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.

Speedometer 2.1

Speedometer 2.1

We are announcing an update to the Speedometer benchmark.

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Understanding Garbage Collection in JavaScriptCore From Scratch

Understanding Garbage Collection in JavaScriptCore From Scratch

JavaScript relies on garbage collection (GC) to reclaim memory.

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New WebKit Features in Safari 15.6

New WebKit Features in Safari 15.6

Safari 15.6 is the seventh major release of Safari since last fall’s Safari 15.0.

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Meet Web Push

Meet Web Push

Websites have many reasons to notify their users of time-sensitive or high-priority events, even if the user does not currently have the site open.

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Web technology sessions at WWDC22

Web technology sessions at WWDC22

WWDC22 is here, and with it, a host of announcements of new web technology shipping in WebKit on macOS, iOS and iPadOS, including advancements in privacy and security – plus new features for Safari, Web Inspector and Safari Web Extensions.

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