What is ReactiveUI?

ReactiveUI 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 and improve the testability of your application.

🔨 Get Started 🛍 Install Packages 🎞 Watch Videos 🎓 View Samples 🎤 Discuss ReactiveUI

Book

There has been an excellent book 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	Events Package
.NET Standard	ReactiveUI		None
	ReactiveUI.Fody		None
Unit Testing	ReactiveUI.Testing		None
Universal Windows	ReactiveUI		ReactiveUI.Events
WPF	ReactiveUI.WPF		ReactiveUI.Events.WPF
Windows Forms	ReactiveUI.WinForms		ReactiveUI.Events.WinForms
Xamarin.Forms	ReactiveUI.XamForms		ReactiveUI.Events.XamForms
Xamarin.Essentials	ReactiveUI		ReactiveUI.Events.XamEssentials
AndroidX (Xamarin)	ReactiveUI.AndroidX		ReactiveUI.Events
Xamarin.Android	ReactiveUI.AndroidSupport		ReactiveUI.Events
Xamarin.iOS	ReactiveUI		ReactiveUI.Events
Xamarin.Mac	ReactiveUI		ReactiveUI.Events
Tizen	ReactiveUI		ReactiveUI.Events
Blazor	ReactiveUI.Blazor		None
Platform Uno	ReactiveUI.Uno		None
Avalonia	Avalonia.ReactiveUI		None
Any	ReactiveUI.Validation		None

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.

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 or Stack Overflow have already answered it.

If you want to discuss something or just need help, here is our Slack room, 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 to discuss. We are first time PR contributors friendly.

Core Team

Glenn Watson Melbourne, Australia

Rodney Littles II Texas, USA

Artyom Gorchakov Moscow, Russia

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

.NET Foundation

ReactiveUI is part of the .NET Foundation. 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.