SpurApp from Silicon Valley design firm ZURB is a neat tool to quickly analyse, review & discuss a webpage user interface design.

if you want to know more, just head to http://www.spurapp.com/

and enter any webpage url into their box. it’s gonna take a while to get a picture version of the page so wait till the sun is set on the loading page (not the actual sun outside, the sun on the screen :P)

then Spur will provide you a box with few buttons. you just need to click a button and analyse the outcome of changed webpage image. they have also gave a few hints about analyzing the design. check my screenshots below for details.

(Source: readwriteweb.com)