Top Kotlin Multiplatform Libraries for iOS and Android App Development

Published December 11, 2024

• Network
• Repository
• Serializer
• Storage
• DI
• Image
• Audio
• Bluetooth
• Reactive
• Utility
• Debug
• Test
• Annotation Processor
• GUI
• Command Line Interface
• Architecture
• Docs
• Build & Development Tools
• Artificial Intelligence
• Social

• 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

• fuel - The easiest HTTP networking library for Kotlin backed by Kotlinx Coroutines.

• apollo - Multiplatform official GraphQL client.

• suparnatural-graphql - Strict type safe GraphQL client with support for composable links.

• 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.

• cognito-idp - Lightweight AWS Cognito Identity Provider client for Kotlin Multiplatform projects.

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

• kotlinx.serialization (official) - Kotlin multiplatform / multi-format serialization

• YAKL - A YAML 1.2 processor

• KoAP - CoAP encoder/decoder with support for UDP (RFC 7252), TCP (RFC 8323) and Observe (RFC 7641).

• 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.

• 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

• 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.

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

• 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.

• 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

• Kodein-DI - Painless Kotlin Dependency Injection

• 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.

• korim - Kotlin cORoutines IMaging, Bitmap and Vector graphics for Multiplatform Kotlin

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

• 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.

• 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

• coroutine (official) - Support for Kotlin coroutine.

• suparnatural-concurrency - Unified APIs such as Workers, Schedulers for cross-platform multithreading on iOS and Android.

• 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.

• kotlinx-datetime - Official date and time library

• klock - Multiplatform Date and time library for Kotlin

• island-time - A Kotlin Multiplatform library for working with dates and times

• time - Type-safe time calculations in Kotlin, on any platform

• 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

• 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.
  ![badge][badge-macos]

• krypt - Cryptography library. Support for SecureRandom, Hash(MD5/SHA1/SHA256), AES.

• kotlin-multiplatform-libsodium - A Kotlin Multiplatform wrapper for Libsodium cryptography library.

• 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)

• 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.

• 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.

• Kotlin utilities - Scala utility types: Option, Either, Try for Kotlin Multiplatform.

• kotlin-result - A multiplatform Result monad for modelling success or failure operations.

• 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.

• 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

• Atrium - A multiplatform assertion library for Kotlin.

• konform - Portable validations.

• kotest-assertions - Multiplatform assertions and test utilities.

• kotest-framework - Multiplatform test framework for Kotlin.

• mockk - Mocking library for test.

• 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.

• 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

• 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

• Clikt - Multiplatform command line interface parsing for Kotlin

• Command_Parser - Multiplatform command parser using kotlinx.coroutines

• Mordant - Multiplatform text styling for Kotlin command-line applications

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

• 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)

• ReKamp - Port of ReKotlin to Kotlin Multiplatform, which corresponds to ReKotlin/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.

• KStateMachine - KStateMachine is a Kotlin DSL library for creating state machines and hierarchical state machines (statecharts).

• Premo — Presentation Model (aka View Model) and Navigation. Focus on writing logic instead of solving common and boring UI related issues: lifecycle, persistence, navigation, etc.

• multiplatform-viewmodel — Shared ViewModel in Kotlin Multiplatform

• 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.

• dokka (official) - Documentation Engine for Kotlin.

• 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.
  
  => Deprecated move here

• kotlin-dce - This tool allows to strip out unused properties, functions and classes from the generated JS.

• 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.

• 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.

• tgbotapi - Strongly-typed API wrapper for Telegram Bot API with fully covered API and a lot of additional DSLs on top of base API.

• Multiplatform expressions evaluator - Runtime infix expressions evaluator.