User CSS

User CSS

A quick and easy way to add custom CSS to the current web site.

What is User CSS?
'User CSS' is a handy Chrome extension that opens up the possibility of customized styling of websites. It instantly applies user-written CSS code on the current webpage, delivering immediate visual results. Through a single extension button, users can toggle visibility of the CSS editor. This extension also features a green indicator, signaling when custom CSS has been applied to a webpage, and incorporates CodeMirror for code highlighting and the Emmet toolkit for speedier HTML & CSS coding.
Stats
Users: 60,000+
Version: 2.2 (Last updated: 2017-10-24)
Creation date: 2017-10-22
Risk impact: High risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 2
Permissions:
  • tabs
  • http://*/*
  • https://*/*
Size: 305.15K
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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Summary

Insert your custom CSS code to the current web site and you will see the changes immediately.

How to use:

  1. Press the extension button to display the CSS editor.
  2. Write your custom CSS.
  3. Enjoy the result.
  4. Press the extension button to hide the CSS editor.

Button shows a green indicator, when current web site has custom CSS.

The extension uses CodeMirror to highlight code and supports the Emmet toolkit.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Easy to use
  • Works well for most users
  • Allows live CSS editing
Cons
  • Dependency on jQuery
  • Inconsistent performance
  • Not working for some users
Most mentioned
  • Doesn't work
  • Uncaught ReferenceError: jQuery is not defined
  • Not working in latest Chrome version
Recent reviews
Отлично работает! Благодарю.
by SL SL, 2024-03-26

Bardzo fajnie działa, można wpisać CSS dla strony razem z podstronami, można wpisać na żywo, nie trzeba ładować pliku, bardzo szybko zmieniłem tekst rozlany na całą przeglądarkę w coś co się da czytać, ma ~15 słów w linijce, większe odstępy między liniami etc.
by Maciej Ciemborowicz Maciej Ciemborowicz, 2024-03-16

I don't konw what happened to stylish but it wouldn't let me create a style sheet without uploading it to their website and I noped the heck out of there. This is easy, simple, and has worked like a charm for everything I throw at it. If I want every youtube progress bar to be nekocats then I'll turn to stylish.
by Changa Damany Imara Changa Damany Imara, 2024-03-16
View all user reviews
Safety
Risk impact

User CSS is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this extension. Review carefully before installing. We recommend that you only install User CSS if you trust the publisher.

Risk likelihood

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

Upgrade to see risk analysis details
Screenshots
Promo images
User CSS small promo image
Small promo image
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