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 signalNo paid features detectedMedium-risk permissions
User JavaScript and CSS
User JavaScript and CSS on any website
Users200KCurrent public install base
Rating4.8Store average score
Reviews657Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
4 assetsUser JavaScript and CSS Media preview
Trend
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User Growth Over Time
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7-day rating change
Start
4.75
Latest
4.75
7-day rating change
0.00
2026年7月15日2026年7月21日
Growth overview
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1-day growthFlat
00%7-day growthFlat
00%30-day growthFlat
00%Technical snapshot
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Version3.1.2
ManifestV3
Size1.72MiB
Languages2English / русский
Published
Store updated
Last crawled
Englishрусский
Overview
Product summary
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Userscript's and userstyle's — simple extension to inject own JavaScript or CSS rules to any page.
Features:
- Instant execution
- Custom libs include
- URL masking allows use one script or CSS on many pages
Documentation:
Reviews
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Store average score4.8Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.7Average computed only from synced review bodies below
Reviews with text472Synced review bodies
Total ratings / reviews657Chrome Web Store public rating/review count
Store average score: 4.8. 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.
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I would love if instead of CSS you would have SASS.
The "Cloud Storage" feature is awesome. It saved me after I had to remove and re-installed my chrome. I wonder why is not in the feature list.
Improvement idea: - Create an "awesome User Javascript and CSS" repo so everyone could share their scripts! - Sync with my Google Account Competitive edge - completely replaced Tampermonkey and it's super easy to setup. - I can ideally replace all extensions with this, by writing my own scripts - Kiwi Browser (Android) + This extensions = Super duper killer browser that does whatever automations and customization I want
알잘딱 ㅅㅌㅊ
По моему мнению - лучшее расширение для моих задач, благодарю от всей души Автора!
Great extension, but: One problem for people having difficulty to differentiate close colors. the options: - Isolated environment - All frames - Run at the start have a color spot which appears to be either ... light green or darker green or maybe gray?? Very hard to make a difference from what is supposed to be ON or OFF.
Absolutely the best under all custom CSS and JS extensions.
This is the best extension I've ever used. I've been using it for several years, and it's absolutely fantastic.
This extension is very useful for me. Previously, I had to manually edit some CSS code to change the appearance of the book reader, but now I can automatically add CSS code to maintain a neat and simple layout.
beğendim kullanıyorum. basit ve sadece işini yapıyor, reklam yok, saçma sapan şeyler yok. yapan kimse tebrikler.