Common code can depend on libraries to handle common tasks like HTTP communication, serialisation, database access, managing coroutines, etc

Multiplatform libraries help reuse common multiplatform logic between the common and platform-specific code.

It contains the language, core libraries and tools

Common Kotlin can run on all platforms.

To achieve all of this, Kotlin Multiplatform relies on some basic components that work together:

Creating CLI tools for multiple target platforms.

Creating multiplatform libraries that can be used in other Kotlin Multiplatform projects and applications.

Kotlin/JVM is used to implement the server side and Kotiln/JS to implement the client app

Sharing logic between the server side and the client side running in a browser.

Sharing application logic between mobile, web and/or desktop applications.

Sharing application logic between Android and iOS applications using Kotlin Multiplatform Mobile (a subset of Kotlin Multiplatform targeting the Android and iOS platforms).

Kotlin Multiplatform is a tool with multiple potential use cases:

With this approach the time spent implementing and maintaining the same code on multiple platforms can be greatly reduced, while still retaining the flexibility and benefits of native programming such as best-in-class performance, tailored APIs and common UI elements among others. Ever since it was first introduced, Kotlin’s ability to target multiple different platforms has been one of its key benefits.

Kotlin desktop app