Top 20 NuGet WPF Packages

Facilitates Development of WPF Applications using Markup Extensions and MVVM Utility Classes.
Provides the Device, ReceiverBluetoothService and SenderBluetoothService classes for help to use 32feet.Net in WPF applications that implements the MVVM pattern.
A little helper library for the .NET HttpClient
Marvin.HttpCache is a complete implementation of the RFC2616 Http Caching standard for use with HttpClient, for all .NET Framework platforms (Windows Store, Windows Phone, WPF, WinForms, Console apps). Make sure to check the project site for the current status and to learn how to get started.
The SplitterItemsControl is a control that allows you to host a set of items, with a splitter between them to adjust the space reserved for each one.
Lightweight MVVM framework (WPF Extensions)
WPF UI Components.
Converter to create PDF or XPS documents from a FlowDocument
Unofficial OneDriveSDK NuGet
Unofficial CefGlue package including WPF controls. Xilium.CefGlue is a .NET/Mono binding for The Chromium Embedded Framework (CEF) by Marshall A. Greenblatt.
Just a bunch of controls, converters, and extension methods for WPF.
Treenumerable.VisualTree.WPF is a general purpose library for enumerating, traversing and querying WPF's visual tree.
Prism6 Integration for DContainer
C# wrapper for IVirtualDesktopManager on Windows 10.
A bridge between Youtube javascript Iframe api and C#. Contains a wpf usercontrol that shows a youtube video with support binding. This package only support 32 bit and must have build platform x86 and not anycpu.
Modern WPF Themes (chrome for external window)
Fody plugin that converts automatic C# property into WPF DependencyProperty during build. This version is signed
Useful WPF utilities
WPF / MVVM Utilities
The .NET C# port of libspiro - conversion between spiro control points and bezier's.