Grids & Rulers

Name: Grids & Rulers
Rating: 3.95 (20 reviews)
Author: Jeremie Patonnier

By: Jeremie Patonnier

Create rulers and grids overlays to help develop your web applications

Download

Install

Features & Capabilities

Grids & Rulers is a powerful Chrome extension designed to assist web developers in creating precise and visually consistent layouts. By adding a dedicated panel to the developer tools, it allows users to generate and manage customizable grid and ruler overlays directly on web pages. These overlays serve as visual guides, enhancing the design and development workflow by ensuring alignment and structure in web applications. Whether designing complex UI layouts or aligning elements perfectly, Grids & Rulers simplifies the process with an intuitive interface and real-time feedback.

This extension is ideal for front-end developers and designers seeking an efficient way to incorporate grids and rulers without leaving the browser environment. It seamlessly integrates into the Chrome developer tools, making layout adjustments straightforward and enhancing productivity during the development process.

User Growth & Download Statistics

Add-on Developer Tools Design

By:

Daily users:

Rating:

Version:

2.0 Last updated: 2020-05-11

Version code:

5022886

Creation date:

2018-10-18

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

36.69KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-20

Compare stats and ranking:

Ranking

# 2,966 ▲ 9

Other rankings

#328 in Web Development

#7 in grid keyword 23

#12 in rule keyword 8

#58 in overlay keyword 25 ▲ 2

#65 in development keyword 14

Upgrade to see more rankings

Other platforms

Grids & Rulers (v2.0)

1,000 5.00

(4)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Jeremie Patonnier

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/grids-rulers/

Website:

https://github.com/JeremiePat/grids-and-rulers

User Reviews

Users find 'Grids & Rulers' highly practical and valuable for pixel-precise web design work, especially when combined with Firefox's existing tools. However, multiple reviews note limitations including inflexible grid customization, lack of persistent settings, and missing key features like margins and fluid columns, which reduce overall usability.

Pros

Useful tool for web designers and developers aiming for pixel-perfect designs.
Practical and effective for testing and implementing grids.
Enhances layout design workflows when combined with Firefox's native ruler.
Helps in creating guides and visual markers effectively.

Cons

Lacks flexibility such as defining max-widths, auto columns, and percentage-based grids instead of pixels only.
Does not save grid settings, requiring users to recreate grids each time.
Missing features like margins/gutters for grids, which are important for realistic layouts.
Issues with duplicated lines requiring page reload to fix.

Recent reviews

Good Dev tools

by Fi*****, 2024-04-05

by Fr*****, 2023-08-25

View all user reviews ›

Is Grids & Rulers Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Grids & Rulers requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Medium ****** ** ********* ****** ********* *** **** ****** **** **** ** ******* ** ********** **** ***********

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Grids & Rulers has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******