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**Category:** Rails\
**Created:** [April 17, 2007, 4:35pm UTC](https://www.ruby-forum.com/t/automatic-diagram-generation-with-html-output/92257 "2007-04-17T16:35:34Z")\
**Posts on this page:** 4\
**Page:** 1
**Author:**  [@isbof](https://www.ruby-forum.com/u/isbof)\
**Post date:** [April 17, 2007, 4:35pm UTC](https://www.ruby-forum.com/t/automatic-diagram-generation-with-html-output/92257/1 "2007-04-17T16:35:34Z")
Does any one know of a good, open source, diagram package/library that
generates html pages?
I need to show a complex relationship between web pages, a normal tree
structure would not be enough.
IsBOF
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**Author:**  [@isbof](https://www.ruby-forum.com/u/isbof)\
**Post date:** [April 18, 2007, 2:39pm UTC](https://www.ruby-forum.com/t/automatic-diagram-generation-with-html-output/92257/2 "2007-04-18T14:39:44Z")
OmniGraffle from the OmniGroup is a great diagraming tool, though
it’s not open source. It outputs to HTML and handles linking in the
html output as well. I use it for diagramming classes as well as
quick & dirty application flow mockups.
Niels
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**Author:**  [@isbof](https://www.ruby-forum.com/u/isbof)\
**Post date:** [April 20, 2007, 1:27am UTC](https://www.ruby-forum.com/t/automatic-diagram-generation-with-html-output/92257/3 "2007-04-20T01:27:17Z")
At 2:34 PM +0000 4/17/07, IsBOF wrote:
> Does any one know of a good, open source, diagram
> package/library that generates html pages?
>
> I need to show a complex relationship between web pages,
> a normal tree structure would not be enough.
GraphViz is good for mechanical generation of diagrams of
directed graphs. It generates a variety of image formats,
as well as image maps. These can be folded into web pages.
## -r
[http://www.cfcl.com/rdm](http://www.cfcl.com/rdm) Rich M.
[http://www.cfcl.com/rdm/resume](http://www.cfcl.com/rdm/resume) removed\_email\_address@domain.invalid
[http://www.cfcl.com/rdm/weblog](http://www.cfcl.com/rdm/weblog) +1 650-873-7841
Technical editing and writing, programming, and web development
---
**Author:**  [@isbof](https://www.ruby-forum.com/u/isbof)\
**Post date:** [April 20, 2007, 1:45am UTC](https://www.ruby-forum.com/t/automatic-diagram-generation-with-html-output/92257/4 "2007-04-20T01:45:19Z")
here it is, and yes, it’s foss:
[http://railroad.rubyforge.org/](http://railroad.rubyforge.org/)