I need a tool to compare the design of a website, I do not want to compare the HTML code only, but the output design.
Is this even possible? also is there any opensource program of this kind?
I have searched google, but I only get one candidate so far which is an HTML Match.
For simpler pages HTML Match mentioned above could do the job. If I have to compare the design of two "complex" pages (including layout, space, image and text changes) I would do a two-step approach:
It is not perfect but should work.
[UPDATE] HTML Match seems dead, see this answer for an alternative solution.