What is WebKit? It's an open source web browser engine (not a browser). A fork of KHTML (Konqueror) by Apple. It's a library Composed of 2 sub libraries: WebCore (HTML rendering engine) JavaScriptCore (JavaScript engine) With bindings for multiple languages (including Perl). Used by Browsers Safari, Google Chrome, Epiphany, Konqueror Applications Mail.app, Entourage (OS X), Steam OSes iOS, Android