This paper shows a methodology and a support tool for automatically creating the source code of a mobile web application from design models. A designer only needs performing two models: Data model and User Interface with Navigation Model. All models are based on UML extended with stereotypes and tagged values allowing behavior configuration. Models extensions contain all necessary information for creating the complete source code of an application. A support tool was build easiness the process of modeling and configuring with the proposed methodology. This support tool has an example implementation allowing the generation of an ASP.NET MVC 4 mobile web application.