Web designers spent lots of time in making mock ups of web pages, in which they have to use Web UI elements again and again. They can really save time if this Web UI element kits and stencils are already available to them.

In this article we have listed 40 completely free Web UI kits and stencils, which can be used in initial mockup or wireframing. Most of these files are available in .psd, .ai or png format.