Backbone does that , you can just use one part of backbone without the rest. want are router ? use the Router , want models? use the Model object ,want just syn

Backbone does that , you can just use one part of backbone without the rest. want are router ? use the Router , want models? use the Model object ,want just sync ? use the Sync ect... backbone is not a MVC framework it is a collection of tools. Backbone doesnt force you into anything. That's why there are no controllers in Backbone ( Routers are not , routers are mediators ).