Penetration Testing: Webstretch - open source web penetration toolkit

[Simon Shanks <javawebexam () hotmail com>]

Enables a user to view & alter all aspects of http comunication with a
web site via a proxy. Primarily used for security based penetration
testing of web sites, it can also be used for debugging during
development. Basically, its main feature is that it allows you to
access the web, and shows you the information its about to pass to the
web server, so that you can view & alter any info (all while still in
your browser).

Available from

http://sourceforge.net/projects/webstretch

(written in Java) 

New features appearing all the time. e.g.

* request alteration
* request viewing
* html comment detection
* browser impersonation
* hidden area detection
* proxy chaining

Please add any problems, feature requests, comments, etc to the page
linked above.