Uno Platform
Uno Platform is an open-source UI framework that enables developers to build single-codebase applications that run natively on Windows, WebAssembly (Web), Android, iOS, macOS, and Linux. It leverages the Microsoft WinUI and UWP APIs to create pixel-perfect, high-performance applications across all platforms using C# and XAML. The framework extends the Universal Windows Platform (UWP) model to non-Windows environments, allowing for code sharing of up to 99%.
Developers should use Uno Platform when they need to build cross-platform applications with a single codebase while maintaining native performance and UI fidelity, particularly for enterprise or complex applications where consistency across platforms is critical. It is ideal for teams familiar with C# and XAML who want to avoid learning multiple platform-specific frameworks, such as when migrating existing UWP/WinUI apps to other platforms or starting new projects targeting a broad range of devices.