SpacingJS - Updated Fork

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Precision spacing measurement tool for web developers and designers. Hold Alt/Option key and hover over elements to measure.

Users

109

+3 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#82K

#68K among extensions

Version

1.1.0

updated 25 Jun 2025

Users

monthly, 17 months

Latest, 16 Oct 2026: 109 usersMove the mouse over the chart for any month

Ratings count

monthly, 17 months

Latest, 16 Oct 2026: 1 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 SpacingJS - Updated Fork

** This is an updated fork of SpacingJS ** Measure the spacing between elements on webpage. Hold down Alt (Windows) / Option (Mac) key, and move the cursor. Measure the spacing between elements on webpage. How to use: 1. Move the mouse cursor to one element and hold down Alt (Windows) / Option (Mac) key. 2. Move the mouse cursor to another element.