Top 20 NuGet behaviors Packages

Catel.MVVM library.
Easily add interactivity to your Avalonia apps using XAML Behaviors. Behaviors encapsulate reusable functionalities for elements that can be easily added to your XAML without the need for more imperative code.
Easily add interactivity to your apps using XAML Behaviors for WPF. Behaviors encapsulate reusable functionalities for elements that can be easily added to your XAML without the need for more imperative code.
Easily add interactivity to your Avalonia apps using XAML Behaviors. Behaviors encapsulate reusable functionalities for elements that can be easily added to your XAML without the need for more imperative code.
Easily add interactivity to your Avalonia apps using XAML Behaviors. Behaviors encapsulate reusable functionalities for elements that can be easily added to your XAML without the need for more imperative code.
Easily add interactivity to your Avalonia apps using XAML Behaviors. Behaviors encapsulate reusable functionalities for elements that can be easily added to your XAML without the need for more imperative code.
Catel.MVVM.Xamarin.Forms library.
Behavior library for Xamarin.Forms. EventToCommandBehavior, SelectedItemBehavior, DisplayAlertBehavior. DisplayActionSheetBehavior and other.
Easily add drag and drop interactivity to your Avalonia apps using XAML Behaviors.
Library with various controls, utilities and base classes for MVVM driven WPF development.
Useful behaviors for field validation
Toolkit for Xamarin.Forms (Controls, Behaviors, and Converters)!
Easily add interactivity to your apps using XAML Behaviors for WPF. Behaviors encapsulate reusable functionalities for elements that can be easily added to your XAML without the need for more imperative code.
Porting of Blend behaviors core infrastructure to Xamarin Forms
This library contains a collection of UWP XAML components such as Visual State triggers, Behaviors and value converters that can be used in a variety of UWP applications built by the community.
This library contains a collection of custom UWP XAML controls that can be used in a variety of UWP applications built by the community.
MVVM Helpers (Metro) is a library of helpers for Windows 8 and .NET 4.5 to implement the MVVM design pattern
Behaviors for Xamarin.Forms .NET Standard 1.3/2.0