microsoft/microsoft-ui-xaml

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

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microsoft/microsoft-ui-xaml has 8.5k+ stars and 950+ forks on GitHub, is written in C++, and was last pushed on Oct 17, 2026. Data as of Oct 17, 18:16 UTC. Signed-in members get hourly updates — create a free account.

Summary Information

Updated 39 minutes ago

Type:FrameworkCategory(s):UI Components & Design Systems Cross-Platform & Desktop App Frameworks Web Development

Added to GitGenius on September 7th, 2026

Created on July 26th, 2018

Open Issues & Pull Requests: 2,460 (+0)

GitHub issues: Enabled

Number of forks: 961

Total Stargazers: 8,535 (+0)

Total Subscribers: 246 (+0)

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Maintainer activity

41 people did triage or write work on this repository in the last 12 months.

Counts unlabeled, assigned, unassigned, milestoned, demilestoned, locked, unlocked over the last 12 months. These are issue and pull request events that require triage or write permission. Commits and code review are not counted. labeled and renamed are excluded because GitHub issue forms record the issue author as the actor. Figures from October 11, 2026. This count is not comparable across projects: each project's automation decides which of these events a person emits. How this is counted.

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Issue Activity (beta)

Open issues: 1,673

New in 7 days: 14

Closed in 7 days: 17

Avg open age: 1,045 days

Stale 30+ days: 1,004

Stale 90+ days: 441

Recent activity

Opened in 7 days: 14

Closed in 7 days: 16

Comments in 7 days: 55

Events in 7 days: 205

Top labels

bug (1,458)
team-Core (732)
team-Controls (657)
feature proposal (642)
needs-triage (538)
team-Markup (379)
product-winui3 (285)
team-Rendering (174)

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Detailed Description

WinUI is a modern UI framework for building Windows applications with a rich set of controls and styles based on Fluent Design principles.

WinUI addresses the need for contemporary, performant Windows desktop applications by providing a unified layer of modern controls and visual styles. The framework ships as part of the Windows App SDK and enables developers to build applications using either C# with .NET or C++, targeting x86, x64, and ARM architectures. The current generation, WinUI 3, integrates Fluent Design to deliver intuitive and accessible user experiences while optimizing for modern hardware capabilities.

Developers should choose WinUI for building Windows desktop applications that require modern UI patterns and high performance. The framework suits projects ranging from new applications to migrations from UWP, as the Windows App SDK provides a clear migration path. WinUI powers key experiences within Windows itself, demonstrating its production readiness and the depth of its control set. Applications built with WinUI require users to be on Windows 10 build 17763 or newer, including Windows Insider Previews.

The project maintains active development with regular updates to its control library and styling capabilities. The team provides comprehensive documentation through Microsoft Learn alongside an interactive WinUI 3 Gallery sample application available through the Microsoft Store, enabling developers to explore framework capabilities directly. Release notes are published to communicate updates and changes to the framework.