Custom Style Script
Developer Tools
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
Users
10K
Rating
4.2
Reviews
42
7D Growth
0|0%
Stable signalUnknownMedium-risk permissions
Custom CSS by Denis
Minimal and secure way to add custom CSS per-domain
Users20KCurrent public install base
Rating4.5Store average score
Reviews79Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
2 assetsCustom CSS by Denis Media preview
Trend
User growth trend
Review user movement across collected snapshots.
User Growth Over Time
Rating trend
7-day rating trend
View collected rating snapshots from the latest 7-day window to assess rating stability.
7-day rating change
Start
4.54
Latest
4.54
7-day rating change
0.00
2026年7月15日2026年7月21日
Growth overview
Daily, weekly, and monthly growth
Compare 1-day, 7-day, and 30-day net growth and growth rate.
1-day growthFlat
00%7-day growthFlat
00%30-day growthFlat
00%Technical snapshot
Version, languages, and crawl freshness
Review publication date, version, supported languages, and crawl timestamps.
Version1.4.0
ManifestV3
Size159KiB
Languages2English / 한국어
Published
Store updated
Last crawled
English한국어
Overview
Product summary
Review the store description, core capabilities, and common use cases.
Add custom CSS styles on websites. Allows to select elements based on text contents.
The extension does not require permissions to access all data on all websites all the time. Once you start editing CSS on a page, you get a permission prompt specific to that domain. Later, if the CSS for a domain is not used, the permission will be dropped.
There is no UI clutter of any kind. The entire extension consists of a big editable area for CSS code for the current domain.
Reviews
Recent review snapshot
Inspect the latest comments and rating distribution.
Store average score4.5Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.4Average computed only from synced review bodies below
Reviews with text64Synced review bodies
Total ratings / reviews79Chrome Web Store public rating/review count
Store average score: 4.5. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
Related products
Similar and related extensions
Review related products from the Chrome Web Store detail page.
CSS Override Extension
Developer Tools
Override web page CSS with custom styles.
Users
954
Rating
1.6
Reviews
5
7D Growth
+12|1.27%
Live CSS Tester
Developer Tools
Easily inject CSS into a webpage for testing
Users
2K
Rating
3.9
Reviews
7
7D Growth
0|0%
Amino: Live CSS Editor
Developer Tools
Customize any website with your own CSS and see your changes instantly with Amino!
Users
20K
Rating
4.3
Reviews
461
7D Growth
0|0%
Website Customizer: Add Custom Style and CSS
Tools
This Chrome extension is designed to modify the visual presentation of websites by adding custom CSS.
Users
713
Rating
5.0
Reviews
2
7D Growth
+23|3.33%
User JavaScript and CSS
Developer Tools
User JavaScript and CSS on any website
Users
200K
Rating
4.8
Reviews
657
7D Growth
0|0%
Effective, safe, minimalisic and open-source. Simply great!
This extension is greatly under-rated. Easy to use and works great.
Useful, quick, and simple. Is there a way to backup your custom CSS?
Thank you Denis, I really appreciate the minimalism of this extension. Great work!