Top 20 NuGet XAML Packages

An easy to use drag'n'drop framework for WPF applications.
This library provides XAML user controls. It is part of the Windows Community Toolkit.
Workspace management library.
Orchestra core library.
LicenseManager - WPF client library.
Style XamarinForms-apps with Css
Add property notification to all classes that implement INotifyPropertyChanged.
DocumentUltimate is an ASP.NET Document Viewer and Converter which supports both ASP.NET MVC, ASP.NET Core and ASP.NET WebForms web applications/web sites. DocumentUltimate can also be used with .NET desktop applications for conversion between several document formats. Features: - ...
Tools for WPF Applications Development
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NuGet explorer library.
Portable.Xaml is a port of mono's System.Xaml to .NET Standard. This allows you to read/write xaml for desktop, mobile, and .NET Core projects.
DevExpress MVVM Framework is a set of components helping to work in the Model-View-ViewModel pattern in WPF. The source code with testing libraries, samples, and documentation is available on GitHub. Click Project Information to go to GitHub.
FilterBuilder xaml library.
PDFControls.NET for WPF is a 100% managed .NET component that enables you to add PDF reader/editor functionality to your .NET WPF applications. The component is a .NET class library consisting of user interface controls and UI-less classes to access and modify the PDF document.
A collection of IValueConverter for UWP apps.
A set of controls, extensions and helper classes for Windows Runtime XAML applications.
A set of classes and resources to get up to speed with a new WPF MVVM based project targeting .NET Framework 4.0.
The Coding4Fun Toolkit has multiple controls and useful items for XAML based applications.
UWP XAML Stuff