A UI framework that lets C# developers write code once to build apps for Windows, Mac, Linux, and mobile, serving as a cross-platform alternative to WPF.

A cross-platform framework by Microsoft that lets you write code once in C# and deploy to both mobile and desktop devices.

Source code for Microsoft's .NET runtime, enabling developers to build software in C# across various devices, acting as an engine behind many apps.

An open-source cross-platform tool enabling C# developers to build native mobile, desktop, and web apps with a single codebase.