Unused CSS/JS Detector icon

Unused CSS/JS Detector

by RKWO Ltd · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Detects unused CSS and JS files on web pages

Users
334
+13 in 30 days
Rating
3.5 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#51K
#43K among extensions
Version
1.0
updated 20 Mar 2025

Users

monthly, 2 years
0326652Mar 2025Jan 2026Oct 2026
Latest, 15 Oct 2026: 334 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
012Mar 2025Jan 2026Oct 2026
Latest, 15 Oct 2026: 2 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 Unused CSS/JS Detector

Unused CSS/JS Detector Optimize Your Web Development Workflow with Precision Enhance your web development efficiency with the Unused CSS/JS Detector, a powerful Chrome extension designed for developers and web optimization enthusiasts. This tool helps you identify and manage unused CSS and JavaScript files on any webpage, streamlining your optimization process and improving page load performance. Key Features: 1. Detect Unused Resources: Automatically scans the current page to pinpoint unused CSS stylesheets and JavaScript files, saving you valuable time during audits. 2/ Block/Unblock Functionality: Easily block detected unused resources with a single click and unblock them when needed, with changes persisting across sessions. 3. Real-Time Load Time Tracking: Monitor page load times with precision (down to 0.000ms) and see performance improvements as you block resources. 4. Reset Option: Quickly reset all blocked resources with the "Reset Blocks" button to revert to the original state. 5. User-Friendly Interface: Features a clean popup with clickable links to resource URLs, truncated for readability with full URLs available on hover. How It Works: 1. Click the extension icon to open the detector. 2. Analyze the page to see a list of potentially unused CSS and JS files. 3. Use the "Block" button to prevent resources from loading, and watch the load time update after a page refresh. 4. Unblock or reset as needed to fine-tune your optimization. Perfect For: - Web developers optimizing site performance - Front-end engineers auditing codebases - SEO specialists improving page speed - Anyone looking to reduce bloat in web projects Installation: Simply add the Unused CSS/JS Detector to your Chrome browser, and start optimizing your web pages today! Optimize smarter, not harder. Download the Unused CSS/JS Detector now and take control of your web resources!

Growth

WindowUsersChangeRatingsRating
7 days+9+2.8%00.00
30 days+13+4.0%00.00
6 months+52+18.4%00.00
1 year+133+66.2%+1−1.50

Chrome Web Store search rankings

Where Unused CSS/JS Detector appears when people search the store, with the 30 day change
Search phrasePosition30 days
javascript#80−1

Version history

1 versions recorded
1.020 Mar 2025

Details

Category
Developer Tools
First seen
20 Mar 2025
Size
21 KB
Languages
en-US
Pricing
Free
Privacy policy
wpza.net
Extension ID
peppnccmofkblbmghhfgdaaohemoaeog

Permissions and risk

Low riskimpact 2, likelihood 1
Permissions
activeTabstoragedeclarativeNetRequestdeclarativeNetRequestFeedback
Site access
<all_urls>
Can read and change data on every website you visit.

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