Safari Technology Preview
Safari Technology Preview is a macOS web browser for trying upcoming Safari and WebKit features while testing websites with Apple’s latest developer tools.
What is Safari Technology Preview?
Safari Technology Preview is a macOS web browser designed for people who want early access to upcoming Safari and WebKit changes. It helps web developers, designers, testers, and curious users preview how websites and web apps behave before those changes reach the standard Safari release. The app includes the latest WebKit engine updates along with developer-focused tools such as Web Inspector and Responsive Design Mode for debugging, inspecting layout, and testing across device views. It runs side by side with the regular Safari browser, which makes it useful for comparing behavior without replacing your usual setup. Safari Technology Preview also supports common browsing features such as bookmarks, Reading List, and iCloud integration, so it can fit into everyday testing workflows as well as normal browsing sessions. Apple updates it frequently, making it a practical tool for testing modern HTML, CSS, JavaScript, extensions, and other evolving web platform features on Mac.
Key features
- Preview upcoming Safari and WebKit web technologies before they reach the standard browser release
- Inspect and debug pages with Web Inspector tools
- Test site layouts in Responsive Design Mode
- Run alongside the regular Safari app for comparison testing
- Try newer support for HTML, CSS, JavaScript, Web Extensions, and related web platform features
- Use familiar browsing features such as bookmarks and Reading List
- Sync supported browsing data through iCloud
- Send feedback about browser behavior and web technology changes to Apple
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Safety overview
Status: Safe
Safari Technology Preview is legitimate Apple browser software for macOS. It accesses web content, downloads, cookies, bookmarks, and other browser data in the normal course of browsing, so the main privacy and security considerations are the same ones that apply to any web browser. Because it is a preview build, websites or extensions may behave differently than they do in the standard Safari release, and some features may change more often. Use it for testing or early access, and keep the regular Safari app available for everyday tasks that need maximum stability.
Recommendation: Keep Safari Technology Preview if you test websites, build web apps, use Safari extensions, or want early access to upcoming browser features. If you never use it, you can remove it without affecting the standard Safari app, though you will lose this separate preview environment and its saved browsing data.
Common paths
/Applications/Safari Technology Preview.app
Cache paths
~/Library/Caches/com.apple.SafariTechnologyPreview
Preference paths
~/Library/Preferences/com.apple.SafariTechnologyPreview.plist
Container paths
~/Library/Containers/com.apple.SafariTechnologyPreview
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