IBM® Rational® Modeler is a free, UML® 2.1 based environment for specifying systems, software, and architecture. Created by one of UML's founders and a key UML specification author, Rational Modeler enables users to improve communication by specifying, visualizing and documenting their system, architecture and software designs using a standard graphical language.

Rational Modeler allows users to gain access to a robust graphical design environment with check model facility, ability to create domain languages through profiles and requirements modeling. Rational Modeler models can be upgraded to the Rational Rhapsody family for model driven development (MDD) with behavioral code generation, model execution, SysML, UPDM, MARTE, model driven testing, and more.

This product is available in the following languages: English, German, Japanese, French, Swedish, Spanish.

This trial has all features enabled. Download the product at no charge.

Installation notes:

Academic Users: Rhapsody is free for research and classroom.

Platform supported: Windows™

Product specs

Sign in with your IBM id

Choose your platform

You will need to sign in with an IBM id before you can complete the download.

Great! Click the Continue button to sign in and proceed to your download.

Click the Continue button to create an IBM id. Then sign in and proceed to your download.

Contact IBM

Considering a purchase?