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 54

Release Notes for Safari Technology Preview 54

Safari Technology Preview Release 54 is now available for download for macOS Sierra and macOS High Sierra.

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New WebKit Features in Safari 11.1

New WebKit Features in Safari 11.1

Update: This post has been updated to omit Offscreen Canvas which is not available in Safari 11.1 on macOS and Safari on iOS 11.3.

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Introducing the Payment Request API for Apple Pay

Introducing the Payment Request API for Apple Pay

We’re pleased to announce that Safari 11.1 on macOS and Safari on iOS 11.3 now support the W3C Payment Request API for conducting Apple Pay transactions on the web.

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Clipboard API Improvements

Clipboard API Improvements

The Clipboard API provides a mechanism for websites to support accessing the system pasteboard (pasteboard is the macOS and iOS counterpart to clipboard on Windows and Linux).

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Protecting Against HSTS Abuse

Protecting Against HSTS Abuse

HTTP Strict Transport Security (HSTS) is a security standard that provides a mechanism for web sites to declare themselves accessible only via secure connections, and to tell web browsers where to go to get that secure version.

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