StarUML is a free and open-source Unified Modeling Language (UML) modeling tool for Windows and Mac. It provides a wide range of features for creating and editing UML diagrams, including support for all 14 UML 2.0 diagrams. StarUML is a powerful tool that can be used by software developers, business analysts, and anyone else who needs to create UML diagrams.
StarUML is available for free download from the StarUML website. The software is available in both 32-bit and 64-bit versions for Windows and Mac. StarUML is also available in a portable version that can be run from a USB drive. The portable version is ideal for users who need to use StarUML on multiple computers.
StarUML : StarUML is an open source project to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal is a compelling replacement of commercial UML tools such as RationalRose, Together and so on.