JavaScript Injector

Inject javascript in a given website.

JavaScript Injector - Dynamic JS Code Injection Chrome Extension

The 'JavaScript Injector' is a specialized Chrome extension designed for dynamically injecting JavaScript into a selected webpage. It allows users to extend the functionality of a specific webpage seamlessly. Key features include the ability to add URLs with/without regular expressions, maintain a list of URLs, inline edit your JS codes, turn the JS code execution on/off as needed, and a searching feature to find your specific URLs easily. Ideal for those who regularly work with webpage customization and scripting.
Install from Chrome Web Store

Extension stats

Manifest V2
By: luisnaia
Users: 4,000+
Rating: 2.91
(33)
Version: 1.0.4 (Last updated: 2014-08-21)
Creation date: 2014-08-21
Permissions:
  • tabs
  • http://*/*
  • https://*/*
  • activeTab
  • storage
  • webNavigation
Size: 406.53K
Full description: See detailed description

Other platforms

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

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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 for running custom JavaScript.
  • Effective in blocking ads on websites.
  • Works well with specific URL formats.
  • Simple JavaScript injection process.
  • Higher performance compared to other similar extensions.
Cons
  • Some users report it simply does not work.
  • Content scripts do not load properly for some developers.
  • Importing JavaScript files can be cumbersome without easing options.
  • Lack of syntax highlighting makes reading code difficult.
Most mentioned
  • Works well with custom JavaScript.
  • Ad blocking capabilities.
  • User-friendly for those who read the help section.
  • Issues with functionality for some users.
  • Desire for improved features like file import and syntax highlighting.
User reviews
Simply amazing, the bad reviews seem by people that do not know how to use the plugin and/or read the help section :P
by killerbaru478 !, 2022-07-19

Всё заработало. Расширение - пушка! Без проблем вырезал надоедливую рекламу с сайта. Если хотите запускать скрипт на всём сайте, то используйте ссылку формата https://example.com/*

Not sure why it got poor reviews before, it's a very handy url filtered javascript injector that works just fine, better than most of the others as they run on all pages
by Mark Buck, 2020-07-28
View all user reviews

Extension safety

Risk impact

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

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of JavaScript Injector. Use it at your own risk.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** *** **** *******
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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Promo images

JavaScript Injector small promo image
Small promo image

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