User JavaScript and CSS

User JavaScript and CSS on any website

What is User JavaScript and CSS?

"User JavaScript and CSS" is a versatile Chrome extension that allows users to inject their own JavaScript or CSS directives into any webpage. This tool is perfect for web developers, power users, or anyone looking to personalize their web experience. With features like instant script execution, custom libraries inclusion, and URL-specific rule application, the extension makes it easy to enhance or alter the functionality and style of websites. The update log indicates ongoing improvements, including a revamped UI, support for SASS, and the integration of a Prettier formatter.

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Stats

By: tenRabbits

View on Chrome Web Store

Users: 100,000+

Rating: 4.82 (477) ▲ 2 new ratings

Version: 2.1.1 (Last updated: 2024-02-03)

Creation date: 2020-05-08

Risk impact: High risk impact

Risk likelihood: Very low risk likelihood

Manifest version: 2

Permissions:

storage
unlimitedStorage
http://*/
https://*/
tabs

Size: 1.70M

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

Stats date:

Chrome-Stats Rank

# 2007 ▼ 9

Other rankings

#29 in Developer Tools

#1 in javascript keyword 42

#7 in css editor keyword 28

#13 in jquery keyword 17 ▼ 1

#27 in bug fixes keyword 59 ▼ 3

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Other platforms

Not available on Firefox

Not available on Edge

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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

Change log:

BETA Version 2.0.0 (available to 10% of users)

90% of the code has been rewritten;
Improved UI;
Added SASS support;
Added Prettier formatter
Other minor improvements

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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

Great for web development
Ability to customize user stylesheets and code
Rapid development for testing

Cons

UI updates can be confusing
Limited customization options
Code editor can be improved

Most mentioned

Great for web development
UI updates
Ability to customize user stylesheets and code

Recent reviews

Great extension but not too much customization. Suggestion for developer: - add possibility to share your piece of code with others (ability to install my code for other users); - add possibility to create custom snippets in editor (for now autocomplete works not as well as I want), so this feature will fix it; - add One Dark Theme, idk why this theme is not added, is the most popular theme in VS Code, Jetbrains editors... - can't choose editor font family But in general it's ok, good job!

Dan Rotaru, 2024-03-22

Can you add support (checkbox or something like that) to ignore comments. I have wrote some js/css scripts, something I cannot use and I just comment them (for example I don't need for now my custom javascript on website, I'm just commenting it and that's all), but if I check on the website, I see this comment on page, can you add possibility to not js/css comments on the page (just remove them)? Thank you!

Dan Rotaru, 2024-04-18

Dan Rotaru, 2024-03-22

View all user reviews

Safety

Risk impact

User JavaScript and 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 JavaScript and CSS if you trust the publisher.