Dimensions

Name: Dimensions
Rating: 4.5294 (17 reviews)
Author: Felix Niklas

A tool for designers to measure screen dimensions

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Dimensions is a powerful Chrome extension tailored for designers needing precise measurements of screen elements. It measures distances from your mouse pointer up, down, left, and right until it reaches an element border, making it perfect for analyzing spaces between images, buttons, text, icons, and more directly within your browser.

Designed to simplify design workflows, Dimensions supports measuring elements on mockups in PNG or JPEG format by simply opening them in Chrome and activating the extension. Features like area boundary measurements, including radius calculations for circles, and a convenient ALT + D keyboard shortcut enhance productivity. As an open-source tool hosted on GitHub, designers and developers can contribute or customize it further to suit their needs.

Design Developer Tools Productivity

By:

Daily users:

Rating:

Version:

2.1.1resigned1 Last updated: 2024-04-25

Version code:

5727427

Creation date:

2016-12-21

Risk:

Permissions:

activeTab
<all_urls>

Size:

23.95K

Full description:

See detailed description ⏷

Source:

Firefox Browser Add-ons

Updated:

a day ago

Ranking

# 2,585 ▼ 12

Other rankings

#297 in Web Development ▼ 1

#51 in tons keyword 40

#163 in menu keyword 34

#193 in gif keyword 31 ▲ 1

#212 in input keyword 36 ▼ 2

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Other platforms

Dimensions (v2.0.5)

100,000+ 4.14

(459)

User reviews

Users praise Dimensions as a simple and useful tool for measuring elements on web pages, valuable especially for web designers requiring precise pixel measurements. It works well in some Firefox versions and has an attractive interface. However, multiple reviews report issues with hotkey functionality, inability to disable with Esc key, occasional complete loss of functionality in certain Firefox versions, and concerns over extensive permissions. Additionally, users wish there were an option to copy measurements directly from elements. Overall, the extension is appreciated but has key functional and privacy concerns.

Pros

Simple and useful for measuring elements on web pages.
Helpful for web design and getting exact pixel measurements.
Works well with certain Firefox versions (e.g., Firefox 80).
Attractive and good for front-end web development.

Cons

Hotkeys including default and configured ones do not work properly.
Turning off the extension with the Esc key does not function.
Extension becomes non-functional or inactive in some Firefox versions (e.g., Firefox 69).
Permission request to access data from all websites raises privacy concerns.
Lacks functionality to copy measurements directly after clicking elements.

Recent reviews

by Firefox user 18876440, 2025-03-10

Thank so much!

by Firefox user 17950155, 2024-07-03

View all user reviews ›

Extension safety

Risk impact

Dimensions 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.

Risk likelihood

Dimensions is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

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