Draw and edit sequence diagrams in seconds, using this online tool. WebSequenceDiagrams lets you stop worrying about moving lines and boxes on the screen. Enter a text description of what should happen, and the tool does the rest.

• MaintainJ Plugin 2.8
  MaintainJ, an Eclipse plug-in, generates runtime UML sequence and class diagrams for a given use case, helping the users to quickly understand a complex Java or J2EE...

• Blueprint Software Modeler - Community Edition 1.4.0
  Blueprint Software Modeler FREE Community Edition

• Sequence Diagram Editor 1.6
  Sequence Diagram Editor simplifies the creation and maintenance of UML sequence diagrams and call flows. It automatically takes care of layout and formatting (across multiple pages if needed) allowing you to easily create sequence diagrams much...

• EventStudio Sequence Diagram Designer 2.5
  Sequence diagrams are a very effective way of modeling an object oriented system

• EventStudio Sequence Diagram Designer 2.5
  Sequence diagrams are a very effective way of modeling an object oriented system. Unfortunately, most UML based modeling tools only offer primitive support for sequence diagrams. EventStudio provides advanced constructs for sequence diagram based object modeling. EventStudio supports generation of message sequence charts (MSCs) and call flow...

• Trace Modeler for UML Sequence Diagrams 1.6
  Trace Modeler is an easy to use and smart editor for UML sequence diagrams

• SDE for JBuilder (CE) for Windows 3.0 Commun
  Visual Paradigm SDE for JBuilder is a UML CASE tool/plug-in tightly integrated with JBuilder. This UML CASE tool supports full software development lifecycle - analysis, design, implementation, testing and deployment. This UML tool helps you build...