Microsoft Open Sources XAML Studio: Reviving Prototyping for WinUI & UWP Developers (2026)

Microsoft's Bold Move: Unlocking XAML Studio's Potential

Microsoft has taken a bold step by open-sourcing XAML Studio, a powerful prototyping tool for XAML-based UI development, under the .NET Foundation. This move is a game-changer, offering a fresh opportunity for developers to explore and contribute to a tool with a rich history.

But here's where it gets intriguing: XAML Studio has its roots in a 2017 hackathon, where it was conceived as a revival of classic WPF-era tools. Over time, it evolved into a dedicated WinUI and UWP prototyping app, but its development remained largely internal until now.

The current open-source release is a significant milestone, with major updates targeting version 2.0. These enhancements, available in the dev branch on GitHub, showcase a complete UI redesign, better WinUI 3 integration, and exciting features like live data context and layout alignment tools. It's a testament to the tool's evolution and the community's potential impact.

And this is the part most people miss: the open-sourcing of XAML Studio marks a new era for the tool's maintenance and development. As a seed project under the .NET Foundation, it's now primed for sustained community involvement and improvement. The project's history, dating back to 2017, highlights its journey towards maturity and public development readiness.

While the codebase is accessible, version 2.0 is still in its infancy, with some features experimental and documentation evolving. Compatibility with legacy UWP workflows is a work in progress, and integration with Visual Studio is limited. However, this release is a boon for WinUI and XAML developers seeking a streamlined prototyping experience.

The benefits are clear: a faster feedback loop without the complexities of full project setup. And with open-sourcing, the door is wide open for contributions, issue tracking, and a transparent roadmap. It's an exciting time for XAML Studio and its community.

So, developers, are you ready to dive into XAML Studio's world? Head over to the GitHub repository, explore the updated roadmap, and join the discussions or contribute via pull requests. Microsoft's announcement blog and the GitHub discussions thread provide further insights into this project's fascinating journey and vision. Let's shape the future of XAML Studio together!

Author: Edin Kapić

Microsoft Open Sources XAML Studio: Reviving Prototyping for WinUI & UWP Developers (2026)
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