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https://github.com/reactiveui/reactiveui

An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.
https://github.com/reactiveui/reactiveui

android csharp dotnet first-timers fody framework functional-reactive-programming hacktoberfest ios mvvm reactive-extensions reactive-programming reactiveui reactivex tizen uwp winforms wpf xamarin xamarin-forms

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An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.

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# What is ReactiveUI?



[ReactiveUI](https://reactiveui.net/) is a composable, cross-platform model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming, which is a paradigm that allows you to [abstract mutable state away from your user interfaces and express the idea around a feature in one readable place](https://www.youtube.com/watch?v=3HwEytvngXk) and improve the testability of your application.



[🔨 Get Started](https://reactiveui.net/docs/getting-started/) [🛍 Install Packages](https://reactiveui.net/docs/getting-started/installation/) [🎞 Watch Videos](https://reactiveui.net/docs/resources/videos) [🎓 View Samples](https://reactiveui.net/docs/resources/samples/) [🎤 Discuss ReactiveUI](https://reactiveui.net/slack)



## Book

There has been an excellent [book](https://kent-boogaart.com/you-i-and-reactiveui/) written by our Alumni maintainer Kent Boogart.



## NuGet Packages



Install the following packages to start building your own ReactiveUI app. Note: some of the platform-specific packages are required. This means your app won't perform as expected until you install the packages properly. See the Installation docs page for more info.



| Platform          | ReactiveUI Package                  | NuGet                  |

| ----------------- | ----------------------------------- | ---------------------- |

| .NET Standard     | [ReactiveUI][CoreDoc]               | [![CoreBadge]][Core]   |

|                   | [ReactiveUI.Fody][FodyDoc]          | [![FodyBadge]][Fody]   |

| Unit Testing      | [ReactiveUI.Testing][TestDoc]       | [![TestBadge]][Test]   |

| WPF               | [ReactiveUI.WPF][WpfDoc]            | [![WpfBadge]][Wpf]     |

| UWP               | [ReactiveUI.Uwp][UwpDoc]            | [![UwpBadge]][Uwp]     |

| WinUI             | [ReactiveUI.WinUI][WinUiDoc]        | [![WinUiBadge]][WinUi] |

| MAUI              | [ReactiveUI.Maui][MauiDoc]          | [![MauiBadge]][Maui] |

| Windows Forms     | [ReactiveUI.WinForms][WinDoc]       | [![WinBadge]][Win]     |

| Xamarin.Forms     | [ReactiveUI.XamForms][XamDoc]       | [![XamBadge]][Xam]     |

| Xamarin.Essentials| [ReactiveUI][XamDoc]                | [![CoreBadge]][Core]   |

| AndroidX (Xamarin)| [ReactiveUI.AndroidX][DroDoc]       | [![DroXBadge]][DroX]   |

| Xamarin.Android   | [ReactiveUI.AndroidSupport][DroDoc] | [![DroBadge]][Dro]     |

| Xamarin.iOS       | [ReactiveUI][IosDoc]                | [![CoreBadge]][Core]   |

| Xamarin.Mac       | [ReactiveUI][MacDoc]                | [![CoreBadge]][Core]   |

| Tizen             | [ReactiveUI][CoreDoc]               | [![CoreBadge]][Core]   |

| Blazor            | [ReactiveUI.Blazor][BlazDoc]        | [![BlazBadge]][Blaz]   |

| Platform Uno      | [ReactiveUI.Uno][UnoDoc]            | [![UnoBadge]][Uno]     |

| Platform Uno      | [ReactiveUI.Uno.WinUI][UnoWinUiDoc] | [![UnoWinUiBadge]][UnoWinUi] |

| Avalonia          | [Avalonia.ReactiveUI][AvaDoc]       | [![AvaBadge]][Ava]     |

| Any               | [ReactiveUI.Validation][ValDocs]    | [![ValBadge]][ValCore] |



[Core]: https://www.nuget.org/packages/ReactiveUI/

[CoreBadge]: https://img.shields.io/nuget/v/ReactiveUI.svg

[CoreDoc]: https://reactiveui.net/docs/getting-started/installation/



[Fody]: https://www.nuget.org/packages/ReactiveUI.Fody/

[FodyDoc]: https://reactiveui.net/docs/handbook/view-models/boilerplate-code

[FodyBadge]: https://img.shields.io/nuget/v/ReactiveUI.Fody.svg



[Test]: https://www.nuget.org/packages/ReactiveUI.Testing/

[TestBadge]: https://img.shields.io/nuget/v/ReactiveUI.Testing.svg

[TestDoc]: https://reactiveui.net/docs/handbook/testing/



[Wpf]: https://www.nuget.org/packages/ReactiveUI.WPF/

[WpfBadge]: https://img.shields.io/nuget/v/ReactiveUI.WPF.svg

[WpfDoc]: https://reactiveui.net/docs/getting-started/installation/windows-presentation-foundation



[Uwp]: https://www.nuget.org/packages/ReactiveUI.Uwp/

[UwpBadge]: https://img.shields.io/nuget/v/ReactiveUI.Uwp.svg

[UwpDoc]: https://reactiveui.net/docs/getting-started/installation/universal-windows-platform



[WinUi]: https://www.nuget.org/packages/ReactiveUI.WinUI/

[WinUiBadge]: https://img.shields.io/nuget/v/ReactiveUI.WinUI.svg

[WinUiDoc]: https://reactiveui.net/docs/getting-started/installation/universal-windows-platform



[Maui]: https://www.nuget.org/packages/ReactiveUI.Maui/

[MauiBadge]: https://img.shields.io/nuget/v/ReactiveUI.Maui.svg

[MauiDoc]: https://blog.jetbrains.com/dotnet/2020/09/18/xamarin-maui-and-the-reactive-mvvm-between-them-webinar-recording/



[Win]: https://www.nuget.org/packages/ReactiveUI.WinForms/

[WinEvents]: https://www.nuget.org/packages/ReactiveUI.Events.WinForms/

[WinBadge]: https://img.shields.io/nuget/v/ReactiveUI.WinForms.svg

[WinDoc]: https://reactiveui.net/docs/getting-started/installation/windows-forms



[Xam]: https://www.nuget.org/packages/ReactiveUI.XamForms/

[XamEvents]: https://www.nuget.org/packages/ReactiveUI.Events.XamForms/

[XamBadge]: https://img.shields.io/nuget/v/ReactiveUI.XamForms.svg

[XamDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-forms

[Dro]: https://www.nuget.org/packages/ReactiveUI.AndroidSupport/

[DroBadge]: https://img.shields.io/nuget/v/ReactiveUI.AndroidSupport.svg

[DroDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-android



[DroX]: https://www.nuget.org/packages/ReactiveUI.AndroidX/

[DroXBadge]: https://img.shields.io/nuget/v/ReactiveUI.AndroidX.svg



[MacDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-mac

[IosDoc]: https://reactiveui.net/docs/getting-started/installation/xamarin-ios



[Uno]: https://www.nuget.org/packages/ReactiveUI.Uno/

[UnoBadge]: https://img.shields.io/nuget/v/ReactiveUI.Uno.svg

[UnoDoc]: https://reactiveui.net/docs/getting-started/installation/uno-platform

[UnoWinUi]: https://www.nuget.org/packages/ReactiveUI.Uno.WinUI/

[UnoWinUiBadge]: https://img.shields.io/nuget/v/ReactiveUI.Uno.WinUI.svg

[UnoWinUiDoc]: https://reactiveui.net/docs/getting-started/installation/uno-platform



[Blaz]: https://www.nuget.org/packages/ReactiveUI.Blazor/

[BlazBadge]: https://img.shields.io/nuget/v/ReactiveUI.Blazor.svg

[BlazDoc]: https://www.reactiveui.net/blog/2020/07/article-blazor-compelling-example



[Ava]: https://www.nuget.org/packages/Avalonia.ReactiveUI/

[AvaBadge]: https://img.shields.io/nuget/v/Avalonia.ReactiveUI.svg

[AvaDoc]: https://reactiveui.net/docs/getting-started/installation/avalonia

[EventsDocs]: https://reactiveui.net/docs/handbook/events/



[ValCore]: https://www.nuget.org/packages/ReactiveUI.Validation/

[ValBadge]: https://img.shields.io/nuget/v/ReactiveUI.Validation.svg

[ValDocs]: https://reactiveui.net/docs/handbook/user-input-validation/



## Sponsorship



The core team members, ReactiveUI contributors and contributors in the ecosystem do this open-source work in their free time. If you use ReactiveUI, a serious task, and you'd like us to invest more time on it, please donate. This project increases your income/productivity too. It makes development and applications faster and it reduces the required bandwidth.



[Become a sponsor](https://github.com/sponsors/reactivemarbles).



This is how we use the donations:



* Allow the core team to work on ReactiveUI

* Thank contributors if they invested a large amount of time in contributing

* Support projects in the ecosystem



## Support



If you have a question, please see if any discussions in our [GitHub issues](https://github.com/reactiveui/ReactiveUI/issues) or [Stack Overflow](https://stackoverflow.com/questions/tagged/reactiveui) have already answered it.



If you want to discuss something or just need help, here is our [Slack room](https://reactiveui.net/slack), where there are always individuals looking to help out!



Please do not open GitHub issues for support requests.



## Contribute



ReactiveUI is developed under an OSI-approved open source license, making it freely usable and distributable, even for commercial use. 



If you want to submit pull requests please first open a [GitHub issue](https://github.com/reactiveui/ReactiveUI/issues/new/choose) to discuss. We are first time PR contributors friendly.



See [Contribution Guidelines](https://www.reactiveui.net/contribute/) for further information how to contribute changes.



## Core Team



  

    

      

        

        


        Glenn Watson

        
Melbourne, Australia


      

      

        

        


        Chris Pulman

        
United Kingdom


      

    

    

      

        

        


        Rodney Littles II

        
Texas, USA


      

      

        

        


        Colt Bauman

        
South Korea


      

    

  



## Alumni Core Team



The following have been core team members in the past.



  

    

      

        

        


        Geoffrey Huntley

        
Sydney, Australia


      

      

        

        


        Kent Boogaart

        
Brisbane, Australia


      

      

        

        


        Olly Levett

        
London, United Kingdom


      

    

    

      

        

        


        Anaïs Betts

        
San Francisco, USA


      

      

        

        


        Brendan Forster

        
Melbourne, Australia


      

      

        

        


        Claire Novotny

        
New York, USA


      

    

    

      

        

        


        Artyom Gorchakov

        
Moscow, Russia


      

     

  



## .NET Foundation



ReactiveUI is part of the [.NET Foundation](https://www.dotnetfoundation.org/). Other projects that are associated with the foundation include the Microsoft .NET Compiler Platform ("Roslyn") as well as the Microsoft ASP.NET family of projects, Microsoft .NET Core & Xamarin Forms.