Google Chrome is a freeware web browser

Google Chrome is a freeware web browser [6] developed by Google that uses the WebKit layout engine. It was released as a beta version for Microsoft Windows on September 2, 2008, and as a stable public release on December 11, 2008. As of September 2012, according to StatCounter, Google Chrome had 34% worldwide usage share of web browsers making it the most widely used web browser.[7] W3Counter indicated that Chrome became the leading browser globally in August 2012 with 28% marketshare.[8] However, Net Applications indicates that Chrome is only third when it comes to the size of its user base, behind Internet Explorer and Firefox.[9]In September 2008, Google released a large portion of Chrome's source code as an open source project called Chromium,[10][11] on which Chrome releases are still based.

http://en.wikipedia.org/wiki/Google_Chrome