It has long been tormented by the lack of a Sass implementation (something like a CSS preprocessor) for .Net. Here on Habré ran information about the implementation of the compiler Sass in C + + - libsass , fast and efficient. Comrade rushman made binding for Python, and I made for .Net. Compiled libsass on C ++ / CLI. I had to file a little. Maybe then I will describe in more detail. The project lives here: Sass.Net . NuGet Packages: - XWeb.Web.Sass.Core is a pure compiler wrapper. - XWeb.Web.Sass.Handler - http request handler. - XWeb.Web.Optimization.Sass - integration with Microsoft ASP.NET Web Optimization Framework . - XWeb.Web.Sass.Full - all together for convenience.