whatfonttool.com
WhatFont is a tool for identifying fonts used on webpages. It is available as a bookmarklet, Chrome extension and Safari extension. When activated on a webpage, users can hover over text to retrieve font information, and the tool detects font serving services including Typekit and Google Font API. It supports Firefox 3.6+, Chrome 9+, Safari 4+, Internet Explorer 9 and has limited support for Internet Explorer 8.
