WebKit Open Source Web Browser Engine

WebKit for Web Developers

WebKit is the web browser engine used by Safari, App Store, and many other OS X, iOS, and Linux applications. Web developers can stay updated on feature support, follow development on the blog, try out the latest features by downloading a nightly build and report bugs.

Contributing to WebKit

You can provide bug reductions or contribute code. Get started contributing code by installing developer tools and checking out and building the source code. Learn more about the project and our performance goals.

WebKit Open Source Web Browser Engine

WebKit for Web Developers

WebKit is the web browser engine used by Safari, App Store, and many other OS X, iOS, and Linux applications. Web developers can stay updated on feature support, follow development on the blog, try out the latest features by downloading a nightly build and report bugs.

Contributing to WebKit

You can provide bug reductions or contribute code. Get started contributing code by installing developer tools and checking out and building the source code. Learn more about the project and our performance goals.
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CSS Font Features

Font features are a way to enable advanced text styles and effects as designed by the font author.

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10 Years of Web Inspector

Ten years ago today we introduced the first version of Web Inspector to the world — to commemorate the date, we put together a timeline of major events and blog posts for posterity.

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More Responsive Tapping on iOS

WebKit on iOS has a 350 millisecond delay before single taps activate links or buttons.

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Breakpoint Options

Get more from the Debugger tab in Web Inspector: customizing breakpoints with conditions and actions for logging and executing scripts, and creating probe expressions.

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Targeting Domains with Content Blockers

Content Blockers extensions are enjoying a tremendous success on iOS and Mac — especially domain-based blockers.

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Introducing Slot-Based Shadow DOM API

We’re pleased to announce that basic support for the new slot-based shadow DOM API is now available in the nightly builds.

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ECMAScript 6 in WebKit

In Safari 9 for OS X and iOS 9 you’ll be able to use some great ES6 features — there are even more you can try out if you run the nightly build.

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