Dimensions

by Felix Niklas · felixniklas.com · Developer Tools

FeaturedEstablished publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

A tool for designers to measure screen dimensions

Users

100K

0 in 30 days

Rating

4.0 / 5

−0.18 in 30 days

Ratings

462

+1 in 30 days

Store rank

#1,749

#1,530 among extensions

Version

3.0.1

updated 7 Oct 2025

Users

monthly, 3 years

Latest, 15 Oct 2026: 100,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 15 Oct 2026: 462 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Dimensions

This extension measures the dimensions from your mouse pointer up/down and left/right until it hits a border. So if you want to measure distances between elements on a website this is perfect. It doesn't really work with images because there the colors change a lot pixel to pixel. # Images & HTML Elements Measure between the following elements: images, input-fields, buttons, videos, gifs, text, icons. You can measure everything you see in the browser. # Mockups Your designer handed you mockups as PNGs or JPEGs? Just drop them into Chrome, activate Dimensions and start measuring. # Keyboard Shortcut You can start and stop dimensions with the ALT + D shortcut. # Area Boundaries Wanna get the radius of a circle? Is text standing in your way? Press Alt to measure the dimensions of a connected area. # Open Source Dimensions is Open Source and hosted on Github. Want to port it to Firefox? Go ahead and fork it. Pull requests are welcome! https://github.com/mrflix/dimensions