Cookie Engine is a free tool that allows easy creation and manipulation of Cookie Clicker save codes. It was created by the owner of CommentBlock and the latest supported version of Cookie Clicker is 1.0465. The tool simply allows you to create Import Save Codes, which are encoded in Base64, and a pain to decode and analyze. Cookie Engine makes it quite simple to easily manipulate those codes.
To use Cookie Engine, Follow this link: http://commentblock.com/code/cookieclicker/ and fill out the form.
WARNING: This link is invalid and will not work with the current version of the game!