When I have a window for an application open I would like its size, height and width. Is it 900 * 625, 716 * 456 or what?

The reason I need to know is just for some usability testing.

Any tips how I get this info?

  • 1
    In what format do you need it ?, from GUI or from terminal?
    – Ruskes
    Jul 25 '13 at 11:22

If you want it in a UI use Accessibility Inspector. It's in Xcode > Open Developer Tool > Accessibility Inspector (It requires to install Xcode).


You could also run something like these scripts in AppleScript Editor:

tell application "System Events" to tell process "iTunes"
     size of window 1
end tell
tell application "iTunes" to set b to bounds of window 1
{(item 3 of b) - (item 1 of b), (item 4 of b) - (item 2 of b)}

I use xScope for my usability and design needs. It's a paid product, and it does much, much more than simply measuring windows. However, the tools for adding rulers to the screen and measuring windows are highly evolved and packed with many features if you do this measurement regularly.

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