Dimensions – Measure Everything You See in the Browser
Dimensions is a browser extension for coders to measure screen dimensions. Currently only available for Chrome. You can measure between the following elements: images, input-fields, buttons, videos, gifs, text, icons. For the best experience set a keyboard shortcut in the chrome setting at the end of the extensions list to quickly enable and disable Dimensions.
Your designer handed you mockups as PNGs or JPEGs? Just drop them into Chrome, activate Dimensions and start measuring. Best of all, Dimensions is Open Source and hosted on Github.
License: MIT License