Open Source / Non-Proprietary
A UML modeling tool based on a textual notation.
TextUML Toolkit is an open-source IDE for UML that lets you create models at the same speed you write code. By adopting a textual notation, the TextUML Toolkit provides benefits you will not get elsewhere:
* increased modeling productivity
* the features you like in your favorite IDE: instant validation, syntax highlighting, outline view, textual comparison
* live graphical visualization of your model as class diagrams
* compatible with any tools that support Eclipse UML2 models