Build apps for every device using .NET

Harness the power of cross-platform .NET
One codebase. Infinite possibilities

You're in good company

One codebase, infinite possibilities.

Avalonia is an open source framework for building beautiful, cross-platform applications from a single .NET codebase.

A decade in the making, Avalonia is a mature and stable platform for building desktop, embedded, mobile, and web applications

Open Source

Avalonia is open source, free to use and always will be. Clone the source code today

Open Source

Avalonia is open source, free to use and always will be. Clone the source code today

Open Source

Avalonia is open source, free to use and always will be. Clone the source code today

Enhanced Support

Support from the creators of Avalonia guarantees you'll get the help you need, when you need it

Enhanced Support

Support from the creators of Avalonia guarantees you'll get the help you need, when you need it

Enhanced Support

Support from the creators of Avalonia guarantees you'll get the help you need, when you need it

Growing Community

Join the community and discover why thousands of businesses build with Avalonia

Growing Community

Join the community and discover why thousands of businesses build with Avalonia

Growing Community

Join the community and discover why thousands of businesses build with Avalonia

Performance Focused

Built for efficiency, Avalonia runs on low-powered devices while retaining its blazing speed

Performance Focused

Built for efficiency, Avalonia runs on low-powered devices while retaining its blazing speed

Performance Focused

Built for efficiency, Avalonia runs on low-powered devices while retaining its blazing speed

Cross-Platform

Support Windows, macOS, Linux, iOS, Android and WebAssembly from a single codebase

Cross-Platform

Support Windows, macOS, Linux, iOS, Android and WebAssembly from a single codebase

Cross-Platform

Support Windows, macOS, Linux, iOS, Android and WebAssembly from a single codebase

Forward Looking

Built to last. Avalonia offers API stability and a clear roadmap for the next decade

Forward Looking

Built to last. Avalonia offers API stability and a clear roadmap for the next decade

Forward Looking

Built to last. Avalonia offers API stability and a clear roadmap for the next decade

Build rich desktop experiences

The spiritual successor to WPF, Avalonia provides a familiar developer experience, allowing you to create rich, highly performant desktop applications for Windows, macOS and Linux, all from a single codebase

Develop for embedded

With both FBDev and DRM support, you can deliver high-quality user experiences on an array of embedded devices running barebone Linux. Perfect for deploying your apps to low-powered devices

Avalonia solitaire sample app in a web browser.

Deploy to the browser

Create beautiful mobile apps for iOS & Android

Deploy to the browser

Unleash the power of the web. Deploy your Avalonia application directly to any browser, reaching millions with zero code changes

Create beautiful mobile apps for iOS & Android

Create pixel-perfect mobile apps, ensuring flawless visuals and seamless performance across iOS and Android

Bring your favourite tools

Visual Studio. The Avalonia Extension for Visual Studio 2022 provides XAML IntelliSense and a built-in XAML previewer, making developing cross-platform apps in Visual Studio a breeze

JetBrains Rider. As users of Avalonia, JetBrains products natively understand Avalonia XAML, offering code completion and advanced refactoring support. Combined with the Avalonia Previewer extension, Rider is a powerhouse for cross-platform developers

Choose C#, F# or XAML for your User Interface

Craft stunning UIs for your applications using our modern flavour of XAML; alternatively, build your UIs entirely with C# or F#

Cross-Platform WPF for macOS & Linux.

WPF Compatible.Take your WPF applications to new platforms effortlessly with Avalonia XPF. With minimal to no changes, you can achieve cross-platform functionality in minutes, not months, expanding your reach with ease

Components. Bring your favourite WPF pro controls to macOS and Linux with support for renowned vendors, including Telerik, Actipro, DevExpress, Infragistics, Syncfusion, and SciChart

Learn More

Bill Henning

Actipro Software

Avalonia has a very strong community, offers pixel-perfect rendering on a multitude of platforms, is easy to customize, and frankly is a joy to work with.

Bill Henning

Actipro Software

Avalonia has a very strong community, offers pixel-perfect rendering on a multitude of platforms, is easy to customize, and frankly is a joy to work with.

Bill Henning

Actipro Software

Avalonia has a very strong community, offers pixel-perfect rendering on a multitude of platforms, is easy to customize, and frankly is a joy to work with.

Daniel Pañalba

Unity Games

Avalonia's support team is fantastic. They respond quickly and provide clear, effective solutions, making development much easier.

Daniel Pañalba

Unity Games

Avalonia's support team is fantastic. They respond quickly and provide clear, effective solutions, making development much easier.

Daniel Pañalba

Unity Games

Avalonia's support team is fantastic. They respond quickly and provide clear, effective solutions, making development much easier.

Joseph Albahari

LINQPad

Very happy with the decision to use Avalonia XPF: it’s turned out to be a powerful and productive x-platform API, and the support has been nothing short of awesome.

Joseph Albahari

LINQPad

Very happy with the decision to use Avalonia XPF: it’s turned out to be a powerful and productive x-platform API, and the support has been nothing short of awesome.

Joseph Albahari

LINQPad

Very happy with the decision to use Avalonia XPF: it’s turned out to be a powerful and productive x-platform API, and the support has been nothing short of awesome.

Fabian Huegle

Stryker

Avalonia rebuilds lives by simplifying our journey from Windows to Linux, macOS and mobile based medical device software.

Fabian Huegle

Stryker

Avalonia rebuilds lives by simplifying our journey from Windows to Linux, macOS and mobile based medical device software.

Fabian Huegle

Stryker

Avalonia rebuilds lives by simplifying our journey from Windows to Linux, macOS and mobile based medical device software.

A growing community.

Avalonia's popularity is soaring, and with it, our community is flourishing. Join us and become part of a dynamic, supportive network of developers.

Contributors

Stargazers

Installs

Loved by developers.
Trusted by enterprise.

Get Started

Build apps for every device using .NET

Avalonia is an open source framework for building beautiful, cross-platform applications from a single .NET codebase.

Open Source

Open Source

Open Source

Enhanced Support

Enhanced Support

Enhanced Support

Growing Community

Growing Community

Growing Community

Performance Focused

Performance Focused

Performance Focused

Cross-Platform

Cross-Platform

Cross-Platform

Forward Looking

Forward Looking

Forward Looking

Build rich desktop experiences

Build rich desktop experiences

Build rich desktop experiences

Develop for embedded

Develop for embedded

Develop for embedded

Deploy to the browser

Create beautiful mobile apps for iOS & Android

Deploy to the browser

Create beautiful mobile apps for iOS & Android

Create beautiful mobile apps for iOS & Android

Create beautiful mobile apps for iOS & Android

Bring your favourite tools

Bring your favourite tools

Bring your favourite tools

Choose C#, F# or XAML for your User Interface

Choose C#, F# or XAML for your User Interface

Choose C#, F# or XAML for your User Interface

Cross-Platform WPF for macOS & Linux.

Cross-Platform WPF for macOS & Linux.

Cross-Platform WPF for macOS & Linux.

A growing community.

Loved by developers. Trusted by enterprise.

Loved by developers.
Trusted by enterprise.