Compose Multiplatform is a declarative framework for sharing UIs across multiple platforms with Kotlin. It shares most of its API with Jetpack Compose, the Android UI framework developed by Google. You can choose the platforms to share your UIs using Compose Multiplatform: iOS, Android, desktop, and web (via WebAssembly).

In this session, we will build a simple application from start to finish in Kotlin. In the process, you will learn how Compose Multiplatform and Kotlin Multiplatform enable sharing everything from the networking layer to business logic and the UI. The result is an app that can load and manipulate different images from an API that runs on Android, iOS, and desktop.

Along the way, you will get a grasp on the supporting tools, Fleet and Amper, both developed by the team at JetBrains.