Top 20 NuGet ASP.NET Packages

Installs files/classes to help with ASP.Net Identity extensibility for Umbraco back office
DryIoc extension for ASP.NET MVC
Module used for making HTTP REST requests. You can override the factory for HttpClient to change the behavior.
NWebsec middleware for OWIN applications. NWebsec helps you set important security headers and detect potentially dangerous redirects. See project website for documentation.
OWIN middleware for HTTP Basic Authentication in OWIN/Katana applications.
This package contains the runtime assemblies for ASP.NET Web Pages. ASP.NET Web Pages and the new Razor syntax provide a fast, terse, clean and lightweight way to combine server code with HTML to create dynamic web content.
TweetSharp v2 is a fast, clean wrapper around the Twitter API. It uses T4 templates to make adding new endpoints easy.
JavaScript client for ASP.NET SignalR.
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Zero-trust security for every web app. Protect MVC web apps and RESTful APIs with a multi-stage security pipeline that includes XSS detection, authentication, IP firewall, two-factor, activity/data authorization, account verification and suspension checks. Available for all major platforms includ...
Contains all assemblies required to use the Kentico API in class libraries developed for ASP.NET MVC 5 applications. Does not include content items or other modifications intended for the MVC web application itself.
Owin integration for Parbad project. For more information see: https://www.nuget.org/packages/Parbad/
Lara Web Engine is a lightweight C# framework for web user interface development.
Provides capabilities to easily build Web APIs running in Azure.
Extensions for using Strainer with ASP.NET Core.
Allows consumers to easily convert strings to Markdown using the `IMarkdownConverter` interface. Contains a markdown wrapper around `lunet-io/markdig`.
Allows consumers to easily convert HTML strings to PDF using the `IHtmlToPdfConverter` interface. This package contains an implementation that use `PhantomJs`; you will also need the `ForEvolve.PhantomJs.Dependencies` package to load the PhantomJs binaries.
Event Sourcing, CQRS and DDD framework for modern C#/.NET applications. Base domain model package.
Event Sourcing, CQRS and DDD framework for modern C#/.NET applications. History-tracking extension package.
Castle Windsor Mvc facility lets you easily add windsor to aspnet mvc web apps.