Compose Multiplatform

Choose target platforms and share the same declarative UI model

Projects can share UI across selected combinations of Android, iOS, desktop operating systems, and web. Android follows the Jetpack Compose experience, while desktop adds hardware-accelerated rendering and extensions for menus, keyboard shortcuts, window manipulation, and notifications.

Sources: [1]

Reach native APIs and embed existing platform views from shared UI

Because the framework builds on Kotlin Multiplatform, shared code can access platform APIs such as the iOS Camera API. It can also embed native UI components such as MKMapView, allowing projects to bridge to platform-specific implementation instead of replacing every screen with common code.

Sources: [1]

Fits Kotlin teams that want shared UI without giving up platform integration

It is a candidate for teams building Android and iOS screens together or carrying one interface design across mobile and desktop. It suits projects that want to reuse Kotlin and Jetpack Compose concepts while retaining platform APIs and native UI where they add value.

Evaluate target maturity, toolchains, and compatible versions separately

The v1.12.1 README labels web support as Beta. Compose HTML targets Kotlin/JS and is not itself a multiplatform library. Shared UI also does not remove per-platform work for packaging, permissions, native integration, and testing.

Projects need Kotlin and Gradle plus Android or Apple tooling for the chosen targets. Releases specify compatible Kotlin, Compose Gradle plugin, and Jetpack-family library versions, so existing projects should review compatibility and migration notes before upgrading. The repository is Apache-2.0 licensed.

Sources: [1][3][4]