Custom JavaScript for Websites 2

Run custom JavaScript on any website.

▶

Custom JavaScript for Websites 2 - Enhance Your Browsing Experience

'Custom JavaScript for Websites 2' is a Chrome extension that permits users the flexibility to run their own custom JavaScript on any website. The custom scripts are stored via Chrome's Sync API and are applicable across domain URLs based on the domain or regular expression. The extension features a dedicated tab for code editing and supports built-in libraries and personal external scripts, aiding in website debugging, information extraction, ad blocking and UI customization.

Download

Extension stats

By: xcv58

Users: 50,000+

Rating: 4.39

(129)

Version: 3.4.12 (Last updated: 2023-02-20)

Creation date: 2020-04-28

Risk impact: High risk impact

Risk likelihood:

Very low risk likelihood

Manifest version: 2

Permissions:

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

Size: 602.11K

Email: ch*****@xcv58.com

Ranking

# 3,444 ▲ 56

Other rankings

#643 in Developer Tools ▲ 2

#5 in javascript keyword 44 ▼ 1

#13 in jquery keyword 16

#33 in inject keyword 8 ▲ 2

#49 in script keyword 20 ▲ 3

Upgrade to see more rankings

Other platforms

Custom Chess (v1.0.1)

3.75

(149) 23,038+

Not available on Firefox

Custom JavaScript for Websites 2 (v3.4.9)

3.00

(2) 1,988+

Want to check extension ranking and stats more quickly for other Chrome extensions? Install Chrome-Stats extension to view Chrome-Stats data as you browse the Chrome Web Store.

Extension summary

Analyze keywords

Run custom JavaScript on any website. Use this tool to inject custom JavaScript in any website.

Your scripts are kept by the Chrome sync API and applied across domain URLs. You can inject custom JavaScript based on domain or custom Regular Expression (since v3.1.1).

This extension supports dedicated tab to edit your codes since v2.5.1

You can use some built-in libraries such as

jQuery 1.12.4
jQuery 2.2.4
jQuery 3.2.1
Indefinite Observable 1.0.1
MooTools 1.6.0

or/and your own external scripts.

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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

Works as expected and injects custom JavaScript into websites easily.
Users find it indispensable and life-changing for modifying websites.
Highly rated, with multiple reviews describing it as awesome or magical.

Cons

Doesn't work on every website and encounters sandboxing issues.
Users report needing to have the developer console open for it to function.
Limited code size and issues with special characters like á.

Most mentioned

Works great
Insane/indispensable extension
Needs improvements for loading scripts automatically
Issues with special character support

User reviews

Doesn't work on every website. You'll get "Blocked script execution in 'about:blank' because the document's frame is sandboxed and the 'allow-scripts' permission is not set." on YouTube when trying to access the document.

NotAHackusator, 2024-10-31

It was one of the extensions I've been using for years. Now, Google says it will be removed soon. Very sad. I would be very happy if you decide to make the project public.

Serdar Degirmenci, 2024-10-25

10 out of 10 , simply the best ever extension i have used,

Daniel Ng'ang'a, 2024-09-15

View all user reviews

Extension safety

Risk impact

Custom JavaScript for Websites 2 requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.