WebKit

WebKit is an open source browser engine managed by Apple with a consortium of developers. It is used in Safari for macOS and iPadOS, and in all web browsers for iOS. It is also implemented, though not directly accessible, in watchOS 5 and later.

Development
WebKit was derived from browser layout engine and the  JavaScript libraries originally developed by. Participating developers in WebKit included Adobe, Apple,, Google, Intel, and. In 2013, Google forked its work on WebKit into its own open source browser engine called for use in its Chrome browser.