WinUI 3

Native UI layer for modern Windows apps

WinUI 3 is Microsoft's native user interface layer for Windows apps. It provides modern, high-performance controls and styles that work across Windows desktop and UWP applications. As the latest generation of the Fluent Design System, WinUI 3 enables developers to create visually stunning applications with built-in support for acrylic, reveal effects, and animations. It ships as part of the Windows App SDK, decoupled from the operating system for independent release cadence.