Google Chrome (commonly known simply as Chrome) is a freeware web browser developed by Google LLC.[13] It was first released in September 2008, for Microsoft Windows, and was later ported to Linux, macOS, iOS and Android. Google Chrome is also the main component of Chrome OS, where it serves as a platform for running web apps.
Google releases the majority of Chrome's source code as the Chromium open-source project;[14][15] however, Chrome itself is proprietary software.[16][13] One component that is not open-source is the built-in Adobe Flash Player (that Chrome has disabled by default since September 2016[17]). Chrome used the WebKit layout engine until version 27. As of version 28, all Chrome ports except the iOS port use Blink, a fork of the WebKit engine.[18][19][20]
As of 2018, StatCounter estimates that Google Chrome has a 66% worldwide usage share of web browsers as a desktop browser.[21] It also has 56% market share across all platforms combined,[22] because it has over 50% share on smartphones; and thus Chrome is most used browser in virtually all countries (most exceptions in Africa).[23] Its success has led to Google expanding the "Chrome" brand name on various other products such as Chrome OS, Chromecast, Chromebook, Chromebit, Chromebox and Chromebase.
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