Top 20 NuGet mvc3 Packages

Simple Injector ASP.NET MVC Integration.
Quick Start for Simple Injector ASP.NET MVC integration. This package adds the needed dependencies and code examples to get started quickly with Simple Injector in an MVC application.
Unity.Mvc3 is a library that allows simple Integration of Microsoft's Unity IoC container with ASP.NET MVC 3. This project includes a bespoke DependencyResolver that creates a child container per HTTP request and disposes of container resolved IDisposable instances at the end of the request.
Extension for Ninject providing integration with ASP.NET MVC3
Validation attributes that extend Data Annotations and provide integrated server and client side validation (using unobtrusive jquery validation).
BotDetect CAPTCHA Generator protects ASP.NET/Core forms from spam. The Captcha protection is available on .NET/Core for jQuery, Angular & React frontends and ASP.NET MVCCore, MVC1-5, WebForms & WebPages backends. It works in China; doesn't stalk; nor does it slurp your form-data -- think: GDPR & LGP...
MvcDonutCaching provides extensible donut output caching for ASP.NET MVC 3 and above.
Actya is a simple ASP.NET MVC CMS that can be added to an existing .NET application.
A forked version of PetaPoco http://www.toptensoftware.com/petapoco/ - Based on v5 branch. Supports Async and Multipoco operations. Includes support for StoredProc extensions and XML and Table-Valued Parameter queries.
Compress and combine engine for ASP.NET MVC
A Paging library for ASP.NET MVC.
Dynamo IoC Web Extensions provide web specific lifetimes (request and session) and integrates with both Mvc 4 and the new Web Api (including using Scopes).
Adds EditorTemplates for the new html5 input types (including email, tel, and url) to Mvc 3 projects. For example, Html.EditorFor(a=>a.Email) can now generate an html5 input type='email'.
A simple ASP.NET MVC3/4/5 helper for Gravatar providing extension methods to HtmlHelper and UrlHelper. Example usage: @Html.Gravatar("MyEmailAddress@example.com", 80)
Adds support for adding and displaying Rails "flash" messages to MVC. Works with any version of MVC 3.0 and higher. See the project URL for more examples.
A very simple repository for PetaPoco, becuase you have better things to be getting on with!
Enables SimpleMembership API (from ASP.NET WebPages) to be used with ASP.NET MVC3. This allows you to use the WebSecurity helper found in the WebMatrix.WebData namespace. See http://ander.ly/SimpleMembershipMvc3 for "readme" instructions.
A simple and lightweight data access tool for .Net
A simple and lightweight data access tool for .Net
Helpful utilities for your ASP.NET MVC code.