A fast, open source
web browser engine.

WebKit is the web browser engine used by Safari, Mail, App Store, and many other apps on macOS, iOS, and Linux. Get started contributing code, or reporting bugs.

Web developers can follow development, check feature status, download Safari Technology Preview to try out the latest web technologies, and report bugs.

Release Notes for Safari Technology Preview 90

Release Notes for Safari Technology Preview 90

Safari Technology Preview Release 90 is now available for download for macOS Mojave and the macOS Catalina beta.

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Announcing the WebKit Tracking Prevention Policy

Announcing the WebKit Tracking Prevention Policy

Today we are publishing the WebKit Tracking Prevention Policy, covering: What types of tracking WebKit will prevent.

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Changing Page Settings on iOS Using Web Inspector

Changing Page Settings on iOS Using Web Inspector

If you’ve ever used Web Inspector before, chances are you’ve used (or are at least familiar with) the Develop menu.

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WebDriver is Coming to Safari in iOS 13

WebDriver is Coming to Safari in iOS 13

As anyone who has developed a mobile-friendly site can tell you, mobile browsers and desktop browsers are different.

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A New Bytecode Format for JavaScriptCore

A New Bytecode Format for JavaScriptCore

In revision r237547 we introduced a new bytecode format for JavaScriptCore (JSC).

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