Build an iOS and Android app with shared business logic and UI code in C#.
Create a desktop app for Windows and Mac that reuses the same codebase as your mobile app.
Ship a cross-platform app without maintaining separate codebases for each platform.
Develop and test mobile apps on emulators built into Visual Studio without physical devices.
Requires .NET SDK installation and platform-specific SDKs (Android SDK, Xcode for iOS, etc.) depending on target platforms.
dotnet/maui is the source code for .NET MAUI (Multi-platform App UI), Microsoft's framework for building native mobile and desktop applications from a single shared codebase. Instead of writing separate apps for iPhone, Android, Windows, and Mac, you write one app in C# and XAML (a markup language for describing user interfaces) and MAUI compiles it to run natively on each platform. The key benefit is code reuse: business logic, data handling, and much of the user interface can be shared across all target platforms, while still producing apps that feel native and use the platform's own controls and capabilities. It is the successor to Xamarin.Forms, expanding beyond mobile to also cover Windows and macOS desktop apps. You would use .NET MAUI when you're building a cross-platform app and your team already works in the .NET ecosystem (C#, Visual Studio), or when you need to ship to both mobile and desktop without maintaining separate codebases. It integrates with Visual Studio and includes emulators for testing on Android and iOS without physical devices. The framework targets Android, iOS, iPadOS, macOS (via Mac Catalyst), and Windows. You create a new project with a single command, and it sets up the shared structure automatically. It is written in C# and is an official Microsoft open-source project.
Generated 2026-05-18 · Model: sonnet-4-6 · Verify against the repo before relying on details.