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Build native Windows apps with WinUI

Create modern desktop experiences with WinUI 3, the Windows App SDK, and the tools you already use with C# or C++.

Get started with WinUI

Browse app docs

Why WinUI

Native apps that feel at home on Windows

WinUI is the modern UI framework for Windows. Use it with C# or C++ to build apps that look and feel like part of Windows.

Modern, beautiful UI Use rich controls, styles, and materials like Mica and Acrylic, with usability built in.

Explore WinUI

Your language, your way Write your app in C# with .NET, or in C++. Make it run well on x86, x64, and Arm devices.

Start developing

Fast on modern hardware Build responsive apps that make the most of modern PCs. Publish with Native AOT for faster startup.

Tune performance

Windows features, built in Use the Windows App SDK to add windowing, notifications, and on-device AI to your app.

Explore the Windows App SDK

Built with WinUI

The UI behind Windows—and your next app

WinUI powers experiences across Windows and many inbox apps. See the platform in action, then explore open-source Microsoft apps and working code.

Windows and inbox apps WinUI powers key Windows experiences and apps that ship with Windows—the same platform you can use for your app.

Explore WinUI

PowerToys More than 30 free tools for power users. Its Settings app and Command Palette are built with WinUI 3.

Explore PowerToys

WinUI 3 Gallery See every WinUI control and style in action, with the code you need to use them in your app.

Get WinUI 3 Gallery

Get started

Start where you are

Pick the path that fits your project. Each one has step-by-step guidance.

Start a new app Learn by doing with guided tutorials and working code.

Build a notes app with WinUI

Build a WinUI app with an AI agent

Add local AI to a WinUI app

Modernize an existing app Add Windows App SDK features to the app you have today, or move it to WinUI step by step with help from AI.

Use the Windows App SDK in your app

Move from WPF to WinUI

Move from UWP to WinUI

Bring a cross-platform app Package and ship your Electron, Flutter, Tauri, or Rust app on Windows. When you want a native UI, move it to WinUI with AI.

Get started with winapp CLI

Package your app with MSIX

Move a cross-platform app to WinUI

Developer tools

Build faster with AI and the command line

Give your AI coding agent WinUI skills, use one CLI to package and publish, and add AI that runs on the device.

WinUI agent plugin Give GitHub Copilot or Claude Code WinUI skills for every step, from a new project to a packaged app.

Get the WinUI agent plugin

winapp CLI Set up, package, sign, and publish Windows apps from one CLI. Works with .NET, C++, Electron, Rust, Tauri, and Flutter.

Explore winapp CLI

AI that runs on the device Use Windows AI APIs and Windows ML to add AI features that run right on your users' PCs.

Build with local AI

Distribute your app

Reach more people with Microsoft Store

Publish your app where people already find apps on Windows.

Free to join, with free signing for MSIX Registration is free for individual developers. When you submit an MSIX package, the Store signs it at no cost. Publish from Partner Center, or from your terminal with winapp CLI.

250M+

monthly active users 1

Publish your app

1 Microsoft Store monthly active users, as shared on the Windows Blog in September 2025.

#ifdef Windows

Keep up to date

Follow the latest tools, platform updates, and practical guidance for modern Windows app development.

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November 9, 2026

Windows App Development CLI v0.8: WinUI DevTools Experimental Preview Chiara Mooney

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November 3, 2026

Announcing XAML IntelliSense Support in the WinApp VS Code Extension Chiara Mooney

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October 21, 2026

Microsoft.UI.Reactor: a C#-first way to build WinUI apps Alexandre Zollinger Chohfi

Read the post

Related resources

Choose your next step

Move from platform overview to a guided first app, working samples, or publishing guidance.

Learn and build Start with a guided app or follow the complete Windows app development path.

Windows app quick start

Create a WinUI notes app

Build with an AI coding assistant

Samples and tools Explore working controls, code samples, and design guidance before adding them to your app.

WinUI 3 Gallery

Windows App SDK samples

Windows app design guidance

Package and publish Prepare a reliable package and choose how customers install and update your app.

MSIX packaging

Publish a Windows app

Microsoft Store for developers

Manage apps in Partner Center

Follow Windows Developer

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