The ASP.net MVC HTML5 Toolkit contains a rich set of controls that you can use to build ASP.net websites using HTML5. Harness the power of HTML5 and start using it in your applications. It's lightweight and can be a great step in getting your website up to speed with HTML5.

Simple security package for ASP.NET, including the basic authentication HTTP module and several membership and role providers. Supports plain text, XML file, SQL Server, SQL Compact or any other database as data storage.

The OpenSearch Toolkit provides ASP.NET developers with drop-in support for OpenSearch. This lets you quickly and easily publish valid search suggestions to all the major browsers.

Bootstrap is a toolkit from Twitter designed to kickstart development of webapps and sites. It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more.

The Coding4Fun Toolkit has multiple controls and useful items for XAML based applications.

A toolkit for WPF for the Kinect for Windows SDK

WCF RIA Services Toolkit - jQuery Client

The WPF Toolkit is a collection of WPF features and components that are being made available outside of the normal .NET Framework ship cycle. The WPF Toolkit not only allows users to get new functionality more quickly, but allows an efficient means for giving feedback to the product team. Many of the features will be released with full source code ... More information

Windows Phone Toolkit Test Framework provides an easy way to integrate unit tests for your Windows Phone apps.

The MVVM Light Toolkit is a set of components helping people to get started in the Model-View-ViewModel pattern in Silverlight, WPF 4.5, Windows Phone 7/8 and Windows 8. It is a light and pragmatic framework that contains only the essential components needed. This RTM version of V4.0 contains only the libraries!

Extensions to WCF Data Services that make it easier to expose arbitrary data sources.

Includes SOAP and JSON Endpoints, EntityFramework Code-First support, Linq to Sql support, Unit Test Host, T4 code generation, and the Windows Azure Table Storage DomainService. RIAServices.Server is also included, which allows for easier bin-deployment of your RIA Services applications by referencing the core server assemblies from the NuGet pack... More information

This toolkit is built by Thuzi to give the community a reusable framework developing on Windows Azure.

Website: mytoolkit.codeplex.com

Set of simple and clean, yet very useful components for developing ASP.NET Web Form applications. Includes embedded popular Silk icon set.

QRCode Library is a .NET component that can be used to encode and decode QRCode. QRCode is a 2 dimensional bar code that originated in Japan. Nowadays it is widely used in a wide range of industries, e.g. for vehicle parts tracking and inventory management. QR stands for �Quick Response�. It was created by the Japanese corporation Denso-Wave in 19... More information

Helper classes, Visual Studio 2010 templates, code snippets and samples for building WPF MVVM applications.

Business Logic Toolkit MySql Data Provider for .NET

There's a lot broken with the stock standard ASP.NET MVC error handling. It can't display cshtml (Razor) pages :( They 302 redirect to the html error page. There's too many places to wire up, to handle errors. Fear not! This package can save your day! Install it and then define your error pages in your web.config. That's more or less it :) The h... More information

WCF RIA Services Toolkit - Silverlight ViewModel (MVVM) features