Custom JavaScript for Websites 3

Run custom JavaScript on any website.
What is Custom JavaScript for Websites 3?
Custom JavaScript for Websites 3 is a Chrome extension that allows you to run custom JavaScript on any website. It provides a powerful tool for site debugging, information extraction, ad blocking, custom UI creation, and much more. With added features like Ace Editor and Draft auto save, it offers a seamless experience for injecting and managing custom JavaScript code.

Extension stats

Users: 948 ▲ 39
Rating: 3.67 (3)
Version: 3.4.10 (Last updated: 2022-01-17)
Creation date: 2022-01-16
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • storage
  • http://*/
  • https://*/
  • tabs
Size: 585.73K

Other platforms

Not available on Firefox
Custom JavaScript for Websites 2 (v3.4.9)
3.00 (2) 1,920+
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Extension summary

Overview Run custom JavaScript on any website. Added remote uploading.

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
See more

User reviews

Extensão mais pratica e util para mim!
by PSF SEMG, 2024-08-13

This is a bit suspicious. This is called "Custom JS for Websites 3", but it's exactly the same as "Custom Javascript for Website 2", which has more than 40000 users and originally published at https://chrome.google.com/webstore/detail/custom-javascript-for-web/ddbjnfjiigjmcpcpkmhogomapikjbjdk Also, the bugs present in v2, are still present in v3, at least in my case. Moreover in the extension description, all of the features you describe in the "New features" paragraph, were already present in version 2. I think this should be reported and I advise other users to now download this extension until further clarifications.
by A., 2023-05-19

Great! Just wish it had a few more features.. This is one of 3 extensions that will sink my data to the account, so that it's available on my other machine. I have installed and tested ALL CSS and JS editors. Thank you!! Please, consider adding these features: - Add a tab for CSS - Apply CSS immediately - Dark mode - Option to move the window around and resize it, like this extension does: https://chrome.google.com/webstore/detail/live-editor-for-css-less/ifhikkcafabcgolfjegfcgloomalapol
by Jovan Ralic, 2023-02-28
View all user reviews

Extension safety

Risk impact

Custom JavaScript for Websites 3 requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

Custom JavaScript for Websites 3 has earned a fairly good reputation and likely can be trusted.

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