UMLet is a free, open-source UML tool with a simple user interface: draw UML diagrams fast, build sequence and activity diagrams from plain text, export diagrams to eps, pdf, jpg, svg, and clipboard, share diagrams using Eclipse, and create new, custom UML elements. UMLet runs stand-alone or as Eclipse plug-in on Windows, OS X and Linux. Visual Paradigm can run on Mac, Windows and Linux and with same set of features supported. Users can open and edit the same project file under any operating system without extra conversion. Users can open and edit the same project file under any operating system without extra conversion.
Exceedingly powerful
Develop powerful software system requires an efficient operating system and UML modeling tool with advanced technologies. Here you have them all! Visual Paradigm assists you with everything you need throughout the entire software development cycle. In addition to producing stunning system design, its code generation support allows the production of source code from design specification in seconds. And its Hibernate support facilitates easy implementation of application that requires accessing database. Enjoy more by doing less. Visual Paradigm has done the complex tasks for you.
Requirement Diagram
Visual Paradigm provides a requirement diagram for specifying and analyzing requirements.
Glossary Grid
Let the terms say what you mean. And when others use them in the same project, they mean what you say.
Flow of Events Editor
Document the interactions between user and system (function) using the flow of events editor.
Flexible Doc. Composer
Convert your design to document by few mouse click. The generated document can preview and compare with the design side by side.
Open Source Sequence Diagram Tool For Mac
Instant Reverse Engineering
Reverse engineering UML class model from source code.
Instant Code Generation
Generate source code from UML diagrams to Objective-C.