Here’s a bold statement: Microsoft just breathed new life into a tool that could revolutionize how developers prototype XAML-based UIs. But here’s where it gets controversial—while some celebrate the open-sourcing of XAML Studio, others wonder if it’s too little, too late for a tool that’s been in the shadows for years. So, what’s the big deal? Let’s dive in.
Microsoft has officially open-sourced XAML Studio, a lightweight rapid prototyping tool for XAML-based UI development, under the .NET Foundation. Originally launched as part of the Microsoft Garage initiative and available through the Microsoft Store, the tool is now open for community contributions and collaboration via its GitHub repository (https://github.com/dotnet/XAMLStudio). This shift marks a significant change in how the tool is maintained and developed, positioning it for sustained community involvement as a seed project within the .NET Foundation.
And this is the part most people miss—XAML Studio’s roots trace back to a 2017 hackathon, where it began as ‘XamlPad+’, a project aimed at reviving classic WPF-era tools like XamlPad, XamlPadX, and Kaxaml. What started as a side project evolved over years into a standalone app focused on WinUI and UWP prototyping. Until now, development was largely internal, with some components shared via the Windows Community Toolkit (https://github.com/CommunityToolkit/Windows).
The open-source release introduces major updates for version 2.0, housed in the dev branch (https://github.com/dotnet/XAMLStudio/tree/dev). These updates include a Fluent-inspired UI redesign, improved integration with WinUI 3, and features like live data context, property inspectors, and layout alignment tools. Notably, the new version reintroduces folder support, a feature from the original prototype that was absent in XAML Studio 1.0.
While the move to open source is exciting, it’s not without its caveats. Version 2.0 is still in development and isn’t considered stable. Developers exploring the repository should be aware that some features are experimental, and documentation is a work in progress. Compatibility with legacy UWP workflows remains partial, and Visual Studio integration is limited to external previewing rather than a full designer replacement.
Despite these limitations, the release is a game-changer for WinUI and XAML developers seeking a fast feedback loop without the overhead of full project scaffolding. It also opens the door for community-driven improvements through contributions, issue tracking, and roadmap visibility. But here’s the question—will the community embrace XAML Studio, or will it remain a niche tool in a sea of alternatives?
Interested developers can explore the GitHub repository (https://github.com/dotnet/XAMLStudio), review the updated roadmap (https://github.com/dotnet/XAMLStudio/issues/34), and engage via discussions or pull requests. For more context, Microsoft’s announcement blog (https://devblogs.microsoft.com/ifdef-windows/xaml-studio-is-now-open-sourced/) and the GitHub discussions thread (https://github.com/dotnet/XAMLStudio/discussions/26) provide insights into the project’s history and vision.
What do you think? Is XAML Studio’s open-sourcing a step in the right direction, or is it too late to make a splash? Share your thoughts in the comments—let’s spark a conversation!
