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I don't have or want to learn Microsoft Visio or other complicated diagramming software. Is there a web app to generate simple sequence diagrams?

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closed as off topic by Eight Days of Malaise, phwd Oct 16 '12 at 14:14

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11 Answers 11

up vote 7 down vote accepted

Gliffy

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+1 Gliffy is by far, the best I have seen. –  M.N Jul 2 '10 at 7:18
    
I like this answer better than my own because it's more featureful. –  Stephen Jennings Jul 12 '10 at 2:00
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Web Sequence Diagrams lets you create sequence diagrams using a very simple scripting language. A simple script might look like this, with its results:

participant Client as C
participant Server as S

C->S: GET HTTP/1.0 /index.aspx
activate S
note over S: Generate HTML
S->C: 200 OK

HTTP Request

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looks like online-graphviz :) –  akira Jul 2 '10 at 5:13
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I always forget about this tool when I need it, which is why I asked and answered my own question. The other answers here are welcome and useful, though. –  Stephen Jennings Jul 2 '10 at 5:22
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yUML is my personal favorite for generating diagrams, even if they're not necessarily UML.

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So glad you posted this, awesome tool! –  scunliffe Oct 19 '10 at 17:42
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If you're looking for a more intuitive program than Visio, LucidChart is a good option. It's a HTML5 application that you can pick up very quickly.

LucidChart has very robust UML tools to create sequence diagrams, state diagrams, activity diagrams, etc.

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draw.io is a free online diagramming application capable of doing this. Currently you would have to group the two elements of the sequence object to get them to move together, but we'll improve that soon.

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While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. –  user221287 Nov 29 '12 at 4:57
    
1) Why didn't you make the same comment for the top answer which is simply the link and nothing else? 2) I own the domain, I've paid for it for 10 years, it's not going anywhere. –  David Nov 29 '12 at 9:34
    
Because I got your answer to "review" under the peer reviewing system of this site and not the above answer. –  user221287 Nov 29 '12 at 15:04
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Google Docs -> Drawing

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This is a pretty interesting tool for generating simple sequence diagrams... you just have to learn the syntax: http://www.websequencediagrams.com/

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thats the same @stephen jennings posted a minute before you. upvote his, delete yours. –  akira Jul 2 '10 at 5:25
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Cacoo allows collaboration.

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I have created an online sequence drawer, with which you can draw a beautiful sequence diagram, with simple pseudo code. seqDia

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Lovely Charts is very simple to use and has a web and desktop version.

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Found another lightweight online sequence diagram tool: http://www.ckwnc.com/

It is similar to seqDia mentioned before. Transforms script to a diagram.

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Per FAQ please disclose your affiliation with the mentioned site, otherwise this post could be deemed spam and removed as such. –  Bradley A. Tetreault Oct 16 '12 at 14:52
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My apologies. I am not related to this site not in any way. I googled "online sequence diagram" and it popped out as ~30th result. Before that I searched an answer from Stack environment and ended up here. Just found a lightweight tool that I wanted to share. –  vellotis Oct 18 '12 at 7:18
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