
Blueprint Software Modeler Community Edition is a free UML2.1 modeling tool for non-commercial users. It supports the most important UML diagrams:

Class Diagram

Package Diagram

Component Diagram

Use Case Diagram

Activity Diagram

State Machine Diagram

Sequence Diagram
Additional diagrams currently under development, making the UML modeling complete, will be included shortly:

Composite Structure Diagram

Object Diagram

Deployment Diagram

Communication Diagram

Interaction Overview Diagram

Timing Diagram
Additional features on top of the UML diagrams:

Integrated with and built on top of the Eclipse3.2 IDE

Automatically validates your design through its validation engine which checks all UML2.1 constructs

Complete implementation of the UML2.1 specification; rich semantics of all UML2.1 elements and features, reflected in the diagrams
General features:

Extended Documentation on all UML constructs; changes in the Model are automatically reflected in the documentation.

Detailed requirements whereby the quality (sub)characteristics are described according the ISO 9126 Standard

Copy & Paste

Drag & Drop

Printing