Kotlin Multiplatform Redis Client: coroutine-based, DSL-powered, and easy to use.

Sep 30 - Oct 06, 2024

Android / Tools

• jzbrooks/vgo (⭐43) - vgo is a tool for optimizing and converting between vector artwork representations.

Sep 23 - Sep 29, 2024

Libraries/Frameworks / Compiler Plugins

• Mr-Mappie/mappie (⭐24) - Kotlin compiler plugin generating type-safe and performant object mapping code.

Sep 16 - Sep 22, 2024

Kotlin Native / Projects

• trueangle/kotlin-native-aws-lambda-runtime (⭐6) - A runtime for executing AWS Lambda functions written in Kotlin/Native, designed to reduce cold start issues common with the JVM platform.

Sep 09 - Sep 15, 2024

Libraries/Frameworks / Parsers

• fleeksoft/ksoup (⭐317) - Kotlin Multiplatform library for working with HTML and XML. It's a port of the renowned Java library Jsoup.

Sep 02 - Sep 08, 2024

Libraries/Frameworks / Dependency Injection

• traversals/kapsule (⭐164) - Minimalist dependency injection library for Kotlin.

Aug 19 - Aug 25, 2024

Libraries/Frameworks / Web

• allangomes/kotlinwind.css (⭐16) - Kotlin DSL for CSS based on Tailwind.

Jul 29 - Aug 04, 2024

Libraries/Frameworks / Database

• mongodb/mongo-java-driver (⭐2.6k) - The official MongoDB Kotlin Driver allows developers to build server-side Kotlin applications with MongoDB.

Jul 08 - Jul 14, 2024

Libraries/Frameworks / Testing

• Trendyol/stove (⭐173) - The easiest way of writing e2e tests for your JVM back-end API with Kotlin

Jul 01 - Jul 07, 2024

Libraries/Frameworks / Database

• objectbox/objectbox-java (⭐4.4k) - Embedded on-device object database for Mobile Apps and IoT.

• smyrgeorge/sqlx4k (⭐146) - A small non-blocking database driver written in Kotlin for the Native platform.

Libraries/Frameworks / I/O

• lepicekmichal/SignalRKore (⭐26) - Kotlin multiplatform implementation of SignalR.

Libraries/Frameworks / API Clients

• InsanusMokrassar/ktgbotapi (⭐364) - Strongly typed API wrapper for Telegram Bots API

Projects / Web

• FirstArtaxer/karbitrage (⭐0) - Kotlin-based project designed to extract cryptocurrency prices from various exchanges using the Ktor framework.

May 20 - May 26, 2024

Android / Tests

• KakaoCup/Kakao (⭐332) - Nice and simple DSL for Espresso in Kotlin

Apr 29 - May 05, 2024

Links / Resources

• Kotlin: An Illustrated Guide - Illustrated guide to learn Kotlin

Apr 01 - Apr 07, 2024

Libraries/Frameworks / Misc

• eriksencosta/math-common (⭐1) - Mathematical conventions to reduce boilerplate code

• eriksencosta/math-percentage (⭐2) - Percentage calculations made easy

Libraries/Frameworks / Multiplatform

• respawn-app/FlowMVI (⭐327) - A Kotlin Multiplatform architectural framework based on coroutines with an extensive feature set, powerful plugin system and a rich DSL.

Mar 04 - Mar 10, 2024

Libraries/Frameworks / Data Science

• timefoldai/timefold-solver - AI solver to optimize scheduling of vehicle routes, employees, maintenance, jobs, etc.

Feb 26 - Mar 03, 2024

Libraries/Frameworks / Misc

• seljabali/java-time-fun (⭐59) - java.time Kotlin extension functions library.

Feb 19 - Feb 25, 2024

Libraries/Frameworks / Testing

• diffplug/selfie - Snapshot testing (inline, on disk, and memoization)

Libraries/Frameworks / Data Science

• sigbla/sigbla-app (⭐21) - Sigbla is a framework for working with data in tables, supporting various data types, reactive programming and events, user input, charts, and more

Jan 29 - Feb 04, 2024

Libraries/Frameworks / Parsers

• asm0dey/staks (⭐13) - Extensible XML parser DSL, based on StAX

Libraries/Frameworks / Multiplatform

• L-Briand/KTM (⭐20) - Mustache templating in kotlin multiplatform

Libraries/Frameworks / Cryptography

• appmattus/crypto (⭐92) - A collection of Kotlin Multiplatform Mobile cryptographic hashing functions.

Jan 22 - Jan 28, 2024

Android / Projects

• inorichi/tachiyomi - Free and open source manga reader for Android.

Dec 25 - Dec 31, 2023

Libraries/Frameworks / Tools

• Kotlin Notebook - Kotlin notebooks are interactive worksheets with rich outputs.

Libraries/Frameworks / Multiplatform

• divyanshupundir/mavlink-kotlin (⭐49) - A modern MAVLink library for Kotlin Multiplatform.

Libraries/Frameworks / Data Science

• Kotlin/kandy (⭐609) - Kotlin plotting library

• Kotlin/KotlinDL (⭐1.5k) - High-level Deep Learning Framework written in Kotlin and inspired by Keras.

Kotlin WebAssembly / Official Links

• Kotlin/Wasm Overview - Learn everything about Kotlin WebAssembly platform

Kotlin WebAssembly / Examples

• Kotlin/Wasm Examples (⭐527) - Explore a variety of Kotlin/Wasm example projects, showcasing applications like Compose Multiplatform, browser DOM API, Node.js, and WASI integration.

Nov 27 - Dec 03, 2023

Libraries/Frameworks / Misc

• jillesvangurp/geogeometry (⭐126) - GeoGeometry is a set of algorithms and functions for manipulating geo hashes and geometric shapes with geo coordinates

• jillesvangurp/querylight (⭐6) - In memory search engine for simple in app search. Implements tf/idf and a some basic queries, tokenizers and analyzers.

Libraries/Frameworks / API Clients

• jillesvangurp/kt-search (⭐111) - Kotlin multiplatform library for Elasticsearch and Opensearch

• formation-res/overpass-kotlin-client (⭐1) - A simple client for overpass that uses ktor-client and kotlinx.serialization for parsing JSON responses.

Libraries/Frameworks / Internationalisation and Localization

• formation-res/fluent-kotlin (⭐10) - Kotlin multi platdform localization for js and jvm based on project fluent.

Projects / Web

• jillesvangurp/rankquest-studio (⭐7) - Rankquest Studio is a web based tool that you can use to benchmark search query metrics for your search APIs. Written in Kotlin & Fritz2

Projects / Examples

• formation-res/kt-fullstack-demo (⭐2) - This demo kotlin-js project implements a UI and server for a little recipe search engine to demonstrate fritz2, kotlin-js, localization with mozilla fluent, use of koin in a webapp.

Nov 20 - Nov 26, 2023

Libraries/Frameworks / Tools

• typesafegithub/github-workflows-kt (⭐541) - Authoring GitHub Actions workflows in Kotlin. You won't go back to YAML!

Nov 13 - Nov 19, 2023

Libraries/Frameworks / Misc

• nsk90/kstatemachine (⭐371) - KStateMachine is a Kotlin DSL library for creating state machines and statecharts.

Oct 02 - Oct 08, 2023

Libraries/Frameworks / Web

• Flaxoos/flax-ktor-plugins (⭐69) - A Ktor plugins repository for servers and clients, including a kafka client plugin, circuit breaker and more

Sep 11 - Sep 17, 2023

Android / Libraries

• Blueprint (⭐138) - 📐 A library that draws a blueprint on top of your Jetpack Compose composables. It visualizes dimensions, like paddings and sizes.

Jul 31 - Aug 06, 2023

Libraries/Frameworks / DSL

• bipokot/Kabu (⭐33) - The fastest way to create complex Kotlin DSL

Jul 10 - Jul 16, 2023

Libraries/Frameworks / Multiplatform

• Ashampoo/kim (⭐177) - Kotlin Multiplatform library for reading and writing image metadata

• Ashampoo/xmpcore (⭐17) - Kotlin Multiplatform port of Adobe's XMP SDK

Libraries/Frameworks / Jetpack-Compose

• mahozad/wavy-slider (⭐170) - Multiplatform UI widget that recreates the Android 13 squiggly progress bar

Jul 03 - Jul 09, 2023

Libraries/Frameworks / Http Clients

• corbella83/kotliny.network (⭐6) - Simple, powerful and lightweight Kotlin Multiplatform Network Client

Jun 19 - Jun 25, 2023

Libraries/Frameworks / Testing

• Kotlin/kotlinx-benchmark (⭐519) - A powerful library for benchmarking in Kotlin.

Jun 12 - Jun 18, 2023

Projects / Desktop

• krud-dev/ostara (⭐323) - A desktop application that provides various features to monitor and interact with Spring Boot Applications via Actuator.

May 22 - May 28, 2023

Libraries/Frameworks / Web

• Ahoo-Wang/Wow (⭐199) - A Modern Reactive CQRS Architecture Microservice development framework based on DDD and EventSourcing.

Libraries/Frameworks / Validation

• kciter/thing (⭐65) - A rule-based entity management library written in Kotlin

Apr 17 - Apr 23, 2023

Libraries/Frameworks / Misc

• Ahoo-Wang/Simba (⭐17) - Distributed lock service

Apr 10 - Apr 16, 2023

Libraries/Frameworks / Misc

• lpicanco/krate - Krate is a rate limiter library designed specifically for Kotlin applications. In memory, Redis and Caffeine support.

Mar 20 - Mar 26, 2023

Libraries/Frameworks / Database

• komapper/komapper (⭐302) - Komapper is an ORM library for server-side Kotlin with JDBC and R2DBC support.

Libraries/Frameworks / API Clients

• MoviebaseApp/tmdb-api (⭐214) - Modern powerful TMDB API to fetch movies and TV shows for Kotlin Multiplatform.

• MoviebaseApp/trakt-api (⭐46) - Modern powerful Trakt API to track, discover and share your movies & TV shows.

Jan 09 - Jan 15, 2023

Libraries/Frameworks / Misc

• KotUniL (⭐117) - KotUniL: Kotlin function and objects for working with SI units like meter, second, as well as currencies and general units like percent.

Dec 26 - Jan 01, 2022

Libraries/Frameworks / Database

• ctripcorp/SQLlin (⭐227) - A DSL SQLite library for Kotlin Multiplatform

Libraries/Frameworks / Multiplatform

• ctripcorp/mmkv-kotlin (⭐134) - The Kotlin Multiplatform wrapper for MMKV

Dec 05 - Dec 11, 2022

Libraries/Frameworks / Web

• nacular/doodle - A pure Kotlin UI framework for the Web (and Desktop)

Libraries/Frameworks / Multiplatform

• nacular/measured (⭐161) - Type-safe, intuitive units of measure

Projects / Examples

• TobseF/Candy-Crush-Clone (⭐136) - A Kotlin Multiplatform match 3 sample game build to teach, made with KorGE.

Nov 21 - Nov 27, 2022

Libraries/Frameworks / Web

• Ahoo-Wang/CoSec (⭐32) - RBAC-based And Policy-based Multi-Tenant Security Framework.

Libraries/Frameworks / Misc

• Ahoo-Wang/CoCache (⭐8) - Level 2 Distributed Coherence Cache Framework

Nov 14 - Nov 20, 2022

Libraries/Frameworks / Testing

• Ninja-Squad/springmockk (⭐490) - SpringMockK: MockBean and SpyBean, but for MockK instead of Mockito

Projects / Web

• Ahoo-Wang/CoSky (⭐81) - High-performance, low-cost microservice governance platform. Service Discovery and Configuration Service

Nov 07 - Nov 13, 2022

Android / Libraries

• OTPComposable (⭐2) - A library dedicated to making OTP (One Time Password) components a breeze to implement

Oct 31 - Nov 06, 2022

Libraries/Frameworks / Misc

• touchlab/KMMBridge (⭐364) - KMMBridge is a set of Gradle tooling that facilitates publishing and consuming pre-built KMM (Kotlin Multiplatform Mobile) Xcode Framework binaries.

Oct 24 - Oct 30, 2022

Links / Courses

• Programming Fundamentals in Kotlin - Practice and expand on the fundamentals of programming that are core to any language as well as the unique aspects of Kotlin syntax.

• Advanced Programming in Kotlin - Get ready to expand on your Kotlin skills to create common advanced functionality that typical Android apps need.

Libraries/Frameworks / Testing

• EranBoudjnah/TestIt (⭐44) - Generate unit testing boilerplate from kotlin files.

Libraries/Frameworks / Database

• Litote/kmongo (⭐781) - KMongo - Kotlin toolkit for Mongo

• dizitart/nitrite-database (⭐841) - Potassium Nitrite is a kotlin extension of nitrite database, an open source nosql embedded document store with mongodb like api.

Libraries/Frameworks / Tools

• facebookincubator/ktfmt (⭐931) - Kotlin code formatter that reflows lines and always produces the same result.

Libraries/Frameworks / Game Development

• zeganstyl/thelema-engine (⭐77) - 3d graphics engine in Kotlin, based on sources of libGDX. Platforms: JVM, TeaVM, Kotlin/JS, Kotlin/Native. See live demo: TeaVM, Kotlin/JS

Libraries/Frameworks / Misc

• pmwmedia/tinylog (⭐703) - Lightweight logging framework with native logging API for Kotlin.

• ivanisidrowu/KtRssReader (⭐99) - Kotlin library for parsing RSS feeds

• krud-dev/shapeshift (⭐192) - A Kotlin library for intelligent object mapping and conversion between objects.

Libraries/Frameworks / Data Science

• Kotlin/multik (⭐649) - A Kotlin library for working with multi-dimensional arrays

Libraries/Frameworks / Command Line Interface

• ajalt/clikt (⭐2.6k) - Clikt - Intuitive command line interface parsing for Kotlin.

• xenomachina/kotlin-argparser (⭐485) - Easy to use and concise yet powerful and robust command line argument parsing for Kotlin.

• ajalt/mordant (⭐990) - Mordant - Full-featured text styling for Kotlin command line applications.

• aPureBase/arkenv (⭐17) - Fully fledged command line arguments / environment variables parser via simple Kotlin delegates

• fork-handles/bunting4k (⭐224) - Simple, typesafe, testable command line flags

• dbaelz/Konclik (⭐45)

• varabyte/kotter (⭐575) - A declarative, Kotlin-idiomatic API for writing dynamic command line applications

• kotlin-inquirer (⭐219) - A collection of common interactive command line user interfaces written in Kotlin

Libraries/Frameworks / Browsers

• wendigo/chrome-reactive-kotlin (⭐77)

Libraries/Frameworks / I/O

• square/okio - A modern I/O library for Android, Kotlin, and Java.

• rsocket/rsocket-kotlin - Kotlin implementation of RSocket.

Libraries/Frameworks / Internationalisation and Localization

• cashapp/barber (⭐166) - A type safe Kotlin JVM library for building up localized, fillable, themed documents using Mustache templating.

• projectfluent/fluent-kotlin (⭐29) - Kotlin tooling implementation of ProjectFluent. Read, write, and transform Fluent files.

Libraries/Frameworks / Jetpack-Compose

• CuriousNikhil/neumorphic-compose (⭐398) - Neumorphism UI on Android with Jetpack Compose. Just add one modifier = Modifier.neumorphic()

Projects / Web

• sdeleuze/spring-boot-kotlin-demo (⭐616) - Basic Spring Boot app in Kotlin.

• IRus/kotlin-dev-proxy (⭐22) - Simple server for proxy requests and host static files written in Kotlin, Spark Java and Apache HttpClient.

• ratpack/example-ratpack-gradle-kotlin-app (⭐37) - An example of a Kotlin Ratpack app built with Gradle.

• eddywm/KTFLITE (⭐178) - Computer Vision on Android with Kotlin and Tensorflow Lite.

• corda/corda (⭐4k) - Corda is a distributed ledger platform designed to record, manage and automate legal agreements between business partners.

• mixitconf/mixit (⭐539) - MiXiT website

• derveloper/kiny - Your super simple private serverless service running your kotlin functions like AWS lambda.

• ssouris/petclinic-spring5-reactive (⭐53) - Spring 5 Reactive Petclinic app written in Kotlin.

• yyunikov/spring-boot-2-kotlin-starter (⭐17) - Spring Boot 2.0 Kotlin application starter with configurations for Gradle, Mongo, JUnit 5 tests, logging, CircleCI and Docker compose.

• viniciusccarvalho/kodein-cloud-functions (⭐3) - Provides adapters to different cloud functions providers (AWS, Azure) to run vanilla kotlin functions defined as kodein modules

• MichaelGrigoryan25/kotlin-url-shortener - Basic URL shortener built with Kotlin, Redis and Javalin

Projects / Build tools

• cbeust/kobalt (⭐432) - Build system inspired by Gradle.

• pubref/rules_kotlin (⭐159) - Bazel rules for Kotlin.

Projects / Misc

• quicktype/quicktype (⭐12k) - Generate Kotlin types and converters from JSON, Schema, TypeScript, and GraphQL

• lice-lang/lice (⭐129) - A Lisp-like language's interpreter written in Kotlin

• borisf/classyshark-bytecode-viewer (⭐202) - View your Kotlin generated classes as Java and bytecode format.

• mkobit/jenkins-pipeline-shared-libraries-gradle-plugin (⭐148) - Gradle plugin to help with build and test of Jenkins Pipeline Shared Libraries.

• sourcerer-io/sourcerer-app (⭐6.7k) - Visual profile for software engineers written in Kotlin.

• Poweranimal/PowerCollections (⭐16) - Powerfull Collections, Sets, Lists and Maps.

• neworld/gradle-jdeploy-plugin (⭐2) - Gradle plugin to publish JVM applications via npmjs.com

• ruslanys/telegraff (⭐146) - Kotlin DSL for Telegram Bots creation.

• krzema12/fsynth (⭐11) - Music synthesizer as a Kotlin multiplatform project

• AngryJKirk/familybot (⭐121) - Telegram bot to have some fun with your buddies

• madhead/tyzenhaus (⭐14) - Shared expenses tracking Telegram bot

Projects / Desktop

• ice1000/Dekoder (⭐21) - A kotlin music player, materially designed.

• ice1000/dev-kt (⭐94) - DevC++-like cross-platform Kotlin IDE.

• ruslanys/vkmusic (⭐36) - JavaFX and Spring-Boot based application for grabbing music from VK.com.

• datalisk/datalisk - A file sync and storage application with end-to-end encryption and multi-platform support.

• pintowar/sudoscan (⭐7) - Scans and solves Sudoku Puzzles from images using AI

• russellbanks/HashHash (⭐35) - A Multiplatform GUI for Hashing, written in Compose for Desktop.

Projects / Examples

• JetBrains/swot (⭐1.8k) - Identify email addresses or domains names that belong to colleges or universities. Help automate the process of approving or rejecting academic discounts.

• robfletcher/lazybones-kotlin (⭐1) - The Lazybones app migrated to Kotlin as a learning exercise.

• wangjiegulu/KotlinAndroidSample (⭐27) - Android sample with kotlin.

• dodyg/Kotlin101 (⭐193) - 101 examples for Kotlin Programming language.

• dkandalov/kotlin-99 (⭐653) - Solve 99 problems with Kotlin!

• dkandalov/rosettacode-kotlin (⭐21) - Repository with source code from RosettaCode

• vicboma1/Kotlin-Koans (⭐123) - hese are the simple solutions of the kotlin koans online with intellij project.

• vicboma1/GettingStartedKotlin (⭐43) - Learn the basics of getting started with kotlin.

• vicboma1/Kotlin-Examples-Problems (⭐25) - These are the simple solutions of the kotlin example problems online.

• pakoito/FunctionalAndroidReference (⭐274) - A different Android app showcasing Functional Reactive Programming.

• bmaslakov/kotlin-algorithm-club (⭐931) - Classic algorithms and data structures in Kotlin.

• gyulavoros/kotlin-todomvc (⭐22) - Kotlin TodoMVC – full-stack Kotlin application demo

• mkraynov/todomvc-react-kotlin (⭐10) - React Kotlin TodoMVC – example based on create-react-kotlin-app and todomvc-react

• IvanMwiruki/30-seconds-of-kotlin (⭐251) - Useful Kotlin snippets you can understand quickly, using only the stdlib.

• xurxodev/integration-testing-kotlin-multiplatform-kata (⭐28) - A full exercise to learn how to use stubbing HTTP in Kotlin multiplatform using Ktor and Ktor Client Mock.

• rozkminiacz/KotlinUnitTesting (⭐115) - Kotlin Unit Testing Examples.

• itmaginationdemos/KMM-Sample-App (⭐5) - A sample app written with the help of KMM (Kotlin Multiplatform). File System access, voice recording, and persistence.

Projects / Idea Plugins

• Vektah/CodeGlance (⭐1.1k) - Intelij IDEA plugin for displaying a code mini-map similar to the one found in Sublime.

• intellij-rust/intellij-rust (⭐4.5k) - Rust IDE built using the IntelliJ Platform.

• izhangzhihao/intellij-rainbow-brackets (⭐4.5k) - Rainbow Brackets / Rainbow Parentheses for IntelliJ IDEA based IDEs.

• roger-yh99/Readhub (⭐62) - Readhub is a News Reader plugin for IntelliJ IDEs

• roger-yh99/AwesomeKotlinPlugin (⭐12) - AwesomeKotlin plugin for IntelliJ IDEs

• emedinaa/kotlin-mvp-volley (⭐9) - Example of Android project in Kotlin using MVP(Model View Presenter) pattern and volley library

• emedinaa/android-recyclerview (⭐2) - Some samples about the RecyclerView and Adapters using kotlin

• emedinaa/kotlin-viewmodel (⭐3) - Basic samples about ViewModel component

• csense-oss/idea-kotlin-checked-exceptions (⭐25) - Plugin to help integrate with java and exceptions (highlights, warns when not catching exceptions and a lot more)

Projects / Playground

• LouisCAD/kotlin-libraries-playground (⭐181)

Projects / Android

• skydoves/themovies (⭐496) - A simple project for The Movie DB based on Kotlin MVVM clean architecture and material design & animations.

• enricocid/Music-Player-GO - Simple yet fully-featured local music player aiming at simplicity and performance.

• TonnyL/Mango (⭐657) - An Android app for dribbble.com

• SimonSchubert/LinuxCommandBibliotheca (⭐876) - Android app which provides a bunch of useful Linux commands.

• SimonSchubert/NewsOut (⭐117) - Android and iOS mobile client for Nextcloud News app

• pranayairan/CoinBit (⭐61) - CoinBit is completely free Bitcoin & cryptocurrency portfolio tracker app. It helps you over 4000+ cryptocurrencies on 150+ platforms including Binance, GDAX, Kraken etc

• [MohsinAli0899/Book Summary App](https://github.com/MohsinAli0899/Book Summary App) - BookHub is an Android application that helps users to view books and add them to favorites.

Android / Libraries

• MarcinMoskala/ActivityStarter (⭐431)

• MarcinMoskala/KotlinPreferences (⭐51)

• MarcinMoskala/PreferenceHolder (⭐155)

• pawegio/KAndroid (⭐895)

• chibatching/Kotpref (⭐697)

• TouK/bubble (⭐99)

• mcxiaoke/kotlin-koi (⭐516)

• PicsArt/stateful (⭐68)

• BennyWang/KBinding (⭐408)

• inaka/KillerTask (⭐26)

• grandstaish/paperparcel (⭐500) - Boilerplate reduction library written specifically for working with Kotlin data classes on Android.

• nitrico/LastAdapter (⭐776) - Don't write a RecyclerView adapter again. Not even a ViewHolder!.

• denisidoro/krouter (⭐121) - A lightweight Android activity router.

• metalabdesign/AsyncAwait (⭐407) - async/await for Android built upon coroutines introduced in Kotlin 1.1.

• zserge/anvil (⭐1.4k) - Minimal UI library for Android inspired by React.

• robinchew/mvil (⭐7) - 'Virtual DOM' for Android inspired by Anvil.

• DanielMartinus/Stepper-Touch (⭐686) - Fun playful Android stepper widget for counting, written in Kotlin.

• infotech-group/android-drawable-dsl (⭐180) - DSL for constructing the drawables in Kotlin instead of in XML.

• zsmb13/MaterialDrawerKt (⭐518) - A DSL for creating Material Design navigation drawers without any XML.

• DanielMartinus/Konfetti (⭐3.2k) - Lightweight particle system to create realistic confetti

• rakshakhegde/ObservableFlow (⭐27) - Functional Constructs for Databinding + Kotlin + RxJava

• programmerr47/ganalytics (⭐11) - A tiny api layer for any analytics in application.

• line/clay (⭐121) - Clay is an Android library project that provides image trimming which is originally an UI component of LINE Creators Studio.

• WindSekirun/RichUtilsKt (⭐171) - Advancement Utils for Android Developer written in Kotlin.

• TradeMe/MapMe (⭐841) - A library that brings the adapter pattern and DiffUtil to Google Maps and MapBox.

• iglaweb/Ferris-Wheel (⭐321) - Simple android library to present an animated ferris wheel

• ehsunshine/colored-time-selector (⭐152) - A smart colored time selector. Users can select just free time with a handy colorful range selector.

• yundom/kache (⭐24) - A lightweight cache library written in Kotlin.

• adrielcafe/KBus (⭐46) - Dead simple EventBus for Android made with Kotlin and RxJava 2

• yundom/RxVan (⭐3) - A lightweight event bus written in Kotlin and RxJava.

• duanhong169/DrawableToolbox (⭐1.1k) - The missing drawable toolbox for Android.

• adrielcafe/AndroidCoroutineScopes (⭐17) - This lib implements the most common CoroutineScopes used in Android apps.

• WindSekirun/RxSocialLogin (⭐126) - This Android library is a library that provides social login for 15 platforms powered by RxJava2, Kotlin and Firebase Authentication.

• bakhtiyork/gradients (⭐51) - A curated collection of splendid gradients

• hpost/rx-brainwaves (⭐5) - RxJava wrapper for NeuroSky MindWave headsets

• adrielcafe/KrumbsView (⭐186) - The ultimate breadcrumbs view for Android!

• inshiro/Skate (⭐9) - A simple and easy to use Android fragment stack controller

• cortinico/slidetoact (⭐1.2k) - A simple 'Slide to Unlock' Material widget for Android, written in Kotlin

• AppIntro/AppIntro (⭐11k) - Make a cool/material intro for you Android App - Now all in Kotlin!

• CuriousNikhil/gossip (⭐14) - Android TextToSpeech Helper to speak any text you want and handle events.

• adrielcafe/PufferDB (⭐100) - An Android & JVM key-value storage powered by Protobuf and Coroutines.

• adrielcafe/HAL (⭐79) - A non-deterministic finite-state machine for Android & JVM that won't let you down.

• coil-kt/coil (⭐11k) - Image loading for Android backed by Kotlin Coroutines.

• levibostian/Shutter-Android (⭐56) - an Android library to take photos, record videos, pick images/videos from gallery, with ease. Written in Kotlin.

• rosariopfernandes/firecoil (⭐44) - Display images stored in Cloud Storage for Firebase using Coil.

• skydoves/Only (⭐482) - An easy way to persist and run code block only as many times as necessary on Android.

• skydoves/AndroidVeil (⭐1.5k) - An easy, flexible way to implement veil skeletons and shimmering effect for Android.

• skydoves/Submarine (⭐474) - Fully customizable floating navigation view for listing items dynamically on Android.

• skydoves/Needs (⭐613) - An easy way to implement modern permission instructions popup.

• evilthreads669966/EvadeMe (⭐42) - A heuristics evasion library that prevents your code from being analyzed or tested.

• evilthreads669966/BootLaces (⭐34) - Turns your background service persistent.

• evilthreads669966/WakeService - An IntentService that keeps your processor awake while doing work.

• evilthreads669966/Pickpocket (⭐28) - An asynchronous Android library for content providers and more.

• evilthreads669966/EasyShells - A simple shell for executing Linux commands with responses

• mr-wizman/Consent (⭐4) - Easy Android permissions. Powered by Kotlin.

• matteocrippa/Parrot (⭐22) - A lightweight library to load remote image and handle caching in ImageView.

• deva666/peko (⭐152) - Android library for requesting runtime permissions with Kotlin Coroutines

• MackHartley/DashedView (⭐69) - The easiest way to create a dashed or striped background on Android

• MackHartley/RoundedProgressBar (⭐784) - A customizable, animated progress bar that features rounded corners. This Android library is designed to look great and be simple to use

• developingdeveloper-tech/toaster-android (⭐27) - A simple library to add custom toast to android applications.

• heart-switch (⭐64) - A heart-shaped toggle switch component for Jetpack Compose

Android / Frameworks

• nekocode/kotgo (⭐1.6k) - An android development framework on kotlin using MVP architecture.

• lightningkite/kotlin-core (⭐35) - A full framework for making Android apps. Based on Anko and Kotson.

• hpost/rx-mvi (⭐8) - Minimal framework for Model View Intent inspired Android applications written in Kotlin.

• LouisCAD/Splitties (⭐2.5k) - A family of small Kotlin libraries for delightful Android development including View DSLs

• Miha-x64/Lychee (⭐119) - Data binding and persistence infrastructure for building Android and JavaFX UIs and binding them with data

Android / Projects

• BanDev/Buddha-Quotes (⭐37) - A collaborative project to create a Free and Open Source Buddha Quotes app.

• antoniolg/Bandhook-Kotlin (⭐1.9k) - A showcase music app for Android entirely written using Kotlin language.

• antoniolg/Kotlin-for-Android-Developers (⭐2.7k) - Companion App for the book "Kotlin Android Developers".

• damianpetla/kotlin-dagger-example (⭐534) - Example of Android project showing integration with Kotlin and Dagger 2.

• dodyg/AndroidRivers (⭐321) - RSS Readers for Android.

• MakinGiants/banjen (⭐11) - Android app to help to tune a banjo.

• inaka/kotlillon (⭐33) - Android Kotlin Examples.

• MakinGiants/todayhistory (⭐30) - App that shows what happened today in history.

• RxKotlin/Pocket (⭐32) - This app help user to save links easily, and can export to Evernote as weekly.

• SidneyXu/AndroidDemoIn4Languages (⭐195) - Comparison between Java, Groovy, Scala, Kotlin in Android Development.

• skydoves/DisneyMotions (⭐1.5k) - A beautiful Disney app using transformation motions based on MVVM architecture.

• ziggy42/Blum-kotlin (⭐83) - A simple android Twitter client written in Kotlin

• TwidereProject/Twidere-Android (⭐2.7k) - Material Design ready and feature rich Twitter app for Android 4.0+

• SimpleMobileTools/Simple-Calendar (⭐3.5k) - A simple calendar with events, customizable widget and no ads.

• SimpleMobileTools/Simple-Camera (⭐772) - A camera with flash, zoom and no ads.

• SimpleMobileTools/Simple-Draw (⭐519) - A canvas you can draw on with different colors.

• SimpleMobileTools/Simple-File-Manager (⭐1.5k) - A simple file manager for browsing and editing files and directories.

• SimpleMobileTools/Simple-Gallery (⭐3.6k) - A gallery for viewing photos and videos without ads.

• SimpleMobileTools/Simple-Notes (⭐829) - A simple textfield for adding quick notes without ads.

• ahong222/happy21 (⭐14) - A simple game of Black-Jack write with kotlin

• AllanWang/KAU (⭐220) - An extensive collection of Kotlin Android Utils

• inshiro/Kodesh (⭐13) - Free and open source Bible for Android

• Karumi/KataScreenshotKotlin (⭐76) - An full exercise to learn how to create screenshot tests for Android

• massivedisaster/AFM (⭐12) - A library to help android developers work easily with activities and fragments with Kotlin

• Karumi/KataSuperHeroesKotlin (⭐87) - A full exercise to learn how to create espresso tests using test doubles and a dependency injector for Android written in Kotlin.

• Karumi/KataContactsKotlin (⭐49) - An exercise to learn how to write software based on Clean Architecture using Kotlin.

• Karumi/KataTODOApiClientKotlin (⭐60) - A full exercise to learn how to use stubbing HTTP in Kotlin.

• Karumi/MaxibonKataKotlin (⭐43) - A ready to use playground to learn how to write tests using property-based testing in Kotlin.

• WilderPereira/lmgtfyGen (⭐6) - Simple Android App to generate Let Me Google That For You urls.

• WilderPereira/ftwfy (⭐3) - 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.

• hanjoongcho/aaf-easydiary (⭐439) - This is a diary application optimized to user experience.

• adrielcafe/GreenHellCompanionApp (⭐4) - Unofficial companion app for the game Green Hell.

• adrielcafe/ChromaAndroidApp (⭐113) - Chromatic tuner app.

• cuongpm/youtube-dl-android (⭐521) - Video downloader for Android - Download videos from Youtube, Facebook, Twitter, Instagram, Dailymotion, Vimeo and more than 1000 other sites.

• dgngulcan/droid-feed (⭐187) - News feed aggregated exclusively for Android Developers.

• VMadalin/kotlin-sample-app (⭐2.4k) - Android Sample App using modular, clean, scalable, testable Architecture written in Kotlin following the best practices with Jetpack

• PatilShreyas/Foodium (⭐2.3k) - Foodium is a sample food blog Android application built to demonstrate use of Modern Android development tools - (Kotlin, Coroutines, Flow, Dagger 2, Architecture Components, MVVM, Room, Retrofit, Moshi, Material Components).

• skydoves/MarvelHeroes (⭐1.2k) - A sample Marvel heroes application based on MVVM (ViewModel, Coroutines, LiveData, Room, Repository, Koin) architecture.

• halilozel1903/LearnKotlinProgramming (⭐7) - Let's Learn Kotlin Programming ❤️

• halilozel1903/KotlinTutorials (⭐112) - It's a project that contains lessons and examples about Kotlin programming language.

• PatilShreyas/NotyKT (⭐1.7k) - NotyKT is a complete Kotlin-stack (Backend + Android) application built to demonstrate the use of Modern development tools with best practices implementation.

• Marwa-Eltayeb/CurrencyExchange (⭐11) - 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.

• AmrDeveloper/Linkhub (⭐180) - Free and open source effective link management app with no ads.

Android / Extensions

• ajalt/timberkt (⭐205) - Easy Android logging with Kotlin and Timber.

• matteocrippa/karamba (⭐51) - A Swiss army knife of useful extensions for Kotlin

Android / Tools

• Kotlin/kdoctor (⭐612) - CLI tool that helps to set up the environment for Kotlin Multiplatform Mobile app development.

Kotlin JavaScript / JavaScript

• andrewoma/reakt (⭐264) - Reakt is a Kotlin wrapper for facebook's React library.

• shafirov/klogging (⭐34) - Kotlin logging, both js and jvm.

• stangls/kotlin-js-jquery (⭐20) - A small framework for writing client -side web -applications in Kotlin.

• danfma/kodando (⭐75) - Kotlin JS bindings and libraries.

• kengorab/kotlin-javascript-boilerplate (⭐10) - An extremely barebones boilerplate project for compiling Kotlin to Javascript.

• markaren/three-kt-wrapper (⭐56) - Kotlin wrappers for three.js JavaScript 3D library

• rjaros/kvision (⭐1.2k) - Object oriented Web UI framework for Kotlin/JS

• nosix/vue-kotlin (⭐194) - Libraries and tools supporting the use of Vue.js in Kotlin

• Kabbura/Kunafa (⭐166) - Easy to use, high level framework in Kotlin for front-end web-development and creating web apps without using HTML, CSS, or JavaScript.

• fortytwoapps/kstitch (⭐5) - An object oriented toolkit for MongoDB Stitch in KotlinJS.

Kotlin JavaScript / Game Development

• perses-games/kudens (⭐30) - Develop browser games in Kotlin

• Ayfri/PIXI-Kotlin (⭐15) - Typings for the graphics library PixiJs

Kotlin Native / Frameworks

• KwangIO/kwang (⭐59)

• msink/kotlin-libui (⭐651)

Oct 17 - Oct 23, 2022

Links / Courses

• Server-side with Kotlin Series - Learn how to use Kotlin for a variety of purposes such as Functional Programming, Image Detection, Building Microservices, Developing Backend, etc.

Libraries/Frameworks / Game Development

• littlektframework/littlekt (⭐325) - A Kotlin multiplatform 2D game development framework based on OpenGL that is inspired by libGDX and KorGE. Current platforms: JVM, Web, and Android.

Libraries/Frameworks / Misc

• kunalsheth/units-of-measure (⭐93) - A type-safe dimensional analysis library for Kotlin.

• z4kn4fein/kotlin-semver (⭐104) - Semantic Versioning library for Kotlin Multiplatform.

Projects / Examples

• robfletcher/midcentury-ipsum (⭐3) - Swingin’ filler text for your jet-age web page.

• som-one/zarif-kherkin (⭐8) - Configurable BDD testing using a Kotlin DSL for Gherkin.

• mrcsxsiq/Kotlin-Pokedex (⭐1.5k) - A Pokedex demo app built with Kotlin using ViewModel, LiveData, Room and Navigation

• LukasLechnerDev/Kotlin-Coroutine-Use-Cases-on-Android (⭐2.7k) - Learn Kotlin Coroutines for Android by example. Sample implementations for real-world Android use cases. Unit tests included.

Android / Libraries

• andre-artus/AnvilKotlin (⭐16) - Minimal UI library for Android inspired by React.

• mathcamp/fiberglass (⭐25) - Easy lightweight SharedPreferences library for Android in Kotlin using delegated properties.

• jupf/staticlog (⭐28) - StaticLog - super lightweight static logging for Kotlin, Java and Android.

• SnowdreamFramework/ToyBricks (⭐33) - Android Library that provide simpler way to achieve modularity.

• rahulchowdhury/Mystique (⭐47) - A generalized adapter for RecyclerView on Android which makes it easy to add heterogeneous items to a list.

• costular/kotlin-android-utils (⭐48) - Android utilities for easier and faster Kotlin programming.

Oct 10 - Oct 16, 2022

Libraries/Frameworks / Web

• ExpediaDotCom/graphql-kotlin (⭐1.7k) - Code-only GraphQL schema generation for Kotlin

Libraries/Frameworks / Misc

• cretz/asmble (⭐634) - Compile WebAssembly to JVM and other WASM tools.

• nickhristov/krakdown (⭐14) - A native markdown parser written in Kotlin.

Projects / Android

• deva666/NewsReader (⭐23) - Android app for reading news

• zt64/Hyperion (⭐680) - An alternative YouTube front-end using modern Android architecture and Material 3

Android / Libraries

• skydoves/balloon (⭐3.7k) - A lightweight popup like tooltips, fully customizable with arrow and animations.

• ChuckerTeam/chucker (⭐4k) - An on-device network inspection tool for Android.

Android / Multiplatform

• Reedyuk/blue-falcon (⭐348) - A unified Bluetooth library for Android and iOS.

• cossacklabs/themis (⭐1.9k) - Multi-language framework for solving typical data security tasks: storage and messaging encryption, authentication, works for 14 languages.

Android / Boilerplate

• bufferapp/android-clean-architecture-boilerplate (⭐3.7k) - A clean architecture boilerplate for android written in Kotlin

Oct 03 - Oct 09, 2022

Libraries/Frameworks / Web

• jooby-project/jooby (⭐1.7k) - Modular micro web framework for Java and Kotlin

Libraries/Frameworks / Functional Programming

• h0tk3y/kotlin-monads (⭐120) - Monads for Kotlin

Libraries/Frameworks / Graphics

• soywiz/kaifu2x (⭐32) - Waifu2x port to Kotlin as library and CLI. Convolutional-neural-network based upscaler for Anime-like images and noise/artifact reduction.

Android / Boilerplate

• bufferapp/clean-architecture-components-boilerplate (⭐1.3k) - A clean architecture boilerplate using andorid architecture components for android written in Kotlin

Sep 26 - Oct 02, 2022

Links / Courses

• CS194A Android Development - Learn basic, foundational techniques for developing Android mobile applications and apply those toward building a single or multi page, networked Android application

Libraries/Frameworks / Misc

• Kotlin/kotlinx.reflect.lite (⭐161) - Lightweight library allowing to introspect basic stuff about Kotlin symbols.

• fork-handles/tuples4k (⭐224) - Tuple classes

Libraries/Frameworks / Data Science

• Kotlin/dataframe (⭐847) - A Kotlin library for in-memory data manipulation

• JetBrains/lets-plot-kotlin (⭐444) - Grammar of graphics visualization for Kotlin

• Kotlin/kotlin-jupyter (⭐1.1k) - Official Kotlin Jupyter kernel

• kyonifer/koma (⭐269) - A scientific computing library for Kotlin.

• mipt-npm/kmath (⭐657) - A (not so numpy-like) multiplatform mathematical library with higher level abstractions.

• unipu-ict/ksdtoolkit (⭐3) - Kotlin System Dynamics Toolkit - for system dynamics modelling and simulation with Kotlin.

• MarcinMoskala/KotlinDiscreteMathToolkit (⭐185) - Set of extensions for Kotlin that provides Discrete Math functionalities as an Kotlin extension functions.

• sanity/pairAdjacentViolators (⭐49) - A Kotlin implementation of the Pair Adjacent Violators algorithm for isotonic regression.

• holgerbrandl/kalasim - Discrete event simulator that enables complex, dynamic process models.

• cdietze/euklid (⭐2)

• lamba92/KGraph (⭐19) - A Kotlin multi-platform library for graph data structures

• breandan/kaliningraph (⭐118)

• grinisrit/noa-atra (⭐26) - Analytics for Trading with NOA

Libraries/Frameworks / API Clients

• adamint/spotify-web-api-kotlin (⭐198) - Spotify Web API wrapper for Kotlin/Android, JVM, JS, and Native targets.

• awslabs/aws-sdk-kotlin (⭐416) - Multiplatform AWS SDK for Kotlin

Libraries/Frameworks / Logging

• LighthouseGames/KmLogging (⭐88) - Kotlin multiplatform logging. High performance, composable and simple to use.

Libraries/Frameworks / Jetpack-Compose

• CuriousNikhil/compose-particle-system (⭐76) - A lightweight particle system for Jetpack Compose - Quarks

Projects / Idea Plugins

• wuseal/JsonToKotlinClass (⭐3.1k) - Plugin for IntelliJ IDEs to generate Kotlin data class code from JSON text

Sep 19 - Sep 25, 2022

Libraries/Frameworks / Web

• kohesive/kovert (⭐155) - An invisible, super easy and powerful REST and Web framework over Vert.x or Undertow.

Libraries/Frameworks / Misc

• kohesive/klutter (⭐140) - A mix of random small libraries for Kotlin, the smallest reside here until big enough for their own repository.

• justwrote/kjob (⭐85) - A coroutine based persistent background scheduler written in Kotlin.

Libraries/Frameworks / Raspberry Pi

• Pi4J/pi4j-kotlin (⭐47) - Pi4J Kotlin DSL and API.

Sep 12 - Sep 18, 2022

Libraries/Frameworks / Misc

• RationalityFrontline/kevent (⭐13) - A powerful in-process event dispatcher based on Kotlin and Coroutines.

Aug 29 - Sep 04, 2022

Libraries/Frameworks / Misc

• insanusmokrassar/TelegramBotAPI (⭐364) - Kotlin Multiplatform library for type-safe work with Telegram Bot API

• pearxteam/kasechange (⭐90) - Multiplatform Kotlin library to convert strings between various case formats including Camel Case, Snake Case, Pascal Case and Kebab Case

Aug 22 - Aug 28, 2022

Libraries/Frameworks / Web

• darkredz/zeko-restapi-framework (⭐19)

Libraries/Frameworks / Misc

• saschpe/log4k (⭐21) - Lightweight logging library for Kotlin/Multiplatform. Supports Android, iOS, JavaScript and plain JVM environments.

• spoptchev/kotlin-preconditions - Precondition error checking in kotlin.

• holgerbrandl/kravis (⭐183) - A Kotlin grammar for scientific data visualization

Libraries/Frameworks / Cryptography

• ionspin/kotlin-multiplatform-libsodium (⭐105) - Kotlin multiplatform wrapper for Libsodium cryptographic library.

Projects / Idea Plugins

• dkandalov/activity-tracker (⭐70) - Plugin for IntelliJ IDEs to track and record user activity.

• dkandalov/limited-wip (⭐111) - Plugin to limit your work-in-progress.

• dkandalov/pomodoro-tm (⭐140) - Pomodoro timer.

• emedinaa/kotlin-mvvm (⭐537) - MVVM(Model View ViewModel) sample in Kotlin using the components ViewModel, LiveData and Retrofit library

Aug 08 - Aug 14, 2022

Libraries/Frameworks / Misc

• czyzby/kotlin-times (⭐43) - A simple utility library for readable loops.

Aug 01 - Aug 07, 2022

Libraries/Frameworks / Web

• taskworld/kraph (⭐151) - GraphQL request string builder written in Kotlin

Android / Boilerplate

• bufferapp/android-clean-architecture-mvi-boilerplate (⭐977) - A clean architecture boilerplate using android written in Kotlin and using the Model-View-Intent pattern

Jul 25 - Jul 31, 2022

Libraries/Frameworks / Testing

• sokomishalov/skraper (⭐255) - Kotlin/Java library, cli tool and telegram-bot for scraping posts and media from various sources with neither authorization nor full page rendering (Facebook, Instagram, Twitter, Youtube, Tiktok, Telegram, Twitch, Reddit, Pinterest, Flickr, Tumblr, etc.)

Libraries/Frameworks / Misc

• MehdiK/Humanizer.jvm (⭐167) - Humanizer.jvm meets all your jvm needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities.

• jershell/kbson (⭐41) - Bson support for kotlinx.serialization

Libraries/Frameworks / Multiplatform

• petertrr/kotlin-multiplatform-diff (⭐88) - Multiplatform kotlin library for calculating text differences. Based on java-diff-utils.

Libraries/Frameworks / DSL

• h0tk3y/regex-dsl (⭐86) - A Kotlin DSL for regular expressions

Jul 18 - Jul 24, 2022

Libraries/Frameworks / Misc

• vendelieu/telegram-bot (⭐196) - A lightweight, feature-rich wrapper for the Telegram Bot API

Jul 11 - Jul 17, 2022

Libraries/Frameworks / Testing

• HelloCuriosity/model-forge (⭐16) - A Kotlin library for auto generating models for tests.

Jul 04 - Jul 10, 2022

Libraries/Frameworks / Coroutines

• soywiz/korio (⭐1) - Korio: Kotlin cORoutines I/O: Streams + Async TCP Client/Server + Virtual File System for JVM, Node.JS and Browser.

Libraries/Frameworks / Validation

• LeoColman/SimpleCpfValidator (⭐24) - Simple Brazilian taxpayer document (CPF) validator

Libraries/Frameworks / Misc

• TicketmasterMobileStudio/actions-on-google-kotlin (⭐119) - Port of official Node.js SDK to Kotlin. Complete with all features and tests and nearly identical API.

Libraries/Frameworks / Graphics

• Jonatino/JOGL2D (⭐28) - Zero-overhead 2D rendering library for JOGL using Kotlin.

Android / Tools

• kiruto/debug-bottle (⭐855) - Debug Bottle is an Android runtime debug / develop tools written using kotlin language.

• didi/booster (⭐4.9k) - Booster is an optimization toolkit for Android applications

Jun 27 - Jul 03, 2022

Libraries/Frameworks / Networking

• open-coap/kotlin-mbedtls (⭐9) - Integration with mbedtls library to provide DTLS client and server in jvm

Jun 20 - Jun 26, 2022

Libraries/Frameworks / Jetpack-Compose

• Canopas/Intro-showcase-view (⭐487) - An android library to highlight different features of the app built using Jetpack Compose.

Jun 06 - Jun 12, 2022

Libraries/Frameworks / Web

• perwendel/spark-kotlin (⭐986) - A DSL in idiomatic Kotlin for the Spark web framework.

• jetbrains/kotless (⭐1.2k) - Kotlin serverless framework reducing the routine of serverless deployment.

Libraries/Frameworks / Testing

• robfletcher/strikt (⭐563) - An assertion library for Kotlin

• tschuchortdev/kotlin-compile-testing (⭐671) - A library for testing Kotlin and Java annotation processors, compiler plugins and code generation

Libraries/Frameworks / Logging

• InsanusMokrassar/KSLog (⭐10) - Simple Kotlin Logging

Libraries/Frameworks / Misc

• charleskorn/kaml (⭐524) - YAML support for kotlinx.serialization

May 30 - Jun 05, 2022

Libraries/Frameworks / Serialization

• knbt (⭐79) - Minecraft NBT support for kotlinx.serialization

Libraries/Frameworks / Validation

• konform-kt/konform (⭐680) - Multiplatform validations for Kotlin data classes

Libraries/Frameworks / Database

• bloomberg/selekt - Android SQL database library wrapping the community edition of SQLCipher, an SQLite extension that provides 256-bit AES encryption. Selekt realises the maximum concurrency offered by SQLite3.

Libraries/Frameworks / Misc

• vjames19/kotlin-futures (⭐83) - A collections of extension functions to make the JVM Future, CompletableFuture, ListenableFuture API more functional and Kotlin like.

May 23 - May 29, 2022

Libraries/Frameworks / Database

• pm-dev/kotlin-gremlin-ogm (⭐32) - Kotlin-gremlin-ogm is a type-safe object/graph mapping library for Gremlin enabled graph databases.

Libraries/Frameworks / Tools

• SonarSource/sonarlint-intellij (⭐609) - An IDE extension that helps you detect and fix quality issues as you write code.

• saveourtool/diktat (⭐544) - Strict coding standard for Kotlin and a custom set of rules for detecting and autofixing code smells.

• Kotlin/kotlin-interactive-shell (⭐592) - Kotlin Language Interactive Shell

• L-Briand/TT (⭐2) - A powerful key:value template processor.

Libraries/Frameworks / Misc

• kotlin-telegram-bot/kotlin-telegram-bot (⭐847) - A wrapper for the Telegram Bot API written in Kotlin.

• mobiletoly/urlsome (⭐4) - URL builder library for Kotlin

Android / Frameworks

• codenameone/CodenameOne (⭐1.7k) - Open source cross platform mobile development framework that offers write once run anywhere native development for iOS (iPhone/iPad), Android, Windows & more using Kotlin & Java

May 02 - May 08, 2022

Links / Books

• Kotlin in Action, Second Edition

Libraries/Frameworks / Web

• MarioAriasC/KotlinPrimavera (⭐87) - Spring support libraries for Kotlin.

Libraries/Frameworks / Testing

• robstoll/atrium (⭐572) - Multiplatform assertion library for Kotlin supporting i18n.

• codecentric/hikaku (⭐197) - A library that tests if the implementation of a REST-API meets its specification.

Apr 25 - May 01, 2022

Libraries/Frameworks / Misc

• fluidsonic/fluid-pdf (⭐22) - Easy PDF generation with HTML & CSS using Chromium or Google Chrome

Apr 18 - Apr 24, 2022

Libraries/Frameworks / Testing

• winterbe/expekt (⭐172) - BDD assertion library for Kotlin.

Libraries/Frameworks / Serialization

• fluidsonic/fluid-json (⭐31) - A JSON library written in pure Kotlin.

Libraries/Frameworks / Tools

• Kotlin/kotlinx-kover (⭐1.4k) - Gradle plugin for Kotlin code coverage agents.

Apr 11 - Apr 17, 2022

Links / Blogs

• Kt. Academy Medium - Blog that teach about Kotlin

• Kt. Academy - Publication with regular Kotlin posts.

Links / Books

• Effective Kotlin

• Kotlin Coroutines: Deep Dive - A practical book dedicated to Kotlin Coroutines, common use-cases, best practices and deep understanding.

Libraries/Frameworks / Testing

• permissions-dispatcher/kompile-testing (⭐70) - Testing tools for kotlinc and kapt.

Libraries/Frameworks / Misc

• sandjelkovic/kxjtime (⭐8) - Lightweight Kotlin extensions for java.time API

Libraries/Frameworks / Graphics

• kotlin-graphics/bullet (⭐43) - bullet port

• java-opengl-labs/learn-OpenGL (⭐38) - port of https://learnopengl.com/ tutorial (lwjgl)

Mar 28 - Apr 03, 2022

Libraries/Frameworks / Database

• kotlin-orm/ktorm (⭐2.1k) - A lightweight ORM Framework for Kotlin. Provides strong-typed and flexible SQL DSL and convenient sequence APIs to reduce our duplicated effort on database operations.

Mar 21 - Mar 27, 2022

Libraries/Frameworks / Web

• mvysny/vaadin-on-kotlin (⭐185) - A simple way to write full-stack database-backed component-oriented web apps

Mar 14 - Mar 20, 2022

Libraries/Frameworks / Web

• varabyte/kobweb - A modern framework for full stack web apps in Kotlin

Libraries/Frameworks / Misc

• doyaaaaaken/kotlin-csv (⭐650) - A pure kotlin simple csv reader/writer.

Mar 07 - Mar 13, 2022

Libraries/Frameworks / Functional Programming

• pakoito/Komprehensions (⭐117) - Do comprehensions for Kotlin and 3rd party libraries.

Libraries/Frameworks / Misc

• evoasm/kasm (⭐43) - x64/x86-64 assembler and execution library

Feb 28 - Mar 06, 2022

Libraries/Frameworks / Database

• square/sqldelight (⭐6.2k) - Generates Java models from CREATE TABLE statements.

Libraries/Frameworks / Graphics

• kotlin-graphics/openvr (⭐37) - OpenVR binding

Feb 21 - Feb 27, 2022

Libraries/Frameworks / Misc

• ziggy42/kolor (⭐78) - A library to print colored strings, with Kotlin.

Feb 14 - Feb 20, 2022

Libraries/Frameworks / Misc

• leprosus/kotlin-hashids (⭐119) - Library that generates short, unique, non-sequential hashes from numbers.

• Kotlin/kotlinx.atomicfu (⭐926) - The idiomatic way to use atomic operations in Kotlin.

Jan 31 - Feb 06, 2022

Libraries/Frameworks / Testing

• skrapeit/skrape.it (⭐817) - A DSL-driven HTML/XML parser-library that enables meaningful testing of rendered HTML templates.

Jan 24 - Jan 30, 2022

Libraries/Frameworks / Database

• cheptsov/kotlin-nosql (⭐213) - NoSQL database query and access library for Kotlin.

• andrewoma/kwery (⭐203) - Kwery is an SQL library for Kotlin.

• jasync-sql/jasync-sql (⭐1.7k) - Kotlin port of mauricio's async driver for postgres/mysql.

Libraries/Frameworks / Misc

• aminography/PrimeCalendar (⭐67) - Provides all of the java.util.Calendar functionalities for Civil, Persian, Hijri, Japanese, etc, as well as their conversion to each other.

Libraries/Frameworks / Jetpack-Compose

• CuriousNikhil/k5-compose (⭐215) - K5-compose is a sketchy port of p5.js for Jetpack Compose Desktop

Jan 17 - Jan 23, 2022

Libraries/Frameworks / Graphics

• openrndr/orx (⭐122) - ORX is a collection extras for OPENRNDR which add support for sensors, live-coding, user interfaces and much more.

Jan 10 - Jan 16, 2022

Libraries/Frameworks / Functional Programming

• fork-handles/result4k (⭐224) - Result monad for type safe error handling in Kotlin

Libraries/Frameworks / Graphics

• kotlin-graphics/gli (⭐31) - g-truck gli port, image library

Jan 03 - Jan 09, 2022

Libraries/Frameworks / Web

• jean79/yested (⭐84) - A Kotlin framework for building web applications in Javascript.

Libraries/Frameworks / Misc

• consoleau/kassava (⭐115) - This library provides some useful kotlin extension functions for implementing toString() and equals() without all of the boilerplate.

Dec 27 - Jan 02, 2021

Libraries/Frameworks / Misc

• d-max/dsl-logger (⭐3) - Simple DSL for logging with logger abstraction layer

Dec 20 - Dec 26, 2021

Libraries/Frameworks / Database

• darkredz/Zeko-SQL-Builder (⭐105)

• TouK/krush (⭐248) - Idiomatic persistence layer for Kotlin, based on Exposed. It’s based on a compile-time JPA annotation processor that generates Exposed DSL table and objects mappings from your data classes.

Libraries/Frameworks / Misc

• Jire/Strukt (⭐74) - Value types on the JVM, today!

Dec 13 - Dec 19, 2021

Libraries/Frameworks / Testing

• xgouchet/Elmyr (⭐83) - A utility to make Kotlin/Java tests random yet reproducible

Libraries/Frameworks / Misc

• DragonKnightOfBreeze/breeze-framework (⭐11) - Integrated code framework base on Kotlin, provide many useful extensions for standard library and some frameworks.

Dec 06 - Dec 12, 2021

Libraries/Frameworks / Graphics

• kotlin-graphics/kotlin-unsigned (⭐74) - Unsigned operators and boxed types (Ubyte, Uint, Ulong and Ushort) for unsigned support.

Nov 29 - Dec 05, 2021

Libraries/Frameworks / Web

• moia-dev/lambda-kotlin-request-router (⭐20) - A REST request routing layer for AWS lambda handlers written in Kotlin

Libraries/Frameworks / Graphics

• JetBrains/skiko (⭐1.8k) - Kotlin Multiplatform bindings to Skia

Projects / Web

• spolnik/JAlgoArena (⭐36) - JAlgoArena is a highly scalable programming contest platform which you can host on own infrastructure. It allows to define new problems and solve them in Kotlin and Java.

Nov 22 - Nov 28, 2021

Libraries/Frameworks / Misc

• vittee/kformula (⭐29) - Mathematical expression engine written in Kotlin, running on JVM.

• ssuukk/Qotlin (⭐16) - IBM Q Experience Kotlin toolkit - Kotlin library to interact and write assembly code for IBM Quantum computers

Nov 15 - Nov 21, 2021

Libraries/Frameworks / Testing

• EPadronU/balin (⭐72) - Balin is a browser automation library for Kotlin. It's basically a Selenium-WebDriver wrapper library inspired by Geb.

Libraries/Frameworks / Dependency Injection

• sergeshustoff/dikt (⭐141) - Simple and powerful DI for kotlin multiplatform

Libraries/Frameworks / Misc

• kohesive/solr-undertow (⭐96) - Solr Standalone Tiny and High performant server.

• sargunster/KtUnits (⭐23) - Tiny unit conversion library for Kotlin.

• spoptchev/scientist - A kotlin library for refactoring code. Port of GitHub's scientist.

• DavidMellul/Kotlin-Publish-Subscribe (⭐21) - Intuitive and powerful human-readable Kotlin DSL for IPCs & turning anything into a message receiver / broadcaster

Nov 08 - Nov 14, 2021

Libraries/Frameworks / Misc

• yole/kxdate (⭐258) - Kotlin extensions for Java 8 java.time API

Nov 01 - Nov 07, 2021

Libraries/Frameworks / Game Development

• libktx/ktx (⭐1.4k) - Kotlin utilities for LibGDX applications.

• korlibs/KorGE (⭐2.6k) - Modern Multiplatform Game Engine for Kotlin. Write games for the JVM, JavaScript, Android and iOS in no time using Kotlin.

Oct 25 - Oct 31, 2021

Libraries/Frameworks / Functional Programming

• arrow-kt/arrow-meta (⭐396) - Functional companion to Kotlin's Compiler.

Oct 18 - Oct 24, 2021

Libraries/Frameworks / Mocks and Fakes

• moove-it/fakeit (⭐536) - Generates realistic fake data — like names, emails, dates, countries — to be used in your Android development environment.

• bluegroundltd/kfactory (⭐58) - Fixture factory in Kotlin

Libraries/Frameworks / Functional Programming

• RubyLichtenstein/RxTest (⭐281) - Kotlin DSL for testing RxJava2

Libraries/Frameworks / Misc

• s1monw1/TLSLibrary (⭐76) - Simple TlsLibrary written in Kotlin - Provides DSL for creating TLS connections

Android / Tests

• KakaoCup/Compose (⭐147) - Nice and simple DSL for Espresso Compose UI testing in Kotlin

Oct 04 - Oct 10, 2021

Libraries/Frameworks / Misc

• pearxteam/kpastebin (⭐10) - Multiplatform Kotlin library to interact with the pastebin.com API

Libraries/Frameworks / Configuration

• uchuhimo/konf (⭐309) - A type-safe cascading configuration library for Kotlin/Java, supporting most configuration formats

Sep 13 - Sep 19, 2021

Libraries/Frameworks / Testing

• iotacb/ChefkochAPI - Kotlin/Java library, to parse and get information of recipes from chefkoch

Sep 06 - Sep 12, 2021

Libraries/Frameworks / Serialization

• lectra-tech/koson (⭐89) - A concise and lightweight Kotlin DSL to build JSON objects and render their String representations

Libraries/Frameworks / Misc

• Rasalexman/KDispatcher (⭐66) - Simple and light-weight event dispatcher for Kotlin

Aug 16 - Aug 22, 2021

Libraries/Frameworks / Serialization

• Jire/KTON (⭐60) - Object notation in pure Kotlin!

Libraries/Frameworks / Misc

• MiloszKrajewski/stateful4k (⭐33) - State Machine Construction Kit for Kotlin

Aug 09 - Aug 15, 2021

Libraries/Frameworks / Web

• aPureBase/KGraphQL (⭐307) - A GraphQL implementation written in Kotlin

Jul 26 - Aug 01, 2021

Libraries/Frameworks / Web

• ButterCam/sisyphus (⭐95) - Modern gRPC service framework based on Kotlin/Spring Boot with Message DSL/HTTP transcoding/Google AIP support.

Jun 14 - Jun 20, 2021

Libraries/Frameworks / Web

• jwstegemann/fritz2 (⭐666) - small lib to build reactive web-apps in pure Kotlin based on Flows

Libraries/Frameworks / Misc

• JoelW-S/groothy (⭐8) - Kotlin implementation of Groovy Truth.

Libraries/Frameworks / Graphics

• kotlin-graphics/glm (⭐131) - g-truck glm port, opengl mathematics library

Jun 07 - Jun 13, 2021

Libraries/Frameworks / Functional Programming

• michaelbull/kotlin-result (⭐1.1k) - A Result monad for modelling success or failure operations - inspired by Elm, Rust, & Haskell.

Libraries/Frameworks / Database

• consoleau/kotlin-jpa-specification-dsl (⭐249) - This library provides a fluent DSL for querying spring data JPA repositories using spring data Specifications.

Libraries/Frameworks / Graphics

• dananas/kotlin-glsl (⭐44) - Write your GLSL shaders in Kotlin

May 24 - May 30, 2021

Links / Official Links

• JetBrains/kotlin (⭐49k)

Libraries/Frameworks / Testing

• serpro69/kotlin-faker (⭐474) - Port of ruby faker gem written in kotlin

Libraries/Frameworks / Serialization

• qwertukg/xml-builder (⭐8) - Simplest XML builder for Kotlin

Libraries/Frameworks / Graphics

• kotlin-graphics/assimp (⭐95) - Open Asset Import Library port

• java-opengl-labs/modern-jogl-examples (⭐112) - port of 'Learning Modern 3D Graphic Programming' by J.L.McKesson (jogl)

May 17 - May 23, 2021

Links / Official Links

• Slack (38k+ users)

May 10 - May 16, 2021

Links / Official Links

• Kotlin/KEEP (⭐3.4k) - Kotlin Evolution and Enhancement Process

• Kotlin Forum

Links / Resources

• Awesome Kotlin Jobs (⭐17) - A curated list of companies using Kotlin

• From Java To Kotlin (⭐563)

• dbacinski/Design-Patterns-In-Kotlin (⭐5.9k)

• AlexeySoshin/Hands-on-Design-Patterns-with-Kotlin (⭐32) - Code examples for 'Hands-on Design Patterns with Kotlin' book

Libraries/Frameworks / Web

• ktorio/ktor - Web backend framework for Kotlin. Easy to use, fun and asynchronous.

• TinyMission/kara (⭐470) - Web framework written in Kotlin.

• http4k/http4k - Toolkit for serving and consuming HTTP services in a functional and consistent way.

• hhariri/wasabi (⭐502) - An HTTP Framework built with Kotlin for the JVM.

• Kotlin/kotlinx.html (⭐1.6k) - Kotlin DSL for HTML.

• celtric/kotlin-html (⭐24) - A library to generate HTML in Kotlin.

• sepatel/tekniq (⭐38) - Full-feature HTTP DSL Framework, HTTP Client, JDBC DSL, Loading Cache and Configuration

• vert-x3/vertx-lang-kotlin (⭐296) - This module provides Kotlin language bindings including DSL and extension functions for vert.x 3

• gimlet2/kottpd (⭐74) - REST framework in pure Kotlin, inspired by spark-java

• brianmadden/krawler (⭐127) - A web crawling framework written in Kotlin

• danneu/kog (⭐43) - A web framework focused on simplicity, middleware, and functional composition

• tipsy/javalin (⭐7.6k) - A Simple REST API Library for Java/Kotlin.

• laviua/komock (⭐10) - HTTP/Consul/SMTP/Spring Config mocker framework written in Kotlin

• hypercube1024/firefly (⭐296) - An asynchronous web framework for rapid development of high-performance web application.

• phenax/h (⭐18) - HTML templating library written in Kotlin

• SeunAdelekan/Kanary (⭐328) - A micro webframework for Kotlin

• spypunk/sponge (⭐1) - A website crawler and links downloader command line tool written in Kotlin

• alpas/alpas (⭐181) - Kotlin web framework inspired by Laravel/Rails. Easy, elegant and productive.

• AurityLab/graphql-kotlin-toolkit (⭐10) - GraphQL toolkit for Kotlin (includes code generator and spring boot integration)

• welvet/summer - Lightweight Jetty/JDBC wrapper library inspired by SparkJava and MyBatis with DI and Testing support for Kotlin

Libraries/Frameworks / Testing

• JetBrains/spek (⭐2.2k) - A specification framework for Kotlin.

• npryce/hamkrest (⭐344) - A reimplementation of Hamcrest to take advantage of Kotlin language features.

• nhaarman/mockito-kotlin (⭐3.1k) - Using Mockito with Kotlin.

• MarkusAmshove/Kluent (⭐867) - Fluent Assertion-Library for Kotlin.

• kotest/kotest (⭐4.5k) - Formerly known as KotlinTest, Kotest is a flexible and comprehensive testing tool that is multiplatform enabled.

• dmcg/konsent (⭐29) - An acceptance test library for Kotlin.

• dmcg/k-sera (⭐8) - A JMock wrapper for Kotlin.

• qwertukg/SeleniumBuilder (⭐55) - DSL for Selenium 2.0. Provide a possibility to write tests in Kotlin builder style.

• mockk/mockk (⭐5.5k) - Pure Kotlin mocking library.

• mvysny/DynaTest (⭐22) - Write your tests in DSL way. Runs on JUnit5 Platform.

• neworld/kupiter (⭐14) - Kotlin DSL for Junit5

• karumi/KotlinSnapshot (⭐165) - Verify your data with snapshot testing.

• dmcg/minutest (⭐102) - Simple, Expressive, Extensible Testing for Kotlin on the JVM

• krzema12/vis-assert (⭐6) - Test the shape of your functions!

• EranBoudjnah/RandomGenKt (⭐37) - Initialize instances of any class with generated data.

• from-source/kiwi (⭐17) - Fluent assertions library with support of json path.

• willowtreeapps/opentest4k (⭐20) - kotlin multiplatform implementation/bindings of opentest4j

Libraries/Frameworks / Dependency Injection

• Kodein-Framework/Kodein-DI (⭐3.2k) - Painless Kotlin Dependency Injection.

• Ekito/koin (⭐9.1k) - A functional Kotlin dependency injection framework for Android and JVM.

• Rasalexman/KODI (⭐15) - light-weight KOtlin Dependency Injection Framework with or without reflection module without kapt

• evant/kotlin-inject (⭐1.3k)

• corbella83/PopKorn (⭐155) - Forget about modules and components. DI can be simple

Libraries/Frameworks / Coroutines

• Kotlin/kotlinx.coroutines (⭐13k) - Libraries built upon Kotlin coroutines.

• cloudoptlab/cloudopt-next (⭐343) - A next-generation Java web lightweight framework based on vertx and kotlin.

• Rasalexman/coroutinesmanager (⭐15) - try-catch safety coroutines manager

• rozkminiacz/FlowRiddles (⭐36) - Repository for learning Kotlin Flow API

• KingFalse/harrier (⭐4) - Simpler use of multithreading in Kotlin.

Libraries/Frameworks / Functional Programming

• arrow-kt/arrow (⭐6.2k) - Functional companion to Kotlin's Standard Library.

• ReactiveX/RxKotlin (⭐7k) - RxJava bindings for Kotlin.

• kittinunf/Result (⭐920) - The modelling for success/failure of operations in Kotlin.

• brianegan/bansa (⭐444) - A state container for Kotlin & Java, inspired by Elm & Redux.

• beyondeye/Reduks (⭐111) - A "batteries included" port of Reduxjs for Kotlin+Android

• poetix/klenses (⭐48) - Lenses for Kotlin.

Libraries/Frameworks / Serialization

• Kotlin/kotlinx.serialization (⭐5.4k) - Kotlin multiplatform / multi-format reflectionless serialization

• cbeust/klaxon (⭐1.9k) - Lightweight library to parse JSON in Kotlin.

• FasterXML/jackson-module-kotlin (⭐1.1k) - Jackson module that adds support for serialization/deserialization of Kotlin classes and data classes.

• marifeta/kvalidator (⭐6) - Kotlin validator (compatible with laravel validation rules) for json kotlinx.serialization!

• aafanasev/kson (⭐109) - Auto-generate GSON type adapters for Kotlin data classes

• holgerbrandl/jsonbuilder (⭐18) - A tiny DSL to create json using idiomatic Kotlin

Libraries/Frameworks / Database

• JetBrains/Exposed (⭐8.4k) - Exposed is a prototype for a lightweight SQL library written over JDBC driver for Kotlin language.

• JetBrains/xodus (⭐1.2k) - Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.

• ebean-orm/ebean (⭐1.5k) - Ebean is a Java & Kotlin ORM including type safe kotlin queries

• jankotek/mapdb (⭐4.9k) - 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.

• seratch/kotliquery (⭐207) - A handy database access library in Kotlin.

• requery/requery (⭐3.1k) - Modern SQL based query & persistence for Java/Kotlin/Android.

• Ganet/rxaerospike (⭐7) - RxJava2 wrapper for aerospike-client-java.

• Raizlabs/DBFlow (⭐4.9k) - A blazing fast, powerful, and very simple ORM android database library that writes database code for you.

• KotlinPorts/kt-postgresql-async (⭐23) - Kotlin/Gradle port of mauricio's async driver for postgres/mysql.

• coupang/spring-data-requery (⭐46) - Spring Data for Requery (lightweight ORM)

Libraries/Frameworks / Tools

• Kotlin/dokka (⭐3.4k) - Documentation Engine for Kotlin.

• holgerbrandl/kscript (⭐2.1k) - Scripting utils for Kotlin.

• pinterest/ktlint (⭐6.3k) - An anti-bikeshedding Kotlin linter with built-in formatter.

• detekt/detekt (⭐6.3k) - Static code analysis for Kotlin.

• mkohm/detekt-hint (⭐80) - Detection of design principle violations as a plugin to detekt.

• cypressious/KotlinW (⭐17) - A small wrapper for the Kotlin compiler that can be used to execute .kts scripts.

• s1monw1/KtsRunner (⭐204) - Library for executing .kts files from regular Kotlin code using Java Scripting Engines API

• jmfayard/refreshVersions (⭐1.7k) - Better Gradle dependencies management inside the IDE. Search for available updates.

Libraries/Frameworks / Compiler Plugins

• google/ksp (⭐2.9k) - Kotlin Symbol Processing API

Libraries/Frameworks / Http Clients

• kittinunf/Fuel (⭐4.6k) - The easiest HTTP networking library for Kotlin/Android.

• jkcclemens/khttp - Kotlin HTTP requests library.

• rybalkinsd/kohttp (⭐480) - Kotlin DSL-based HTTP client.

• speekha/httpmocker (⭐178) - Kotlin library to handle offline mode easily with OkHttp.

Libraries/Frameworks / Editors

• JetBrains/intellij-community (⭐17k) - IntelliJ IDEA Community Edition

• alexmt/atom-kotlin-language (⭐26) - Adds syntax highlighting to Kotlin files in Atom

• vkostyukov/kotlin-sublime-package (⭐138) - A Sublime Package for Kotlin.

• udalov/kotlin-vim (⭐633) - Kotlin Syntax Highlighter for Vim.

• sargunster/kotlin-textmate-bundle (⭐12) - Kotlin bundle for TextMate.

• ice1000/NppExtension (⭐74) - Kotlin Language extension for Notepad++

• ftomassetti/kanvas (⭐143) - A truly hackable editor: simple, lightweight, understandable.

• fwcd/KotlinLanguageServer (⭐1.7k) - Smart code completion, diagnostics and more for Kotlin using the Language Server Protocol. VS Code extension included.

• mathiasfrohlich/vscode-kotlin (⭐203) - Kotlin language support for VS Code.

Libraries/Frameworks / Syntax Highlighters

• isagalaev/highlight.js (⭐24k) - Javascript syntax highlighter. (out-of-date)

• github/linguist (⭐12k) - For Ruby/Github, uses Sublime package

• cansik/kotlin-latex-listing (⭐124) - A syntax highlighting template for the Kotlin language in LaTeX listings.

• birkenfeld/pygments-main - Python syntax highlighter.

Libraries/Frameworks / Game Development

• AlmasB/FXGL (⭐4.4k) - JavaFX 8 Game Library written in Java + Kotlin

• icela/FriceEngine (⭐344) - Make game developing easy again!

• vassilibykov/AdventKT (⭐17) - A Kotlin-based DSL for text adventures, with a partial replica of the classic Colossal Cave as an example.

• Hexworks/zircon (⭐755) - An extensible text GUI library which targets multiple platforms and designed specifically for game developers, written in Kotlin.

• KogeLabs/Ockero (⭐75) - Ockero: Kotlin OpenGl Game Engine

Libraries/Frameworks / Misc

• themichailov/kache - Kotlin functions caching library, reducing count of function executions.

• puniverse/quasar (⭐4.6k) - Fibers, Channels and Actors for the JVM.

• mplatvoet/kovenant (⭐654) - Promises for Kotlin and Android

• mplatvoet/progress (⭐20) - Progress for Kotlin.

• hotchemi/khronos (⭐326) - An intuitive Date extensions in Kotlin.

• ingokegel/jclasslib (⭐2.8k) - jclasslib bytecode viewer is a tool that visualizes all aspects of compiled Java class files and the contained bytecode.

• debop/koda-time (⭐83) - Joda Time Extensions in Kotlin. (From Java 8 use java.time instead)

• MicroUtils/kotlin-logging (⭐2.7k) - Lightweight logging framework for Kotlin. Used as a wrapper for slf4j with Kotlin extensions.

• cesarferreira/kotlin-pluralizer (⭐50) - Kotlin extension to pluralize and singularize strings.

• just-ai/jaicf-kotlin (⭐244) - Kotlin framework for conversational voice assistants and chatbots development.

• pemistahl/lingua (⭐712) - A language detection library suitable for long and short text alike

• Lewik/klog (⭐11) - Minimalistic and multiplatform logging for Kotlin

• dotCipher/kase-format (⭐17) - String case conversion and detection library

• oolong-kt/oolong - Elm inspired Model-View-Update (MVU) implementation for Kotlin multiplatform.

Libraries/Frameworks / Parsers

• ParserKt/ParserKt (⭐14)

• h0tk3y/better-parse (⭐422) - A nice parser combinator library for Kotlin

• fork-handles/parser4k (⭐224) - Recursive descent parser combinator library

Libraries/Frameworks / Multiplatform

• ionspin/kotlin-multiplatform-bignum (⭐377) - Pure kotlin multiplatform arbitrary precision arithmetic library.

• davidepianca98/KMQTT (⭐197) - MQTT Broker library/executables for Kotlin multiplatform.

• GitLiveApp/firebase-kotlin-sdk (⭐1.2k) - A Kotlin-first Multiplatform SDK for Firebase supporting iOS, Android & Web

• DetachHead/kotlinxpath (⭐4) - A typesafe builder for Xpath with several useful helper functions that make Xpath easier to work with

Libraries/Frameworks / Extensions

• vanshg/KrazyKotlin (⭐86) - A collection of useful Kotlin Extension

Libraries/Frameworks / Configuration

• npryce/konfig (⭐281) - A Type Safe Configuration API for Kotlin

• mariomac/kaconf (⭐60) - KickAss Configuration. An annotation-based configuration system for Java and Kotlin

• config4k/config4k (⭐282) - A Kotlin wrapper for Typesafe Config

• jdiazcano/cfg4k (⭐80) - Flexible and easy to use config library written in kotlin.

• daviddenton/configur8 (⭐12) - A Kotlin port of Configur8 - A Type Safe Configuration API for Kotlin, extendable to user-defined types.

• ufoscout/properlty (⭐26) - Simple configuration library with placeholders resolution and zero magic!

• sksamuel/hoplite (⭐925) - A library for loading configuration files into typesafe Kotlin data classes in a boilerplate-free way

• Nohus/AutoKonfig - A Kotlin configuration library with batteries included. Type-safe, zero lines of setup.

• cdimascio/dotenv-kotlin (⭐513) - A zero-dependency module that loads environment variables from a .env file

• davidohana/kofiko-kotlin (⭐22) - Kofiko: Code-First configuration library. Lightweight, simple and minimal boilerplate.

Libraries/Frameworks / Graphics

• data2viz/data2viz (⭐415) - multiplatform dataviz library, d3js port

• kotlin-graphics/uno-sdk (⭐24) - Unofficial OpenGL SDK

• kotlin-graphics/ovr (⭐6) - Oculus binding

• kotlin-graphics/imgui (⭐604) - jvm port of imgui

• openrndr/openrndr (⭐891) - OPENRNDR, a framework for creative coding in Kotlin. Accelerated 2D and 3D graphics, vector graphics, shaders and animation

Apr 05 - Apr 11, 2021

Links / Blogs

• freecodecamp Kotlin article collection

Jan 25 - Jan 31, 2021

Libraries/Frameworks / I/O

• agcom/knio2 (⭐3) - Kotlinx coroutines extensions for Java NIO.2

Dec 14 - Dec 20, 2020

Libraries/Frameworks / I/O

• Dynamium/EVCalc - EVCalc is a calculation engine for mobile electric venicles (Electric scooters, electric unicycles, and so on) written in Kotlin.

Nov 30 - Dec 06, 2020

Libraries/Frameworks / Misc

• Kotlin/kotlinx-datetime (⭐2.4k) - A multiplatform Kotlin library for working with date and time.

Nov 23 - Nov 29, 2020

Libraries/Frameworks / API Clients

• JetBrains/space-kotlin-sdk (⭐46) - Kotlin client for JetBrains Space HTTP API

Oct 12 - Oct 18, 2020

Links / Resources

• Kotlin Standard Functions cheat-sheet - Learn how to use kotlin's standard library with lambda functions

Links / Courses

• Jetbrain's Hyperskill Academy - An interactive learning platform for Kotlin and other languages

• Google's Kotlin Codelab - Build your first Kotlin Android App

• Kotlin Course - Tutorial for Beginners by freeCodeCamp.org - Learn the Kotlin programming language in this introduction to Kotlin. Kotlin is a general purpose, open source, statically typed “pragmatic” programming language. It is used for many things, including Android development.

Libraries/Frameworks / Validation

• deva666/KValidation (⭐24) - Validation library

Libraries/Frameworks / Networking

• seniorjoinu/reliable-udp (⭐30) - Multiplexed, coroutine-powered reliable UDP for Kotlin using fountain codes

Kotlin JavaScript / Integration

• Kotlin/dukat (⭐558) - Converter of to Kotlin external declarations

Oct 05 - Oct 11, 2020

Links / Official Links

• Home Page

• Language Reference

• Try Kotlin!

• Blog

Links / Resources

• Jobs for Kotlin Developers - All job listings require Kotlin skills

• Podcast: Talking Kotlin - A Podcast on Kotlin and more

• Kotlin Kōans Android app - Learn Kotlin with short coding challenges on your Android device

• Kotlin Guide - An introduction to Kotlin

• Kotlin Quiz - Are You a Kotlin Expert? Test Your Skills with the Kotlin Quiz!

• Kotlin syntax cheat sheet

Links / Blogs

• Antonio Leiva - Android and any other monsters

• Kotlin Expertise Blog - A Blog with many articles covering basic and advanced Kotlin topics.

• SuperKotlin - A website about Kotlin

• KotlinTesting Blog - Blog about testing with Kotlin

Links / Courses

• Android Kotlin Fundamentals - Android Kotlin Fundamentals leads you through a series of codelabs that teach you the fundamentals of building Android apps in Kotlin.

• Kotlin for Java Developers - 160-minute Android Course.

• Kotlin Programming: Next Level Java Development - Learn coding in Kotlin from scratch!

• Introduction to Kotlin Programming by Hadi Hariri - From Hello World to Interoperability with Java

• Advanced Kotlin Programming - From Nested Functions to Asynchronous Programming

• Kotlin an Introduction - Caster.io - Kotlin introductory course at Caster.io

• Building Android Apps with Kotlin: Getting Started - Alex Dunn - Dive into the language set to replace Java while building Android applications. This course will give you a foundation of both Kotlin and Android skills to allow you to build apps faster and cleaner than ever before.

• Kotlin Bootcamp for Programmers - Google - Language fundamentals for developers

• Developing Android Apps with Kotlin - Google - Create concise, secure and performant apps with Kotlin

• Kotlin for Android Developers - Convert an Android app from Java to Kotlin

• Kotlin for Java Developers - JetBrains - Detailed Kotlin introductory course for Java developers

• Kotlin Online Courses at Classpert - Over 80 Kotlin Online Courses - Classpert Online Course and MOOC Search

• Test-Driven Development Tutorial for Android: Getting Started - By Victoria Gonda - Learn the basics of test-driven development, or TDD, and discover how to use TDD effectively when developing your Android apps!

Links / Books

• Kotlin in Action - Dmitry Jemerov, Svetlana Isakova

• Kotlin for Android Developers - Antonio Leiva

• Functional Programming in Kotlin - Marco Vermeulen, Rúnar Bjarnason, and Paul Chiusano

• Programming Kotlin - Stephen Samuel, Stefan Bocutiu

• Fundamental Kotlin, First Edition - Learn Kotlin quickly from the start

• Android Development with Kotlin - Marcin Moskala, Igor Wojda - Learn how to make Android development much faster using a variety of Kotlin features, from basics to advanced, to write better quality code

• Mastering Android Development with Kotlin - Miloš Vasić - Master Android development using a variety of Kotlin features

• Functional Kotlin - Learn Functional Programming in Kotlin from scratch and how to apply Functional Programming with Kotlin to real-life projects with popular libraries like Arrow. By Mario Arias, Rivu Chakraborty

• Reactive Programming in Kotlin - Rivu Chakraborty - Learn how to implement Reactive Programming paradigms with Kotlin, and apply them to Web programming with Spring Framework 5.0 as well as in Android Application Development. By Rivu Chakraborty

• Kotlin Apprentice - Irina Galata, Joe Howard, Richard Lucas & Ellen Shapiro - Beginning programming with Kotlin

• Android Apprentice - Darryl Bayliss & Tom Blankenship - Beginning Android programming using Kotlin

• Hands-on Design Patterns with Kotlin - Alexey Soshin - Book that covers building scalable applications using traditional, reactive, and concurrent design patterns in Kotlin

• Advanced Android App Architecture - In Advanced Android App Architectures, you'll find a diverse and hands-on approach to architecting your apps on Android

• Data Structures & Algorithms in Kotlin - Irina Galata & Matei Suica - A book that teaches you the fundamental tools of implementing key data structures in Kotlin, and how to use them to solve algorithms

• Head First Kotlin - Head First Kotlin is a complete introduction to coding in Kotlin

Libraries/Frameworks / Web

• apollographql/apollo-android (⭐3.8k) - Typesafe GraphQL client for the JVM and Kotlin native

Libraries/Frameworks / Testing

• willowtreeapps/assertk (⭐775) - assertions for kotlin inspired by assertj

Libraries/Frameworks / Dependency Injection

• JLLeitschuh/kotlin-guiced (⭐18) - Convenience Kotlin API over the Google Guice DI Library.

• authzee/kotlin-guice (⭐66) - Guice DSL extensions for Kotlin

Libraries/Frameworks / Coroutines

• konrad-kaminski/spring-kotlin-coroutine (⭐449) - Kotlin coroutine support for Spring.

• marcoferrer/kroto-plus (⭐493) - Protoc plugin for bringing together Kotlin, Protobuf, Coroutines, and gRPC.

Libraries/Frameworks / Functional Programming

• pardom/redux-kotlin (⭐271) - Direct port of Redux for Kotlin.

• reactor/reactor-core (⭐5k) - Non-Blocking Reactive Streams Foundation for the JVM. Natively supports Kotlin, since 3.1.0.M3.

Libraries/Frameworks / Serialization

• Shengaero/kotlin-json (⭐7) - A lightweight, stylistic, optimized, and multiplatform JSON library for Kotlin-JVM and Kotlin-JS

• s4kibs4mi/kotlin-jsonq (⭐30) - A simple Kotlin library to Query over Json Data.

Libraries/Frameworks / Database

• shyiko/levelkt (⭐15) - LevelDB client for Kotlin and/or Java 8+.

• SubiyaCryolite/jds (⭐22) - Jenesis Data Store: a dynamic, cross platform, high performance, ORM data-mapper. Designed to assist in rapid development and data mining.

• fluidsonic/fluid-mongo (⭐33) - Coroutine support for MongoDB built on top of the official Reactive Streams Java Driver

Libraries/Frameworks / Tools

• Vorlonsoft/EasyDokkaPlugin (⭐13) - Gradle Script plugin to generate documentation by Dokka for Kotlin and Java, Android and non-Android projects.

• Vorlonsoft/GradleMavenPush (⭐21) - Gradle Script plugin to upload Gradle Android/Kotlin/Java Artifacts to Maven repositories (JCenter, Maven Central, ...).

• kohesive/keplin (⭐25) - Secure Kotlin scripting and binary lambda-scripts.

Libraries/Frameworks / Compiler Plugins

• aafanasev/sekret (⭐112) - Kotlin compiler plugin to exclude secret properties from toString() of Data class

• AhmedMourad0/no-copy (⭐157) - A Kotlin compiler plugin that performs 'copy-erasure' on data classes.

Libraries/Frameworks / Continuous Integration

• danger/kotlin (⭐505) - Stop saying "you forgot to …" in code review in Kotlin

Libraries/Frameworks / Code Generators

• jhipster/jhipster-kotlin (⭐455) - A scaffold generator to generate web apps or APIs using springboot and angularJS or React

Libraries/Frameworks / Syntax Highlighters

• jneen/rouge (⭐3.3k) - A pure-ruby code highlighter that is compatible with pygments. (wip)

Libraries/Frameworks / Misc

• KotlinNLP/SimpleDNN (⭐98) - SimpleDNN is a machine learning lightweight open-source library part of KotlinNLP and has been designed to support relevant neural network architectures in natural language processing tasks.

Libraries/Frameworks / Parsers

• sargunster/CakeParse (⭐25) - Simple parser combinator library for Kotlin.

Libraries/Frameworks / Extensions

• hankdavidson/ktime (⭐26) - Extensions to the java8 time library

• LukasForst/katlib (⭐82) - A collection of Kotlin extension functions and utilities.

Libraries/Frameworks / Graphics

• java-opengl-labs/Vulkan (⭐51) - port of https://github.com/SaschaWillems/Vulkan (⭐10k)

• nwillc/ksvg (⭐80) - Kotlin SVG image generation DSL, supporting inline and file formats.

• markaren/three.kt (⭐208) - Kotlin port of three.js JavaScript 3D library

Libraries/Frameworks / Data Science

• Kotlin for Data Science - Kotlin for Data Science overview page

• breandan/kotlingrad (⭐530) - Shape-Safe Differentiable Programming with Algebraic Data Types.

• kiegroup/optaplanner - Constraint solving AI for planning and scheduling problems.

Libraries/Frameworks / Command Line Interface

• leprosus/kotlin-cli (⭐38) - Kotlin-CLI - command line interface options parser for Kotlin.

• jimschubert/kopper (⭐39) - A simple Kotlin option parser

Projects / Web

• cbedoy/DYUM (⭐2) - Basic Kotlin Implementation following MVP, and using Third Party library by Natural Analytics Language

• rocketraman/kotlin-web-hello-world (⭐8) - This project shows how to do a web-based "Hello World!" with Kotlin in combination with various JVM - based web frameworks.

• ivanpopelyshev/vertx-facebook-messenger (⭐8) - Seed project for facebook messenger bots. Vertx, Kotlin.

Projects / Misc

• sureshg/InstallCerts (⭐15) - Create a PKCS12 TrustStore by retrieving server certificates.

• vicboma1/GameBoyEmulatorEnvironment (⭐20) - Front-End developed with Kotlin Experimental for my GameBoy Emulator (coroutines).

• jenkinsci/doktor-plugin (⭐22) - Jenkins plugin for automated documentation uploading to Confluence.

Kotlin JavaScript / Frontend

• olegcherr/Aza-Kotlin-CSS (⭐85) - Kotlin DSL for CSS

Kotlin JavaScript / Build Tools

• huston007/kotlin-loader (⭐25) - Kotlin webpack loader.

Kotlin Native / Projects

• perses-games/konan-sfml (⭐18) - Kotlin native with SFML example

• JetBrains/kotlinconf-spinner (⭐628) - Simple spinner-like game intended to demonstrate capabilities of Kotlin/Native software stack.

Sep 28 - Oct 04, 2020

Links / Official Links

• Issue Tracker

• Twitter

Links / Resources

• Kotlin Subreddit

• Trending Kotlin on Github

• Programming Community Curated Resources for learning Kotlin

• LinkedIn: Kotlin Developers (Join!)

• Kotlin Cheat Sheet