WebKit is the name of the {{Glossary("browser")}} engine used by {{Glossary("Apple Safari")}} to display web pages. Because it is highly portable and customizable it is also used in many mobile web browsers.
WebKit's {{Glossary("HTML")}} and {{Glossary("JavaScript")}} code originally started as a fork of the KHTML and KJS libraries, but since then has been further developed by KDE, Apple, Google, Nokia, BlackBerry and others.
The engine is partly available under a BSD-style license, partly under the {{Glossary("LGPL", "GNU Lesser General Public License")}}. As of March 2013, Webkit is a trademark of Apple.
WebKit consists of two important components:
WebCore - Library for layouting, rendering and {{Glossary("DOM")}}
JavaScriptCore - JavaScript engine