Top 20 NuGet aspnet Packages

Simple cache wrapper for asp.net projects. Supports Filesystem and InMemory out of the box
ASP.NET MVC5 template for MarkdownWeb Open MarkdownWebController in Controllers folder once installed.
Provides WebSocket support to Nancy applications running on an ASP.NET host.
Provides a test harness for WebSocket testing in Nancy applications.
Implementation of Microsoft Asp.Net identity using Simple.Data for database access
A library bringing output caching (similar to MVC's "OutputCache"), to Web API actions. CacheOutput will take care of server side caching and set the appropriate client side (response) headers for you. This is a version for Web Api 2 only.
Demo library for the ASP.NET 5 Unleashed talk. More details at http://lzno.tk/aspnet-unleashed
WebEx.Core is a core library of WebEx project
XCaptcha is an extendable and simple to use framework for creating CAPTCHA images.
Extension to Strathweb CacheOutput WebApi2 for Microsoft AppFabric Distributed Caching
A helper library, for JavaScriptViewEngine, that will transpile ES6.
Asp.NET Web API client generator for TypeScript files
AspNet.Optimization.Extensions Class Library
Trace Hub components that make your existing ASP.NET Web Application have TraceHub functionality. And you may need to cherry-pick a portion of Site.css to your Web project.
Allows you to customize your swagger documentation using code, including support for providing multiple examples for responses and parameters.
PACKAGE MOVED TO: https://www.nuget.org/packages/AspNetSeo.Mvc
An unofficial Unity implementation of the interfaces in Microsoft.Extensions.DependencyInjection.Abstractions.
Package Description
A library bringing output caching (similar to MVC's "OutputCache"), to Web API actions. Strathweb.CacheOutput will take care of server side caching and set the appropriate client side (response) headers for you. This is a version for Web Api 2 only.
C# net core library to bring Stability in your project. Resiliency Pattern to provide stability of your application execution path. Current Implementation Supports Circuit-breaker and Retry Commands. Subscribed the live feed. Best for Async Calls.