User CSS

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

User CSS - Chrome Extension for Custom Styling of Websites

'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.
Install from Chrome Web Store

Extension stats

Users: 60,000+
Rating: 3.59
(264)
Version: 2.2 (Last updated: 2017-10-24)
Creation date: 2017-10-22
Risk impact: High risk impact
Risk likelihood:
Manifest version: 2
Permissions:
  • tabs
  • http://*/*
  • https://*/*
Size: 305.15K
URLs: Website

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge
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Extension 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

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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 making simple CSS tweaks.
  • Can be used on multiple browsers, including Brave and Yandex.
Cons
  • No longer available/support or updates.
  • Requires jQuery, which is not universally supported on all websites.
  • Lacks an element selector and customization options.
  • Does not override website's CSS consistently.
Most mentioned
  • Consider switching to SuperDev Pro.
  • Issues with jQuery dependency.
  • General functionality for CSS modifications.
User reviews
Great
by Đạt Lê, 2024-10-10

I'm making a few tweaks to my Discord experience, and this helps!
by xXJOÃOZINXx, 2024-09-09

When I click on it, it doesn't open. I couldn't find a screen where I can select a website and enter the css codes. You could at least explain it with photos on your page.
by Eray Ekti, 2024-09-04
View all user reviews

Extension safety

Risk impact

User CSS requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

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

Upgrade to see risk analysis details

Promo images

User CSS small promo image
Small promo image

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