WebKit Open Source Web Browser Engine

WebKit for Web Developers

WebKit is the web browser engine used by Safari, App Store, and many other OS X, iOS, and Linux applications. Web developers can stay updated on feature support, follow development on the blog, try out the latest web technologies by downloading Safari Technology Preview and report bugs.

Contributing to WebKit

You can provide bug reductions or contribute code. Get started contributing code by installing developer tools and checking out and building the source code. Learn more about the project and our performance goals.

WebKit Open Source Web Browser Engine

WebKit for Web Developers

WebKit is the web browser engine used by Safari, App Store, and many other OS X, iOS, and Linux applications. Web developers can stay updated on feature support, follow development on the blog, try out the latest web technologies by downloading Safari Technology Preview and report bugs.

Contributing to WebKit

You can provide bug reductions or contribute code. Get started contributing code by installing developer tools and checking out and building the source code. Learn more about the project and our performance goals.
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Release Notes for Safari Technology Preview 19

Safari Technology Preview Release 19 is now available for download for macOS Sierra.

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URL Parsing in WebKit

URLs have been used for decades now and you'd would think they would have consistent behavior…

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Introducing Custom Elements

A little over a year ago, we announced the introduction of slot-based shadow DOM API, a lightweight mechanism to encapsulate a DOM tree by allowing the creation of a parallel DOM tree on an element called a “shadow tree” that replaces the rendering of the element without modifying the regular DOM tree.

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Release Notes for Safari Technology Preview 18

Input events on by default, <link> stylesheets load in Shadow DOM, Web Worker Debugging and more...

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Release Notes for Safari Technology Preview 17

Safari Technology Preview Release 17 is now available for download for macOS Sierra.

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Variable Fonts on the Web

Variable fonts can expose any number of axes, each controlling a different aspect of the font.

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Release Notes for Safari Technology Preview 16

Safari Technology Preview Release 16 is now available for download for macOS Sierra.

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