Webkit
WebKit is a widely-used open-source web browser engine that powers numerous web browsers and platforms globally. It is most notably recognized for its role in Apple's Safari browser and all browsers on iOS and iPadOS.
WebKit originated as a fork of the KHTML and KJS libraries from the KDE software community. It has evolved considerably due to contributions from KDE contributors, Apple, Google, Nokia, Bitstream, BlackBerry, Sony, Igalia, and other developers. Its adaptability has allowed it to support multiple operating systems, including macOS, Windows, Linux, and various other Unix-like systems.
WebKit's most prominent role is in Safari, Apple's native web browser for macOS and the iOS/iPadOS ecosystem. However, its use is not limited to Apple products. The engine is also employed in the PlayStation consoles starting with the PS3, the Tizen mobile operating system, the Amazon Kindle e-book reader, and Nintendo consoles such as the 3DS Internet Browser. Additionally, WebKit powers the GNOME Web, a web browser from the GNOME project, and was used in the now-discontinued BlackBerry Browser.
For a period, WebKit was also an integral part of Google Chrome's architecture before Google developed Blink, a fork of WebKit, to suit its specific needs. Despite this shift, WebKit remains a pivotal component of many browsers due to its robust and flexible framework.
The engine's widespread utility has also influenced the development of CSS, where certain parameters are prefixed with -webkit-, denoting their association with the WebKit engine. This has facilitated uniformity and compatibility across various web technologies and platforms.
On mobile platforms, especially iOS, all browsers are mandated to use WebKit, including adaptations of browsers like Firefox. This requirement ensures that the WebKit layout engine is the standard across the iOS ecosystem, maintaining consistency in how web content is rendered on Apple's mobile devices.