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.

Polishing your typography with line height units

Polishing your typography with line height units

Learn how to use line-height units when setting paragraph margins — creating vertical rhythm in your text.

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The CSS shape() function

The CSS shape() function

Shapes are an important aspect of graphic design.

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Better typography with text-wrap pretty

Better typography with text-wrap pretty

Support for text-wrap: pretty just shipped in Safari Technology Preview, bringing an unprecedented level of polish to typography on the web.

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WebKit Features in Safari 18.4

WebKit Features in Safari 18.4

Safari 18.4 is here!

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Item Flow, Part 1:
A new unified concept for layout

Item Flow, Part 1:
A new unified concept for layout

CSS Grid and Flexbox brought incredible layout tools to the web, but they don’t yet do everything a designer might want.

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