Download on the Mac App Store for $1.99

ResolutionTab

Fast switching between standard and ultrahigh-resolution display modes.

Toggle between
Retina & non-Retina
display modes

Built for Designers and Developers

Testing graphics on a Retina display can be time consuming, but it does not have to be. ResolutionTab takes the hassle out of constantly going back in
to System Preferences and switching between different Display modes.

Note:

In order to use ResolutionTab, you need to have enabled virtual HiDPI display modes.

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How to enable HiDPI display modes in OS X

  1. 15" MacBook Pro Retina is compatible with HiDPI modes by default, so ResolutionTab will work out of the box.

  2. 11" MacBook Air is not compatible with HiDPI. The screen is too small, so resolution would drop below the minimum required by OS X.

  3. In all other cases, you have to enable virtual HiDPI modes manually.

Here is how to do this with Administrative privileges:

  1. Launch Terminal app located in your /Applications/Utitlities folder.

  2. Copy and paste the following command:

    sudo defaults write /Library/Preferences/com.apple.windowserver DisplayResolutionEnabled -bool YES

  3. You may be prompted for the password.

  4. Log out and log in again.

Done. HiDPI is activated and ResolutionTab will work properly.