Google Chrome's Developer Tool

Ran across this about 3 months ago by pressing Ctrl + Shift + J by instead of Ctrl + Shift + N for going incognito. Pretty cool way of analyzing web/http pages.

In the past I covered other applications which do similar things, but this is built into Chrome, so there isnt anything to download. ... https://www.youtube.com/watch?v=PqYyaKnDVqc