Check this link too. This works for MVC 5 too: http://stackoverflow.com/questions/12433736/asp-net-mvc-4-allow-dashes-hypens-in-urls

Dashed urls are much more SEO friendly and easier to read. (More on my blog post)

NuGet Package: https://www.nuget.org/packages/LowercaseDashedRoute/

To install it, simply open the NuGet window in the Visual Studio by right clicking the Project and selecting NuGet Package Manager, and on the "Online" tab type "Lowercase Dashed Route", and it should pop up.

Alternatively, you can run this code in the Package Manager Console:

Install-Package LowercaseDashedRoute

After that you should open App_Start/RouteConfig.cs and comment out existing route.MapRoute(...) call and add this instead:

routes.Add(new LowercaseDashedRoute("{controller}/{action}/{id}",
  new RouteValueDictionary(
    new { controller = "Home", action = "Index", id = UrlParameter.Optional }),
    new DashedRouteHandler()
  )
);

That's it. All the urls are lowercase, dashed, and converted implicitly without you doing anything more.

Open Source Project Url: https://github.com/AtaS/lowercase-dashed-route