CSS Used

Name: CSS Used
Rating: 4.484210526315789 (190 reviews)
Author: https://bobscript.com

Get all css rules used by the selected DOM and its descendants.

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CSS Used is a powerful Chrome extension designed to extract all CSS rules applied to a selected DOM element and its descendants with just one click. The tool has been recently updated to Manifest V3 and now reads resources from local caches, enhancing speed and resolving cross-origin issues. It features optimized style parsing and a modern interface powered by Svelte, offering a seamless user experience.

While it supports most CSS rules, CSS Used currently does not handle custom properties (CSS variables) or style inheritance features. Known limitations include handling complex CSS selectors where the rule does not directly apply to the selected element. Despite these, CSS Used remains an essential tool for developers needing quick insights into applied CSS on webpage elements.

Extension Developer Tools Productivity

By:

https://bobscript.com

Users:

60,000

Rating:

4.48

(190)

Version:

3.0.0 Last updated: 2023-01-17

Creation date:

2019-06-23

Risk:

Permissions:

tabs

Size:

164.00KB

Email:

pe*****@139.com

URLs:

Website

Full description:

Source:

Chrome Web Store

Data ingested on:

2025-07-12

Ranking

# 2,895 ▲ 7

Other rankings

#623 in Developer Tools ▼ 2

#21 in rule keyword 9

#45 in style keyword 30

#123 in element keyword 24 ▼ 5

#215 in website usage keyword 63 ▼ 10

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User reviews

CSS Used is praised for effectively extracting and optimizing CSS, saving users time and effort. Many reviewers find it simple to use and rely on it regularly, calling it a lifesaver and highly recommending it. However, significant issues include lack of support in Chrome's incognito mode, functionality problems with recent Chrome versions, and some users reporting it does not work at all, impacting overall reliability.

Pros

Effectively extracts used CSS, helping optimize and clean stylesheets.
Easy, fast, and simple to use with reliable performance for many users.
Highly praised and recommended by users who've relied on it for years.
Saves time and effort, considered a lifesaver by multiple users.
Works well on browsers like Brave and performs as expected according to positive feedback.

Cons

Does not work in Chrome's incognito mode or anonymous tabs despite permissions.
Compatibility issues with certain Chrome versions, with the extension not functioning or tabs not appearing.
Completely non-functional for some users, rendering it useless in their environment.

Recent reviews

This tool is very useful to optimize my own css if after a period i have made a lot of modifications but was not tracking all the html elements i removed.

An*****, 2025-06-30

this is a very best tool ever i searched many tools but this one is best it extract the used css perfectly

As*****, 2025-06-25

Doesn't work in Chrome (would've given 5 stars if it did), but it's working in Brave and does a very good job!

Dr*****, 2025-04-25

View all user reviews ›

Extension safety

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.

CSS Used requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. 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 Chrome extension.

CSS Used has earned a good reputation and can be trusted.

Risk likelihood analysis details

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