ReactiveUI
A composable, cross-platform MVVM framework for .NET that uses functional reactive programming to abstract mutable state from UIs.
What is ReactiveUI?
ReactiveUI is a cross-platform model-view-viewmodel (MVVM) framework for .NET applications, inspired by functional reactive programming. It helps developers abstract mutable state away from user interfaces, express feature logic in a single readable place, and significantly improve application testability. The framework provides native support for platforms like WPF, MAUI, WinUI, Blazor, and more through a composable package architecture.
.NET developers building cross-platform desktop, mobile, or web applications who want a declarative, testable approach to UI development using the MVVM pattern and reactive programming principles.
Developers choose ReactiveUI for its robust integration of functional reactive programming with the MVVM pattern, enabling cleaner state management, reduced boilerplate, and excellent testability across all major .NET UI platforms.
Overview
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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