yUML is described as 'to model applications' and is an website in the Development category. There are more than 25 alternatives to yUML, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Android. The best alternative is PlantUML, which is both free and Open Source. Other great sites and apps similar to yUML are Lucidchart (Freemium), Visual Paradigm (Paid), StarUML (Paid) and Papyrus UML (Free, Open Source).
ClassBuilder is freeware CASE tool targeted at the C++ developer, running on Win2K-XP. It lets you create, manipulate and navigate classes, class relations, class members and class methods at a high level of abstraction through a graphical user interface.
Whether you are a Business Architect, System Architect, Developer, Analyst or Designer, Modeliosoft meets your needs through its high quality solutions for modeling, and report, architecture or code generation.