Top 20 NuGet winrt Packages

WebClient and HttpClient for Windows Phone and WinRT. Supports Wensus Analytics performance monitoring.
Fody add-in for injecting INotifyPropertyChanging code into properties.
PCL Testing is a simple test framework for writing portable tests and running them on .NET, Windows Phone, Windows Store, Xamarin.iOS, Xamarin.Android, and Silverlight.
Helper classes for building Portable Class Libraries that use the the Model-View-ViewModel pattern and can be deployed to all the following platforms: WPF, Silverlight, Windows Store, Windows Phone, iOS and Android.
Tab control based on html fragments
search engine to index and search content locally
navigation control in a side flyout
control implementing semantic zoom interface. It's usefull for wrapping custom controls in a SemanticZoom control
Control to display items in a grid way (horizontal or vertical). Supports several layout options
custom Hub Control relying on WinJSContrib navigator control
Pop out a What's new screen at startup and in settings charms
Control and css framework for handling data forms with validation
Helps manage datasources with grouping and provide a control to wrap listview with grouping and semantic zoom
This is a small base framework for MVVM in winRT, Also included some necessary extension methods.
Rivets is a C# implementation of App Links. It's functionally a port of Bolts, the Java/Obj-C implementation. App Links are a new open source, cross-platform standard for helping link between Mobile and the Web (and vice-versa). App Links are a defined set of metadata that can be advertised within...
FreeImage for WinRT and WP8.1