User JavaScript and CSS

User JavaScript and CSS on any website

What is User JavaScript and CSS?

User JavaScript and CSS is a Chrome extension that allows users to inject their own JavaScript and CSS rules to any website. It features instant execution, custom libs include, and URL masking for use on multiple pages. With User JavaScript and CSS, users can customize their browsing experience by applying custom scripts and styles to websites.

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Extension stats

By: tenRabbits

View on Chrome Web Store

Users: 100,000+

Rating: 4.78 (556) ▲ 1 new ratings

Version: 3.0.6 (Last updated: 2024-07-01)

Creation date: 2020-05-08

Risk impact: High risk impact

Risk likelihood: Very low risk likelihood

Manifest version: 3

Permissions:

storage
tabs
unlimitedStorage
userScripts
scripting

Host permissions:

http://*/
https://*/

Size: 1.70M

Email: sq*****@yandex.ru

Ranking

# 2051 ▼ 19

Other rankings

#31 in Developer Tools

#1 in javascript keyword 44

#7 in css editor keyword 31

#9 in jquery keyword 16 ▼ 1

#28 in inject keyword 8 ▼ 1

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Other platforms

Not available on Firefox

Not available on Edge

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Extension summary

Analyze keywords

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: https://tenrabbits.github.io/user-js-css-docs/

Change log: Version 3.0.6 beta

try catch wrapper removed
CSS injection improved
added button to save converted URL

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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

Allows quick toggling of rules
Lightweight and simple UI
Automatically injects JS and CSS
High usability and frequent improvements

Cons

Sometimes caches old code
Issues with updates affecting functionality
Lack of pop-up real-time editor
No option to disable code-completion

Most mentioned

Not working after updates
Cache issues with old code
Request for improved editor features

Recent reviews

Que trabalho fantástico! Eu estava com o problema do tema escuro do Microsoft Teams e Microsoft Outlook não destacar bem e-mails e conversas não lidas. Com isso consegui customizar e deixar perfeito!