Pixel-Perfect Multi-Platform Applications with C# and WinUI
Open-source UI Platform for building single-codebase applications for Windows, iOS, Android, WebAssembly, macOS, and Linux
Target All Operating Systems & Browsers
The first C# & XAML, free and open-source platform for creating true single-source, multi-platform applications. Reuse 99% of the business logic and UI layer across native mobile, web, and desktop.
Pixel Perfect Everywhere
Maintain pixel-perfect control over where pixels go while having a choice of developing platform-specific or custom look and feel of your application.
C# and XAML Productivity
Familiarity and richness of C# and XAML combined with productivity boosts of hot reload, hot restart, edit and continue and more.
Power of Your Preferred IDE
Use familiar editors like Visual Studio, Visual Studio Code or Rider
Support for Your Projects
Free and paid support is available by both community and our team. Chats, tickets or even screen sharing!
Code Snippets & Sample Apps
Seeing is believing. Learn by doing. See code samples our engineers put out for fun, learning and reuse. Explore the possibilities Uno Platform opens.
Uno Gallery
A collection of ready-to-use Fluent and Material code snippets to help speed up your multi-platform development
Uno Playground
Write XAML live in the browser. Edit premade snippets or try your own code!
You are in Good Company
The following companies use the Uno Platform to develop their applications
Uno Platform in Tech Media
Our favorite Uno Platform appearances in Tech Media,
Channel 9 and Tech Podcasts
Keep in touch with Uno Platform
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