Baseliner

Name: Baseliner
Rating: 4.34 (47 reviews)
Author: J. Pedro Ribeiro

Baseliner adds horizontal & vertical lines to help you align your grid to any website.

As of June 2026, Baseliner has 5,000 users and a 4.34/5 rating from 47 reviews in the Developer Tools category.

J. Pedro Ribeiro Developer Tools★ Featured

Chrome Web Store ↗.crx

Users0%

5.0K

5,000

Rating0%

4.34

47 reviews

Reviews0%

Version

7.2

Manifest V3

History

1 snapshots

Tracking since May 3, 2026.

View as table

Date	Users	Rating	Reviews	Version
May 3, 2026	5.0K	4.34	47	7.2
Now	5.0K	4.34	47	7.2

Permissions & access

Permissions: activeTabstoragescripting
Host access: None declared

Screenshots

About

Adds a horizontal and/or vertical lines on top of any website.

The Baseliner extension adds a fully customisable CSS layer on top of any website to help you align your design and ensure the grid is in place.
--------------------

The best place for support is not in the reviews section below, but on the Baseliner GitHub repo:

https://github.com/jpedroribeiro/Baseliner/issues

Check out full set of features and how to contribute on our GitHub page:

https://github.com/jpedroribeiro/Baseliner