Stability of supported platforms
Edit pageLast modified: 17 April 2025Kotlin Multiplatform allows you to create applications for various platforms and share code across them so that you can reach users on their favorite devices. Different platforms may have varying levels of stability based on their support by the core Kotlin Multiplatform technology for code sharing and by the Compose Multiplatform UI framework.
This page contains information to help you identify which platforms align with your project needs, along with details of their stability level.
General Kotlin stability levels
Here's a quick guide to stability levels in Kotlin and their meaning:
Experimental means "try it only in toy projects":
We are just trying out an idea and want some users to play with it and give feedback. If it doesn't work out, we may drop it any minute.
Alpha means "use at your own risk, expect migration issues":
We intend to productize this idea, but it hasn't reached its final shape yet.
Beta means "you can use it, we'll do our best to minimize migration issues for you":
It's almost done, user feedback is especially important now.
Still, it's not 100% finished, so changes are possible (including ones based on your own feedback).
Watch for deprecation warnings in advance for the best update experience.
We collectively refer to Experimental, Alpha and Beta as pre-stable levels.
Stable means "use it even in most conservative scenarios":
It's done. We will be evolving it according to our strict backward compatibility rules.
Current platform stability levels for the core Kotlin Multiplatform technology
Here are the current platform stability levels for the core Kotlin Multiplatform technology:
Platform | Stability level |
|---|---|
Android | Stable |
iOS | Stable |
Desktop (JVM) | Stable |
Server-side (JVM) | Stable |
Web based on Kotlin/Wasm | Alpha |
Web based on Kotlin/JS | Stable |
watchOS | Beta |
tvOS | Beta |
Kotlin Multiplatform supports more native platforms than are listed here. To understand the level of support for each of them, see Kotlin/Native target support.
For more information on the stability levels of Kotlin components like Kotlin Multiplatform, see Current stability of Kotlin components.
Compose Multiplatform UI framework stability levels
Here's a quick guide to platform stability levels for the Compose Multiplatform UI framework and their meaning:
Experimental means "it's under development":
Some features might not be available yet and those features that are present might have performance issues or bugs.
There might be changes in the future, and breaking changes may occur frequently.
Alpha means "use at your own risk, expect migration issues":
We have decided to productize platform support but it hasn't taken its final shape yet.
Beta means "you can use it, and we'll do our best to minimize migration issues for you":
It's almost done, so user feedback is especially important now.
It's not 100% finished yet, so changes are possible (including ones based on your own feedback).
We refer to Experimental, Alpha, and Beta collectively as pre-stable levels.
Stable means "you can use it even in the most conservative of scenarios":
The framework provides a comprehensive API surface that allows you to write beautiful, production-ready applications, without encountering performance or other issues in the framework itself.
API-breaking changes can only be made 2 versions after an official deprecation announcement.
Current platform stability levels for Compose Multiplatform UI framework
Platform | Stability level |
|---|---|
Android | Stable |
iOS | Beta |
Desktop (JVM) | Stable |
Web based on Kotlin/Wasm | Alpha |
What's next?
See Recommended IDEs to learn which IDE is better for your code-sharing scenario across different combinations of platforms.