Uno Platform

The Uno Platform is an Open-Source .NET platform for building single-codebase, cross-platform applications for mobile, web (using WebAssembly), desktop, and embedded apps quickly.

Important notes:

• The core framework is free and open-source under the Apache 2 license, since its release in 2018; optional enterprise support and advanced tooling (such as Hot Design) are offered under paid plans
• Skia (using a full-screen canvas) and Native (using native elements) renderers are available
• Uno Platform uses the WinUI (UI APIs) and WinRT (non-UI APIs) API definitions, but does not use WinAppSDK/WinUI. WinAppSDK is only used when running the netX.0-windows target, for the other targets, only Uno Platform code is used
• Uno Platform uses official .NET mobile bindings directly, but does not use MAUI
• Uno Platform offers a comprehensive C# and XAML Hot Reload support, under the free plan
• Uno Platform apps can run on iOS/iPadOS, Android, macOS, Windows, Linux, and Browsers supporting WebAssembly

Table of Contents

• Get Started
  • Setup
    • Visual Studio
    • VS Code
    • Rider
    • Claude Code
    • Codex
    • GitHub Copilot CLI
    • Cursor
    • Google Antigravity
  • Sign in with Uno Platform
  • Create an App
    • Visual Studio
    • VS Code
    • Rider
    • Claude Code
    • Codex
    • GitHub Copilot CLI
    • Cursor
    • Google Antigravity
  • Build your app
    • AI Agents
    • Hot Reload
    • App Structure
  • Troubleshoot
    • Overview
    • Hot Reload
    • Uno Platform Status
    • Development Environments
      • All Development Environments
      • Visual Studio
      • VS Code
      • Rider
      • Android & iOS Emulators
      • AI Agents
    • Platforms
      • WebAssembly
      • Skia (Gtk/Wpf/Framebuffer)
      • iOS
      • Android
    • Build Errors
      • Troubleshooting build errors
      • Build error codes
• Samples & Tutorials
  • Overview
  • Counter
    • Counter App
    • XAML + MVUX
    • XAML + MVVM
    • C# Markup + MVUX
    • C# Markup + MVVM
    • [Hot Design](https://raw.githubusercontent.com/unoplatform/uno/refs/heads/master/doc/articles/studio/Hot Design/hot-design-getstarted-counter-tutorial.md)
  • Simple Calc
  • Tube Player
  • Chefs
  • Tutorials
    • Overview
    • How to deploy a WebAssembly app on Azure Static Web Apps
    • How to use Windows Community Toolkit
      • Windows Community Toolkit - Version 8.x
      • Windows Community Toolkit - Version 7.x
    • How to manually add a splash screen
    • How to use native Frame navigation
    • How to consume a web API
    • How to localize text resources
    • How to change app language at runtime
    • How to integrate SignalR
    • How to use MSAL for Azure Authentication
    • How to authenticate with OpenID Connect
    • How to implement a sign-in with Apple Button
    • Embed a JavaScript Component
      • Part 1
      • Part 2
      • Part 3
    • Deploy to Raspberry Pi
    • Community Tutorials
  • Samples
  • Additional Resources
• Overview
  • Introduction
  • Architecture
    • Supported Platforms
    • .NET Version Support
    • Philosophy
    • How Uno Works
    • UI Renderers
      • Skia Renderer
      • Native Renderer
    • Best Practices
  • Authoring
    • Using the Uno.SDK
    • UI Markup
    • Platform-specific C# code
    • Platform-specific XAML markup
    • Creating Custom Controls
    • Control Libraries
    • Adding New Platforms
    • New Projects in Existing Solutions
    • Using the Skia Desktop
    • Linux Framebuffer
    • Using Skia Desktop (macOS)
    • Getting Started With Tests
    • Logging
    • AppManifest (WebAssembly)
    • Using the server project
    • Hosting a WebAssembly app
  • Debugging
    • How to create a repro sample
    • 'Debugging C# on WASM'
    • VS Code Advanced Mobile Debugging
    • Generic Unhandled Exceptions handler
    • Debugging Troubleshooting
  • Embedding
    • Uno Platform in WPF
    • Native Views
    • Native Views with Skia
  • Upgrading
    • Upgrading NuGet Packages
    • Upgrading from previous releases
    • Upgrading to Single Project
    • Upgrading to Uno 6.0
    • Upgrading to Uno 5.0
    • Upgrading from .NET 9 to .NET 10
    • Upgrading from .NET 8 to .NET 9
    • Upgrading from .NET 7 to .NET 8
    • Upgrading from Xamarin to .NET 6
    • Upgrading to WinUI 3.0
  • Migrating
    • Xamarin Forms
    • WPF
      • Migrating WPF Apps to Web
      • WPF to WinUI XAML Equivalents
    • UWP-only code
      • Overview
      • Checklist
      • Applications
      • Class libraries
      • General guidance
    • Silverlight
  • Publishing
    • Overview
    • Publishing for Desktop
      • Publishing Your App for Desktop
      • Publishing Your App for macOS
      • Publishing Your App for macOS - Advanced Topics
      • Publishing Your App for Linux
    • Publishing for WebAssembly
    • Publishing for Windows App SDK
      • Build Packaged Unsigned Apps
      • Build Packaged Signed Apps
      • Build Unpackaged Apps
    • Publishing for iOS
    • Publishing for Android
  • Performance
    • Improving Build Times
    • Performance tips
    • Memory Profiling
    • How to profile applications
    • IL Linker for WebAssembly
    • Skia Native Libraries Trimming
    • Working with String Resource Trimming
    • Working with XAML Trimming
    • Error Monitoring & Crash Reporting with Raygun
  • Contributing
    • Overview
    • Code of Conduct
    • Ways to contribute
    • How Uno works
      • Overview
      • Android
      • Layouting in Android
      • iOS
      • Layouting in iOS
      • WASM
      • macOS
      • DependencyProperty backing generator
      • x:Bind in Uno Platform
      • ListViewBase
      • ThemeResource
      • InteractionTracker internals
    • Building Uno.UI
    • Debugging Uno.UI
    • Using Codespaces
    • Using Ona
    • Inspecting the visual tree
    • Guidelines for code style
    • Using the SamplesApp
    • Guidelines for creating tests
      • Overview
      • Mocked unit tests (Uno.UI.Tests)
      • Platform-runtime unit tests (Uno.UI.RuntimeTests)
      • UI tests with Uno.UITest
    • Debugging Solution Templates
    • Conventional Commits format
    • Guidelines for pull-requests
    • Guidelines for breaking changes
    • Guidelines for updating dependencies
    • Guidelines for issue triage
    • Guidelines for implementing a new WinUI/WinRT feature
    • Adding documentation
    • DocFX
    • Uno.UI release procedure
    • Build Artifacts
    • Advanced topics
      • Adding functionality with API extensions
      • The WeakEventHelper class
      • Debugging Uno.UI Java code with Android studio
      • Troubleshooting Memory Issues
      • Troubleshooting Source Generation
      • The XAML Trimming phase
      • Hot Reload internals
  • Why use Uno Platform?
  • FAQ
• Studio
  • Overview
  • Uno MCPs
  • [Hot Reload](https://raw.githubusercontent.com/unoplatform/uno/refs/heads/master/doc/articles/studio/Hot Reload/hot-reload-overview.md)
  • Feedback
• Reference
  • Overview
    • Developing with Uno Platform
    • Features List
    • Feature Flags
    • WinUI Compatibility
      • Differences From WinUI
      • About NotImplemented members
      • Uno and WinUI 3
      • WinAppSDK Specifics
      • WinUI links
        • Overview
        • Tutorials
        • Development
        • Design
  • UI
    • Controls
      • Implemented Views
      • Uno Specifics
        • AdaptiveTrigger
        • Activities in Android
        • ComboBox
        • CommandBar
        • DatePicker
        • ElevatedView
        • Fluent icon font
        • Flyout
        • Frame
        • GLCanvasElement
        • Image
        • ListView and GridView
        • Lottie animations
        • MapControl
        • MediaPlayerElement
        • MenuFlyout
        • NavigationView
        • Native control styles
        • Other features
        • Pivot
        • Popup
        • ProgressRing
        • RefreshContainer (Pull to Refresh)
        • ScrollViewer
        • SKCanvasElement
        • TextBox
        • TimePicker
        • ToggleSwitch
        • URI Protocol activation
        • Using pointer cursors
        • Using SVG images
        • VisibleBoundsPadding
        • WebView (WebView2)
    • Features
      • Accessibility
      • Animations
      • Assets and image display
      • Build telemetry
      • Composition API
      • Customizing the UIApplicationDelegate on iOS
      • Dialogs
      • Fluent styles
      • Focus management
      • Fonts
      • Markup Extensions
      • Native frame navigation
      • Orientation
      • Routed Events
      • Shapes & Brushes
      • String resources and localization
      • Succinct syntax
      • Themes
      • User inputs - Keyboard, Pointers, Gestures, Manipulations, Drag and drop
      • Using Fluent styles in legacy apps
      • Windowing
      • Preventing Window Closing
      • x:Bind
    • 3rd-party libraries
  • Non-UI
    • Overview
    • Accelerometer
    • Android TV
    • App Actions
    • App Suspension
    • Application Data and Settings
    • Badge Notifications
    • Barometer
    • Battery Information
    • Bluetooth
    • Capture (Camera)
    • Clipboard
    • Compass
    • Contacts
    • Credential Storage
    • Device Enumeration
    • Device Information
    • E-mail
    • File and Folder Pickers
    • File Management
    • Flashlight
    • Gamepad
    • Geolocation (GPS)
    • Gyrometer
    • Haptics
    • Hardware back button
    • Keeping Screen On
    • Light Sensor
    • Magnetometer
    • MIDI
    • Network Information
    • Orientation Sensor
    • Package Information
    • Phone Calls
    • Proximity Sensor
    • Settings
    • Sharing
    • SMS
    • Speech Recognition
    • Step Counter
    • Store Context
    • Title Bar Customization
    • URI Launcher
    • Vibration
    • Wallpaper and Lock Screen
    • Web Authentication Broker
    • Working with cookies
• Tooling
  • Uno Platform Status
  • Dev Server
  • VS Code Extension
    • Visual Studio Code Extension
    • C# Dev Kit Support
    • Omnisharp Support
  • Rider
    • License Agreement
  • Templates
    • Visual Studio Wizard
    • dotnet new Templates
    • Get started wizard