Generate Java J2EE, C#, VB and C# source code from a definition of the application requirements. It separates business analysis (forms, database tables) from implementation (web form, desktop application, mobile application). [Commercial]
A parsing tool and a source code generator works on generative programming. It offers facilities for building a DSL, for generating code, for source-to-source translation or program transformation, for driving the automation process. [Open source, LGPL]
A freeware template-based code generator that can generate code for any ASCII-based language. CodeSmith templates use a syntax nearly identical to ASP.NET syntax so that creating templates should feel immediately familiar to ASP.NET developers.