Avalonia XPF

Unleash the full potential of your existing WPF apps with our cross-platform UI framework, enabling WPF apps to run on macOS and Linux without requiring expensive and risky rewrites.

Avalonia XPF Logo

How It Works

WPF Compatibility

We enable WPF apps to run on macOS and Linux with our Fork of WPF, which allows us to maintain API compatibility. Avalonia XPF replaces the low-level WPF code (MilCore) with Avalonia UI.

3rd Party Controls

Avalonia XPF supports a broad range of UI controls from the most popular control vendors. Where controls aren't compatible, we provide a range of options, including substitution.

Supported Platforms

Avalonia XPF currently supports Windows, macOS and Linux (desktop and embedded). WebAssembly, iOS and Android support is coming in 2024.


Licenses are available to purchase on a per-app, per-platform basis, with no limits on distribution. We also offer bespoke license agreements for more complex scenarios.

How it works

Developer Experience

Experience a smooth transition to Avalonia XPF, designed to provide developers with a familiar development experience with WPF. Our innovative platform ensures enterprises can harness their existing investments in WPF, making it effortless to adapt and work on projects across macOS and Linux.

Embrace the power of Avalonia XPF and enjoy a hassle-free, unified WPF development experience across platforms.

Migration Analyser

Make informed decisions about migrating your mission-critical applications to Avalonia XPF with confidence, backed by the insights the Avalonia XPF Migration Analyser provides.

It intelligently scans your WPF application to determine compatibility with Avalonia XPF, saving you time and effort by identifying potential issues.

Migration Analyser


Avalonia XPF is currently in preview, meaning that its pricing is subject to change. When Avalonia XPF becomes generally available, its pricing will increase.



Advanced Features

Developers Unlimited Unlimited
Distribution Unlimited Unlimited
Perpetual license
Presentation Framework
Email Support
Priority Support

Compatible With

Telerik UI for WPF
DevExpress WPF
Actipro WPF Controls
Infragistics WPF Controls
Syncfusion WPF Controls
In Development

Any questions?

Still have unanswered questions and need to get in touch?

Avalonia XPF is based on WPF shipped with .NET 6.0 SDK. For WPF apps that are using older versions of .NET, we recommend upgrading to .NET 6 or .NET 7.

Yes. Libraries that don't use any Win32 APIs should work without modification. For libraries that do use Win32 APIs, we are developing a solution to enable a subset of Win32 APIs to work across supported platforms.

Yes. Avalonia XPF comes with both documentation and support. Our engineers will take your apps and ensure they run perfectly before we handover to your team.

No. Avalonia XPF is not open-source, and its source code is not freely available.

Yes. Avalonia XPF Works with all WPF applications, regardless of the language used. We have tested applications developed with C#, VB.NET and F#.

Avalonia UI will stay free and open-source, continuing to see new features and many updates. Avalonia XPF is a premium product designed for businesses, with the revenue going towards funding the development of our OSS projects, including Avalonia UI.

Avalonia XPF is a commercial solution to reduce the costs and risks involved in modernising existing enterprise WPF applications. We recommend that OSS maintainers consider modernising their projects with Avalonia UI to enable wider adoption and community engagement.

Avalonia XPF is licensed per app, per platform, with a perpetual license and optional upgrades after one-year. There are no limitations to distribution.