sdedit – Quick Sequence Diagram Editor

My coworker(his blog is located here) pointed me to this tool and I found it very useful.Quick Sequence Diagram Editor is a tool for creating UML sequence diagrams from textual descriptions of objects and messages that follow a very easy syntax.

Below you may see a syntax example for Sequence Diagram shown in screenshot – it’s very intuitive and easy to understand.


The tool supports actors, constructors, destructors, threads and on-diagram comments that can be used to represent conditions or loops.
Diagrams can be exported in PNG format.

Quick Sequence Diagram Editor


Download sdedit

Please choose a file named "sdedit-light_no_export_library.exe" to run the sdedit on a Windows Platform. The exe file is wrapped around a Java archive (you still need Java 5 or higher).)

Technorati tags: diagram, uml, tools


3 Responses to “sdedit – Quick Sequence Diagram Editor”

  1. anonymous
    5. September 2007 at 11:33

    nice tool. but it’s a pitty that i am not able to edit the diagrams with mouseactions

  2. Jan Michalowsky
    20. April 2009 at 16:06

    To anonymous: Forget your mouse. If you want to build a standard conform thing, it is totally necessary that this thing is build by a model and not by click and drag objects. You really want such WYSIWYM tools believe me. Otherwise everybody will declare ‘his’ diagram style as the correct standard.
    To the program: nice work

  3. Steve
    25. May 2010 at 15:02

    I skipped over this tool many times while looking for a sequence diagram editor simply because I’ve been brainwashed by M$ to often. Coming to my senses, I decided to check it out and see just how easy it was to use. I was shocked at how easily I could create and manage a sequence diagram. Not only is this a good idea, it’s a good model.

    I’ve spent way too many hours dinking around with Visio to get a sequence diagram that looks halfway decent. Quick Sequence Diagram Editor is simply much better. It’s a single tasker and does it well. Once you “get it” and let go of your desire to fiddle with the graphics (the diagram) you realize you’re actually better off and can insert changes faster, make copies faster, and build seq. diagrams faster.

    I’m really hoping the author decides to write more for other UML diagrams.

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