A configurable toolkit for creating domain-specific modeling and program synthesis environments. Developed at Vanderbilt University, Nashville, Tennessee. [Open Source]

A list of UML modeling tools, short reviews and prices (Objects by Design).

Calculates structural design quality metrics such as coupling, size, complexity for UML designs and provides XMI import. [Commercial, Free Trial]

A design environment for business process modeling (BPM), service and component-based design (CBD), UML and database design. [Commercial, Free Trial]

UML Modeling Tool that allows you to draw UML Diagrams, generate code, and reverse engineer popular OO languages. By MicroGold Software Inc. [Commercial, Free Trial]

MDWorkbench is a model-driven engineering development environment to build source code, text generators and model transformers. [Commercial, Free Edition]

Environment for code generation from UML models, based on XMI, to J2EE, Web services, xml schema and other [Open Source, LGPL]

Human-friendly textual notation for UML. High-quality PDF rendering based on MetaPost, suitable for LaTeX typesetting. [Open Source, GPL]

Visual UML is an easy-to-use yet powerful visual UML tool for object modeling that provides support for the following UML 1.4 and 2.0 diagrams. [Commercial, Free Trial]

UML Modeling Tool that supports incremental code generation and reverse engineering for C++, Java, Ada and IDL. By Aonix. [Commercial]