YouTube does not support 4K video playback in Safari. 4Ktube Extension shows a 4K badge in Safari toolbar if a YouTube video you watch offers quality higher than 1080p. Click the toolbar icon to open the video in Google Chrome browser and enjoy it in full 4K glory.

This way you can open any page in Chrome, not just YouTube videos.

You don’t even need a 4K TV or monitor to benefit from this app. Most modern MacBook and iMac models have native resolution higher than the maximum 1080p supported by YouTube on Safari.

How to Use:

• Download and open 4Ktube app.
• Click “Show in Safari Preferences” button.
• Enable “4Ktube” extension in Safari Extension Preferences.

Now when you watch YouTube videos in Safari the extension will let you know if there’s 4K quality available. Look out for the 4K badge in the toolbar. Click the toolbar button to watch the 4K version of the video in Chrome.

You can open any page in Chrome this way. Shift-click the toolbar icon to also close the page in Safari when you open it in Chrome. This can be set as the default behavior in the app preferences.

What’s New

Version 1.0.1

An option to automatically close current tab in Safari when it’s opened in Chrome.


Maxim Ananov
3.6 MB

macOS 10.12 or later, 64-bit processor



Age Rating
You must be at least 17 years old to download this app.
Unrestricted Web Access
© 2019 Maxim Ananov. All rights reserved.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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