With the WhatFont tool, a bookmarklet or the Google Chrome extension, you can find out in seconds which fonts a website uses. If you like a typeface on a page, just click the browser extension, move your cursor over the text, and the name of the font appears in a small box. Click the text once more and you get further details such as font-weight, font-style, font-size and line-height. A practical little helper for web designers and type fans that saves you the longer hunt for fonts with a developer tool.