Can You Run a Kotlin Multiplatform Project on Windows?

Many developers ask this question when they first hear about Kotlin Multiplatform. The short answer is yes and no. You can start a Kotlin Multiplatform project on Windows, but you cannot run everything from there. In this post, we will break down what actually works, what does not, and why this confusion exists in the first place.

The Common Misunderstanding About KMP

Kotlin Multiplatform is often described as write once and run everywhere. That statement is only partially true. Many developers assume that if they are using Windows, they can build and run Android, iOS, desktop, and web targets all from the same machine. This is where problems start. The reality is simpler and more strict.

Kotlin Multiplatform shares code, not build environments.

What Actually Works on Windows

If you are using Windows, here is what you can do confidently with Kotlin Multiplatform. You can write shared business logic using Kotlin. You can run Android applications without any limitation. You can build and run desktop applications using Compose Multiplatform. You can also run web targets when configured correctly.

What Does Not Work on Windows

This is the part that causes the most confusion. You cannot build or run iOS apps from a Windows machine. You also cannot produce macOS builds from Windows. This limitation does not come from Kotlin Multiplatform itself. It comes from Apple’s toolchain requirements. Xcode and Apple build tools only run on macOS.

If your project targets iOS or macOS, a Mac is mandatory.

The One Rule You Should Remember

You can develop shared KMP code on Windows. You can test Android, desktop, and web targets locally. But the moment iOS or macOS enters the picture, you must move to a Mac. 

That is the real rule.

Does KMP Still Make Sense for Android Developers

Yes, absolutely. If you are an Android developer using Windows, Kotlin Multiplatform still gives you massive value. You get shared business logic, cleaner architecture, and future flexibility if your team later adds a Mac to the workflow. You just need to understand the boundaries clearly.

Final Thoughts

Kotlin Multiplatform is powerful, but it is not magic. It removes duplicated code, not platform rules. Once you understand what runs where, KMP becomes much easier and far less confusing. If you want more practical Kotlin Multiplatform guidance without hype, follow Coding Reel for clear and honest explanations.