Awesome!

Perfect. At last. Simple, streight forward tool. Click, drag, release - get your dimentions copied to clipboard. Just what I was looking for. Even works on retinan. And a bonus - with dark menu bar the menu bar icon is white. (seem to be a big problem for many spare-bedroom-developerz)

MacBook Pro Retina. OSX Sierra 10.12 (16A323)

Chatlanian about Euclid, v1.3