What is the diffrence between web designer and web devloper?

Answer 1

Web Designer need creative skill.
Web Developer need technical skill.

Answer 2

A web designer deals with all what is interface, layout and the overall look of the website.
a web dev deals with the functional aspect of the site.
A web dev may also do both at the same time. I.e. He designs and do the back-end stuff at the same time, especially since the emergence of css frameworks.