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What’s cool for developers in Windows 11

Windows 11 brings new SDKs and a beautiful UI for new and existing apps.

What’s new in Windows 11

Discover the latest Windows 11 features for developers.

WHAT’S NEW

Hello, World!

Start coding, today! Learn about using Windows 11 features in your own apps.

START HERE

Code samples

Check out the latest Line of Business and consumer app samples using Windows 11 features.

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Windows Design

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 revitalizing your existing apps.

WINDOWS 11 DESIGN PRINCIPLES

Rounded Corners

Learn how to round your Win32 app's main window corners if the system doesn’t round them automatically.

ROUND UP

Snap Layout Menu

Here’s how to allow the snap layout menu to appear if the system does not provide it automatically.

SNAP TO IT

InfoBadge

An InfoBadge can be used when you want to bring the user's focus to a certain area of your app in an unintrusive way.

GET INFORMED
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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.

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Windows App SDK samples

This repository contains a growing number of samples for features shipping in the Windows App SDK.

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Windows App SDK API reference

Check out the new APIs in the Windows App SDK covering automation, app resource management, inking, composition, text rendering, camera support, and more.

WinRT APIs Win32 APIs

WinUI Controls Gallery

The interactive sample highlighting WinUI user interface controls.

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Pen haptics

Pen haptics

Discover how you can create Windows apps that provide natural, intuitive, and tactile user experiences with new haptic APIs for digital pens.

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Windows 11 on ARM

ARM64EC is a new application binary interface (ABI) for building apps for Windows 11 on ARM. Discover how you can build new native apps or incrementally transition existing apps to native performance on ARM.

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Become an Insider!

Get early access to Windows 11 builds and the development tools you need to update your existing app or creating brand new ones.

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