Top 20 NuGet custom Packages

A shared Xamarin wrapper binding for HttpClient
A fluent tooltip for Android
JsonConverters customizados
Custom Maps plugin for Xamarin Forms
Custom default configurations for WebApi
Essential UI Kit for Xamarin Forms - Easy-to-Use
Set of custom controls with hybrid technology for Xamarin.Forms
.Net Embedded Analytics and Report Generator that allows programmers to easily add Report building functionality to their ASP .NET Web Application
Panel with ability to expand and collapse
Newport is a library providing building blocks for Windows Phone and Windows Store App development. It offers an MVVM framework, attached properties for existing controls and a set of custom controls.
[FX4.0] This module contains BasicAuthenticationHttpModule module that allow you using easily a custom basic http authentication for every IIS/ASP.NET hosted applications, like also WCF REST, WCF SOAP, OData Services & so on...
EFMembership gives you Membership Provider for System.Security.Membership or WebMatrix. With supporting OAuthMembership for external login like (Facebook, Twitter, Yahoo, Google, ...). You can use your custom model class or Builtin exist models like my Default models or Microsoft membership style
A user type convention which sets custom type for enums
The implementation of this string formatting function is inspired by .NET's (and other Microsoft® products') Composite Formatting feature. Therefore the behaviour and method signatures match what's described in the "Getting started with the String.Format method" MSDN article as closely as possible. ...
Library provides WCF Rest behaviors extension - EnableCorsBehavior - CustomAuthenticationBehavior - TypedUriTemplateBehavior See more details here: https://github.com/cshandler/WebHttpBehaviorExtensions
WPF Library which helps to create text box which has look feel plus functionality similar to IP text box
MSBuild custom tasks to help with the build process