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 107

Release Notes for Safari Technology Preview 107

Safari Technology Preview Release 107 is now available for download for macOS Catalina and macOS Mojave.

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A Tour of Inline Caching with Delete

A Tour of Inline Caching with Delete

If you search for any JavaScript performance advice, a very popular recommendation is to avoid the delete operator.

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Web Animations in Safari 13.1

Web Animations in Safari 13.1

With the release of iOS 13.4, iPadOS 13.4, and Safari 13.1 in macOS Catalina 10.15.4, web developers have a new API at their disposal: Web Animations.

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New WebKit Features in Safari 13.1

New WebKit Features in Safari 13.1

This year’s spring releases of Safari 13.1 for macOS Catalina, iPadOS, iOS, and watchOS bring a tremendous number of WebKit improvements for the web across Apple’s platforms.

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Full Third-Party Cookie Blocking and More

Full Third-Party Cookie Blocking and More

This blog post covers several enhancements to Intelligent Tracking Prevention (ITP) in iOS and iPadOS 13.4 and Safari 13.1 on macOS to address our latest discoveries in the industry around tracking.

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