I have just released a new tool at http://projects.jason-rush.com/buffer-overflow-eip-offset-string-generator that is a web equivalent of the Metasploit, pvefindaddr, and Mona scripts: pattern_create and pattern_offset.

This tool is to help find how far into a Buffer Overflow exploit string your return address needs to be in order to overwrite EIP successfully.

I appreciate any comments, suggestions, thoughts, etc...

Enjoy,
Jason Rush