The Reading Ruler

by https://webdevliam.uk · webdevliam.uk · Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 18 Oct 2026

A ruler that overlays a webpage to help you read & retain information. Helpful for people who are neurodivergent.

Users

150

−5 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#72K

#60K among extensions

Version

2.1.0

updated 23 Dec 2025

Users

monthly, 3 years

Latest, 18 Oct 2026: 150 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 18 Oct 2026: 5 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 The Reading Ruler

A common technique recommended for people who struggle to read and retain the information as they read is to use a ruler to read every line. This add-on creates a line across the webpage that follows the cursor and darkens the lower half to recreate this technique.