You can try using the Entity Framework Power Tools , which is the add- Visual Studioin that was used to create the data model diagrams shown in these tutorials. The tools can also perform other functions, such as generating table-based entity classes in an existing database so you can use the database with Code First. After installing the tools, some additional parameters are displayed in the context menus. For example, when you right-click your context class in Solution Explorer, you will be able to generate a diagram. When you use Code First, you cannot change the data model in the chart, but you can move things around to make it easier to understand.