Windows App SDK
The Windows App SDK — the new name for Project Reunion and WinUI 3 — brings a unified set of APIs and tools for developing desktop apps to Windows 11 and Windows 10.Choose your UI, language, and technology then share your apps with millions.LEARN MORE
Learn how to use WinUI controls in your new apps, or update your existing MFC, WinForms and WPF projects.LEARN MORE
WinRT API reference
Check out the hundreds of new APIs covering automation, app resource management, inking, composition and more.LEARN MORE
Windows 11 has a focus on geometry, color, layering, typography and materials that brings a fresh new look for you to leverage micro-interactions and window snapping experiences, whether creating new apps or revitalize your existing apps.WINUI CONTROLS GALLERY
Use Game Stack to find the tools and services used by PC game developers around the world. The new Game Development Kit (GDK) offers access to the SDK with tools, libraries, and documentation needed to build amazing games for Windows.FIND OUT MORE
Distribute your work to an audience of millions! Redesigned for developers to have new channels for discovery, including integration with your website and open support for more kinds of apps to run on Windows.DISCOVER NOW
Open for all!
Distribute your desktop app via the Store, no matter what app framework or packaging tool you use: Win32, .NET, Java, Electron, or MSIX.LEARN MORE
Build Progressive Web Apps with PWABuilder 3, debug with PWA support in the Microsoft Edge dev tools, and publish your PWA in the Store, including access to new commerce tools and capabilities!LEARN MORE
Become an Insider!
Get early access to Windows 11 and the development tools you need to update your existing app, or create brand new ones.SIGN UP