Libraries

• Network

  • Ktor - Framework for quickly creating connected applications in Kotlin with minimal effort
  • ktor-client-oauth-feature - Ktor Client Feature for handling OAuth token refreshes
  • kmp-tor - Embed Tor into your application.
  • Ktorfit - HTTP client / Kotlin Symbol Processor for Kotlin Multiplatform (Js, Jvm, Android, Native, iOS) using KSP and Ktor clients inspired by Retrofit
  • cognito-idp - Lightweight AWS Cognito Identity Provider client for Kotlin Multiplatform projects.
  • fuel - The easiest HTTP networking library for Kotlin backed by Kotlinx Coroutines.
  • rsocket-kotlin - [RSocket](https://rsocket.io) Kotlin multi-platform implementation based on [kotlinx.coroutines](https://github.com/Kotlin/kotlinx.coroutines) and [Ktor](https://github.com/ktorio/ktor).
  • kotliny.network - Simple, powerful and lightweight Kotlin Multiplatform Network Client.
  • kgql - GraphQL Document wrapper generator for Kotlin Multiplatform Project and Android
  • webrtc-kmp - WebRTC Kotlin Multiplatform SDK.
  • apollo - JSON-RPC Kotlin Multiplatform client.
  • krossbow - A Kotlin multiplatform coroutine-based STOMP client over websockets
  • Connectivity status - Monitor the internet connection status of your device on Android and iOS.
  • Highlights - Kotlin Multiplatform syntax highlighting engine.
  • apollo - Multiplatform official GraphQL client.
  • suparnatural-graphql - Strict type safe GraphQL client with support for composable links.
  • apollo - Multiplatform official GraphQL client.

• Repository

  • Store - A Kotlin Multiplatform library for building network-resilient applications.

• Serializer

  • kotlinx.serialization (official) - Kotlin multiplatform / multi-format serialization
  • YAKL - A YAML 1.2 processor
  • KoAP - CoAP encoder/decoder with support for UDP ([RFC 7252](https://tools.ietf.org/html/rfc7252)), TCP ([RFC 8323](https://tools.ietf.org/html/rfc8323)) and Observe ([RFC 7641](https://tools.ietf.org/html/rfc7641)).
  • Pbandk - Kotlin code generator and runtime for Protocol Buffers
  • Kase64 - Base64 encoder/decoder for Kotlin/Multiplatform. Supports standard and URL-safe encodings.
  • Kex - Hex string encoder/decoder for Kotlin/Multiplatform.
  • Ktoml - MPP serialization library (decoder/encoder) for TOML format.
  • encoding - Rfc 4648 Section 4-8 compliant encoding (Base 16, 32 Crockford, 32 Default, 32 Hex, 64 Default, 64 Url Safe).
  • parcelize - Implement Android `Parcelable` from common code.
  • Ktoml - MPP serialization library (decoder/encoder) for TOML format.

• Storage

  • SQLDelight - Generates typesafe Kotlin APIs from SQL.
  • SQLiter - Minimal multiplatform sqlite library
  • Door - Room for Kotlin Multiplatform.
  • Realm - Kotlin Multiplatform and Android SDK for the Realm Mobile Database: Build Better Apps Faster.
  • Kodein-DB - Embedded NoSQL database
  • Couchbaselite - Kotlin Multiplatform wrapper for the Couchbase Lite Mobile Database.
  • multiplatform-settings - A Kotlin Multiplatform library for saving simple key-value data.
  • KVault - Secure key-value storage for Kotlin Multiplatform projects.
  • Kissme - Kissme: Kotlin Secure Storage Multiplatform
  • Multiplatform-Preferences - Kotlin Multi Platform Preferences, for android an ios : SharedPreferences & NSUserDefault.
  • kds - Multiplatform coroutine-based kotlin library for saving Serializables with kotlinx.serialization and delegates.
  • Kottage - Kotlin Multiplatform Key-Value Store Local Cache Storage for Single Source of Truth.
  • Universal-Cache - Kotlin Flow caching and request sharing. Main idea: don't request data more times than it's needed.
  • okio - A modern I/O library for Android, Java, and Kotlin Multiplatform.
  • KStore - A tiny Kotlin multiplatform library that assists in saving and restoring objects to and from disk using kotlinx.coroutines, kotlinx.serialisation and okio.
  • Kfswatch - Kotlin Multiplatform File System Watcher
  • suparnatural-fs - Kotlin Multi Platform File System access library for `iOS` and `Android`.
  • suparnatural-cache - A superfast, thread safe in-memory cache with configurable hashing schemes backed by persistent stores with blocking/non-blocking I/O.
  • Kodein-DB - Embedded NoSQL database

• DI

  • Koin - A pragmatic lightweight dependency injection framework for Kotlin
  • PopKorn - Forget about modules and components. DI can be simple.
  • kotlin-inject - Dependency injection lib for kotlin.
  • Koject - DI Container library for Kotlin Multiplatform.
  • Kodein-DI - Painless Kotlin Dependency Injection

• Image

  • Kraphviz - [Graphviz](https://graphviz.org/) for Kotlin Multiplatform.
  • Kim - Kotlin Image Metadata - Kotlin Multiplatform library for reading and writing image metadata.
  • korim - Kotlin cORoutines IMaging, Bitmap and Vector graphics for Multiplatform Kotlin

• Audio

  • korau - Pure Kotlin WAV, MP3 and OGG vorbis decoders
  • korau - Pure Kotlin WAV, MP3 and OGG vorbis decoders

• Bluetooth

  • Blue-Falcon - A Bluetooth kotlin multiplatform "Cross-Platform" library for iOS and Android
  • Kable - Simple Coroutines-powered API for interacting with Bluetooth Low Energy devices.

• Reactive

  • Reaktive - Kotlin multi-platform implementation of Reactive Extensions
  • RxCommon - Multiplatform implementation of ReactiveX providing a common way to build one set of business logic for native, iOS, Javascript, Android, JVM, and other platforms
  • Multiplatform-LiveData - Multiplatorm implementation of LiveDatas / MVVM in kotlin android & native ios

• Utility

  • coroutine (official) - Support for Kotlin coroutine.
  • Koru - Coroutine wrappers for Kotlin Native generated from annotations.
  • KMP-NativeCoroutines - Library to use Kotlin Coroutines from Swift code in KMP apps.
  • FlowExt - Kotlinx Coroutines Flow Extensions. Extensions to the Kotlin Flow library.
  • time - Type-safe time periods for the Kotlinx-datetime multiplatform date/time library
  • fluid-time - Kotlin multiplatform date & time library
  • kcron - Kotlin multiplatform Cron library
  • kotlinx-datetime - Official date and time library
  • island-time - A Kotlin Multiplatform library for working with dates and times
  • time - Type-safe time calculations in Kotlin, on any platform
  • Kronos Multiplatform - Network Time Protocol (NTP) library
  • SemVer-KMP - A Kotlin library for Semantic Versioning with ranges and other features.
  • kotlin-semver - Semantic Versioning library for Kotlin Multiplatform.
  • Multiplatform-Bus - Kotlin event-bus compatible with Android & native iOS.
  • Event4k - MultiPlatform Kotlin EventBus library - simple, bidirectional, concurrent.
  • kotlin-multiplatform-bignum - A Kotlin multiplatform library for arbitrary precision arithmetics
  • kotlinx-murmurhash - Multiplatform library for MurmurHash, a non-cryptographic hash function for general hash-based lookup focused on simplicity and performance.
  • krypt - Cryptography library. Support for SecureRandom, Hash(MD5/SHA1/SHA256), AES.
  • kotlin-multiplatform-libsodium - A Kotlin Multiplatform wrapper for Libsodium cryptography library.
  • cryptography-kotlin - Type-safe Multiplatform cryptography library for Kotlin which doesn't implement any cryptography algorithm on its own, but wraps well-known future-proof solutions like [OpenSSL 3.x](https://www.openssl.org), [WebCrypto](https://developer.mozilla.org/en-US/docs/Web/API/Web_Crypto_API) or [JCA](https://docs.oracle.com/en/java/javase/17/security/java-cryptography-architecture-jca-reference-guide.html).
  • KotlinCrypto/hash - Hash functions (MD5/SHA1/SHA2/SHA3).
  • KotlinCrypto/MACs - Message Authentication Code functions (Hmac MD5/SHA1/SHA2/SHA3, KMAC).
  • KotlinCrypto/sponges - Sponge functions & state (Keccak-p).
  • KotlinCrypto/secure-random - Cryptographically secure random number generator, `SecureRandom`.
  • FuzzyWuzzy-Kotlin - Fuzzy string matching on collections. Port of python & java library.
  • kasechange - Multiplatform Kotlin library to convert strings between various case formats including Camel Case, Snake Case, Pascal Case and Kebab Case.
  • kotlin-multiplatform-diff - Multiplatform Kotlin library for calculating text differences.
  • doistx-normalize - - Kotlin Multiplatform library for string unicode normalization ([UAX #15](https://unicode.org/reports/tr15/)).
  • keyboard-mouse-kt - Multiplatform Kotlin library for interacting with global keyboard and mouse events and states.
  • Kotlin-Multiplatform-Firebase - Kotlin Multiplatform - Android/iOS/Web/Node.Js(Firebase)
  • FirestoreKMP - Firestore KMP Library
  • measurer - Google Analytics(using measurement protocol).
  • SegmenKT - A Segment wrapper for Kotlin Multiplatform.
  • sentry-kotlin-multiplatform - [Sentry](https://sentry.io/) SDK for Kotlin Multiplatform.
  • AtomicFu - The idiomatic way to use atomic operations in Kotlin
  • uuid - Kotlin Multiplatform UUID
  • Multiplatform Paging - Kotlin Multiplatform library for Pagination on Android and iOS
  • Stately - The library is set of multithreaded collection classes that will allow multithreaded mutation in Kotlin/Native.
  • coroutineworker - Kotlin Coroutine-based workers for native
  • Measured - Intuitive, type-safe units of measure.
  • KotlinCrypto/endians - Utils for converting `Short`, `Int`, `Long` to/from `BigEndian` and `LittleEndian` bytes.
  • kotlin-result - A multiplatform Result monad for modelling success or failure operations.
  • ApiResult - A monad for declarative & functional error-handling with a rich DSL.
  • Résultat - A fork of Kotlin Result with a loading state.
  • value-clazz - Functionally equivalent to a Kotlin `value class` that implements an interface, but inheritance based and compiles to platform code.
  • ktmpwasm - A WebAssembly interpreter for Kotlin Multiplatform.
  • XMP Core for Kotlin Multiplatform - Kotlin Multiplatform port of Adobe's XMP SDK.
  • RSS-Parser - A Kotlin Multiplatform library to parse a RSS Feed
  • suparnatural-concurrency - Unified APIs such as Workers, Schedulers for cross-platform multithreading on `iOS` and `Android`.
  • Kotlin utilities - Scala utility types: `Option`, `Either`, `Try` for Kotlin Multiplatform.
  • klock - Multiplatform Date and time library for Kotlin
  • krypt - Cryptography library. Support for SecureRandom, Hash(MD5/SHA1/SHA256), AES.
  • FirestoreKMP - Firestore KMP Library
  • AtomicFu - The idiomatic way to use atomic operations in Kotlin

• Debug

  • Napier - Logging library for Kotlin Multiplatform.
  • KmLogging - High performance, composable multiplatform logging.
  • klogger - Logging library for Kotlin Multiplatform.
  • Multiplatform-Log - Logging library for Kotlin Multiplatform.
  • Kermit - Kotlin Multiplatform logging utility with composable log outputs and prebuilt loggers.
  • Log4k - Logging library for Kotlin Multiplatform.
  • Cabret-Log - Method call logging for Kotlin Multiplatform
  • KmmAnkoLogger - fork of the AnkoLogger for use it with Kotlin Multiplatform Mobile
  • klogger - Logging library for Kotlin Multiplatform.

• Test

  • assertk - Assertions for kotlin inspired by assertj.
  • Atrium - A multiplatform assertion library for Kotlin.
  • konform - Portable validations.
  • Mockative - Mocking for Kotlin/Native and Kotlin Multiplatform using the Kotlin Symbol Processing API (KSP)
  • MocKMP - A Kotlin/Multiplatform Kotlin Symbol Processor that generates Mocks & Fakes.
  • kotlinx-resources - Multiplatform library for reading resources in tests.
  • Truthish - Multiplatform library with a testing API inspired by Google Truth.
  • testmints - Lightweight test semantic-sugar, to improve readability.
  • jsmints - A suite of libraries and gradle plugins for working with Kotlin JS, with a focus on testing and version updating.
  • mockk - Mocking library for test.
  • kotest-framework - Multiplatform test framework for Kotlin.
  • MocKMP - A Kotlin/Multiplatform Kotlin Symbol Processor that generates Mocks & Fakes.

• Annotation Processor

  • MpApt - Kotlin Native/JS/JVM Annotation Processor library
  • kotlin-native-suspend-function-callback - Kotlin Multiplatform compiler plugin to generate a callback implementation for suspended functions so they are visible from Kotlin Native
  • trckr - KSP processer that simplifies the collection of analytics
  • KMP-ComposeUIViewController - KSP library for generating ComposeUIViewController and UIViewControllerRepresentable files when using Compose Multiplatform for iOS

• GUI

  • moko-widgets - Declarative UI and screens management in common code for mobile (android & ios) Kotlin Multiplatform development
  • kgl - This library provides a thin OOP wrapper with DSLs to make programming with vulkan easier.
  • kotlin-libui - Kotlin/Native interop to libui: a portable GUI library
  • kotlin-material-ui - Kotlin Wrapper Library of Material-UI
  • muirwik - Kotlin Wrapper Library of Material-UI
  • compose-macos-theme - Multiplatform MacOS theme written in Compose UI
  • componentbox - A Kotlin multiplatform library for building dynamic server-driven UI
  • kontrol - A Kotlin Multiplatform library for creating a debugging menu
  • Material Theme Preferences - Switching Dark/Light Material themes on Compose
  • DrawBox - The first multiplatform library to draw anything on canvas.
  • typist-cmp - A Highly Customisable Typing Animation Library for Compose Multiplatform (Android & iOS)
  • koala-plot - A Compose Multiplatform based charting and plotting library written in Kotlin

• Command Line Interface

  • Clikt - Multiplatform command line interface parsing for Kotlin
  • Kotter - Multiplatform library for Kotlin command-line applications with support for text styling, animations, timers, and input.
  • Mordant - Multiplatform text styling for Kotlin command-line applications
  • Command_Parser - Multiplatform command parser using kotlinx.coroutines

• Firebase

  • Firebase Kotlin SDK - Firebase SDK for Kotlin Multiplatform projects (Firebase Authentication, Realtime Database, Cloud Firestore, Cloud Functions, Cloud Messaging and Cloud Storage).
  • Firebase Kotlin SDK - Firebase SDK for Kotlin Multiplatform projects (Firebase Authentication, Realtime Database, Cloud Firestore, Cloud Functions, Cloud Messaging and Cloud Storage).

• Architecture

  • kompass - Kotlin Multiplatform Router for Android and iOS
  • Decompose - Kotlin Multiplatform lifecycle-aware business logic components (aka BLoCs) with routing functionality and pluggable UI (Jetpack Compose, SwiftUI, JS React, etc.), inspired by Badoos RIBs fork of the Uber RIBs framework.
  • oolong - MVU for Kotlin Multiplatform
  • moko-mvvm - MVVM architecture components for mobile multiplatform with LiveData (iOS and Android)
  • MVIKotlin - MVI framework for Kotlin Multiplatform.
  • Orbit MVI - MVI framework for Kotlin Multiplatform.
  • ReduxKotlin - Redux implementation for Kotlin (supports multiplatform JVM, native, JS, WASM)
  • FlowMVI - Plugin-based Kotlin Multiplatform MVI framework.
  • ReKamp - Port of [ReKotlin](https://github.com/ReKotlin/ReKotlin) to Kotlin Multiplatform, which corresponds to [ReKotlin/1.0.4](https://github.com/ReKotlin/ReKotlin/releases/tag/1.0.4).
  • Kaskade - Simplifying UI state management in Kotlin Multiplatform.
  • Flywheel - A simple and predictable state management library inspired by Redux and a few more. Fully built on top of coroutines using the concept of [actors](https://www.brianstorti.com/the-actor-model/).
  • KStateMachine - KStateMachine is a Kotlin DSL library for creating state machines and hierarchical state machines (statecharts).
  • Premo
  • multiplatform-viewmodel
  • Direkt - Kotlin Multiplatform Router for Android, iOS, Js
  • compose_bloc - State Management and Navigation Library for Jetpack Compose and Compose Multiplatform.
  • Ballast - Opinionated Application State Management framework for Kotlin Multiplatform
  • Kotlin Bloc - A simple, predictable and composable UI framework for Kotlin Multiplatform
  • kmp-viewmodel - Shared ViewModel in Kotlin Multiplatform - A Kotlin Multiplatform library that provides shared MVVM for UI applications. Components are lifecycle-aware on Android.
  • moko-template - Template project of a Mobile (Android & iOS) Kotlin MultiPlatform project with the MOKO libraries and modularized architecture
  • KMMT - KMMT is a Multi-Module KMM based project template designed to simplify the KMM development. It uses a simplified approach that can be shared both in android and iOS easily. This template include network module, persistence module, resource module, analytics module ( with ios native library integration), domain module, presenter module etc.
  • KStateMachine - KStateMachine is a Kotlin DSL library for creating state machines and hierarchical state machines (statecharts).

• Docs

  • dokka (official) - Documentation Engine for Kotlin.

• Build & Development Tools

  • BuildKonfig - It reads values from properties and adds those into Build config like Android.
  • kotlin-native-cocoapods - Gradle plugin for configuring Kotlin/Native with Cocoapods.
  • kotlin-frontend-plugin (official) - ~~Gradle plugin for frontend development.~~
  • xcode-kotlin - Kotlin Native Xcode Plugin
  • xcode-compat(official) - AppCode helper for Kotlin/Native and Xcode
  • KotlinXcodeSync - Sync Kotlin files with an Xcode project
  • kotlinx-benchmark(official) - https://github.com/Kotlin/kotlinx-benchmark
  • mobile-multiplatform-gradle-plugin - Gradle plugin to make Multiplatform projects settings simplier
  • kotlinx-ast(official) - Generic AST parsing library for kotlin multiplatform
  • KaMPKit - KaMP Kit by Touchlab is a collection of code and tools designed to get your mobile team started quickly with Kotlin Multiplatform
  • Zakadabar - A Kotlin Multiplatform library for full-stack software development
  • multiplatform-swiftpackage - This is a Gradle plugin for Kotlin Multiplatform projects that generates an XCFramework for your native Apple targets and creates a matching Package.swift file to distribute it as a binary target.
  • Swift Klib - This is a Gradle Plugin to build Swift code as part of your Kotlin Multiplatform project. With this plugin, you can access Swift-only iOS libraries, such as CryptoKit and experiment with Swift to Kotlin interoperability.
  • here
  • kotlin-dce - This tool allows to strip out unused properties, functions and classes from the generated JS.
  • kotlin-native-cocoapods - Gradle plugin for configuring Kotlin/Native with Cocoapods.
  • KotlinXcodeSync - Sync Kotlin files with an Xcode project

• Artificial Intelligence

  • 2P-Kt - A Kotlin-based, multi-platform, open ecosystem for _symbolic_ artificial intelligence (AI) and logic programming (LP), currently supporting many facilities for LP and a full-fledged, extensible, ISO-standard Prolog solver.
  • Y-Chat - Y—Chat is a Kotlin Multiplatform (KMP) project that provides a simple API for integrating the powerful ChatGPT language model developed by OpenAI into mobile applications running on multi platforms.

• Social

  • tgbotapi - Strongly-typed API wrapper for [Telegram Bot API](https://core.telegram.org/bots/api) with
  • tgbotapi - Strongly-typed API wrapper for [Telegram Bot API](https://core.telegram.org/bots/api) with

• Math

  • Multiplatform expressions evaluator - Runtime infix expressions evaluator.