Top 20 NuGet toolkit Packages

The goal of MahApps.Metro is to allow devs to quickly and easily cobble together a 'Modern' UI for their WPF apps (>= .Net 4.5), with minimal effort.
Xwt is a cross-platform UI toolkit for creating desktop applications with .NET and Mono that run on multiple platforms from the same codebase. Xwt works by exposing one unified API across all environments that is mapped to a set of native controls on each platform. The framework consists of the fr...
An easy to use drag'n'drop framework for WPF applications.
Microsoft Cognitive Toolkit Libraries, GPU Build
Fluent.Ribbon is a library that implements an Office-like user interface for the Windows Presentation Foundation (WPF). It provides controls such as RibbonTabControl, Backstage, Gallery, QuickAccessToolbar, ScreenTip and so on.
Extended WPF Toolkit is the number one collection of WPF controls, components and utilities for creating next generation Windows applications. Provides 49 controls, all offered under the Microsoft Public License for maximum freedom. v3.4.0 provides 42 bug fixes and improvements. Documentation, sourc...
AjaxControlToolkit contains a rich set of controls that you can use to build highly responsive and interactive AJAX-enabled Web applications. AjaxControlToolkit contains more than 40 controls, including the AutoComplete, CollapsiblePanel, ColorPicker, MaskedEdit, Calendar, Accordion, and Watermark c...
Xamarin.Essentials: a kit of essential API's for your apps
IconPacks for stylish awesome WPF and UWP applications.
ArcGIS Runtime controls and utilities for Universal Windows Platform (UWP), Windows Presentation Foundation (WPF), Xamarin.Android, and Xamarin.iOS apps.
This package includes code only helpers such as Colors conversion tool, Storage file handling, a Stream helper class, etc.
This library provides helpers and extensions on top of Windows Composition and XAML storyboards. It is part of the Windows Community Toolkit.
This library provides XAML templated controls. It is part of the Windows Community Toolkit.
Fody add-in that provides custom interception. Supports Net45, NetStandard2.0 and UWP. Method, Property, Constructor and Field interceptors can be found in the package Cauldron.BasicInterceptors (https://www.nuget.org/packages/Cauldron.BasicInterceptors/)
A simple MVVM framework that heavily uses IL-weaving based on Fody.
Brings the functionality of the Windows.Devices.Geolocation APIs cross-platform with support for Windows, Android and iOS.
Brings the functionality of the Windows.Storage APIs cross-platform with support for Windows, Android and iOS.
Creating Windows Services is now a cake walk. This implementation can also handle localized service name and description.
Visual Studio dark theme for Cauldron WPF
Visual Studio dark theme for Cauldron WPF