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 183

Release Notes for Safari Technology Preview 183

Safari Technology Preview Release 183 is now available for download for macOS Sonoma and macOS Ventura.

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WebKit Features in Safari 17.1

WebKit Features in Safari 17.1

Today we are pleased to share what new in WebKit for Safari 17.1.

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Simplified Responsive Design Mode

Simplified Responsive Design Mode

Responsive design is a well-established practice of creating designs that adapt to different screen sizes.

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Get ready for Interop 2024

Get ready for Interop 2024

The primary strength of the web is that it works everywhere.

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CSS Nesting and the Cascade

CSS Nesting and the Cascade

You might have noticed that Safari Technology Preview 179 includes an update to CSS Nesting that adds support for the new “relaxed parsing behavior”.

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