NClass - Easily create UML class diagrams

NClass is an easy to use, handy tool designed to enable you to easily create UML class diagrams with full C# and Java language support.

The user interface is designed to be simple and user-friendly for easy and fast development. Properties, enums, delegates and other language specific elements are fully supported with strict syntactical and semantical verification.
Here are some key features of "NClass":

· Full C# and Java support with many language specific elements
· Simple and easy to use user interface
· Inline class editors with syntactic parsers for easy and fast editing
· Source code generation
· Reverse engineering from .NET assemblies (thanks to Malte Ried)
· Configurable diagram styles
· Printing / saving to image
· Multilingual user interface
· Mono support for non-Windows users

Link

NClass from Home Page