Lunacy App

Beautiful applications
for every platform.

Harness the power of cross-platform development with Avalonia. One codebase, infinite possibilities.

Pixel-Perfect on every platform

Write your code once and know it'll work the same across every platform you wish to support.

Incredible Performance

Designed with performance in mind, Avalonia enables you to build the fastest apps for every platform.

Free and open-source

Avalonia has a permissive MIT license, meaning you're free to use Avalonia for every project with zero cost.



Create modern Windows applications compatible with systems from Windows 7 all the way up to the latest Windows 11.

Our Fluent design inspired theme provides the look and feel of apps loved by Windows users, making it easy to ship a polished user experience.

Lunacy App


Develop pixel-perfect applications for macOS using .NET and Avalonia.

Ship your macOS apps to the Mac App Store and build for Intel and Apple Silicon devices.


Avalonia on Linux.
Desktop & Embedded

Extended your reach far beyond conventional desktops. Our robust Linux support encompasses the realm of embedded devices.

With the frame buffer support, you can deliver high-quality user experiences on an array of devices.

Use Avalonia alongside Meadow.Desktop from Wilderness Labs if you want to develop HMIs that easily integrate with electronics.

Mobile App
New with v11


Extend your reach to the mobile world with Avalonia. Catering to both iOS and Android platforms, we empower you to deliver your applications to the hands of billions of users worldwide.

Avalonia makes mobile application development simple and efficient, saving you valuable time and resources."

New with v11


Embrace the power of the web with Avalonia. With our comprehensive WebAssembly support, your application can be deployed directly to a web without altering a single line of code.

Experience the freedom and versatility of platform-agnostic deployment with Avalonia's WebAssembly support.

Go to Browser Playground
Coming Soon


As Apple embarks on a new journey with visionOS, we're committed to ensuring compatibility with this groundbreaking operating system.

With Avalonia, your investment today is a step towards the technological landscapes of tomorrow.

Read the announcement
Coming Soon


Exciting new possibilities are on the horizon as we prepare to extend our support to Samsung's Tizen OS.

Soon, you'll have the tools to deploy your applications on Tizen-powered smart TVs. This upcoming addition to our supported platforms underscores our ongoing commitment to broad, cross-platform development.

Need to modernise a WPF App?

Use Avalonia XPF to modernise in minutes rather than months.