Code Injector

Inject code into websites! (JavaScript, CSS, HTML and Files)

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Code Injector Chrome Extension

Code Injector is a powerful addon designed for users with basic web programming knowledge to inject custom JavaScript, CSS, HTML, and files directly into websites. This tool enables developers and enthusiasts to customize and enhance webpages on the fly, making it perfect for testing, debugging, or personalizing browsing experiences.

With straightforward functionality and comprehensive documentation available on GitHub, Code Injector ensures you can seamlessly modify web content as needed. Whether tweaking styles, adding scripts, or embedding HTML, this extension empowers users to take control over their web environment effortlessly.

By:: Saba
Users:: 8,000+
Rating:: 4.67
(15)
Version:: 0.3.2 (Last updated: 2020-01-26)
Creation date:: 2020-01-23
Risk:: High risk impact Low risk likelihood
Permissions:: <all_urls>
tabs
activeTab
storage
webNavigation
Size:: 1.92M
Full description:: See detailed description
Source:: Chrome Web Store
Updated:: 20 hours ago

Ranking

# 11,162 ▼ 142

Other rankings

#2862 in Developer Tools ▼ 4 #8 in inject keyword 8 #19 in code keyword 28

Other platforms

Code Injector (v0.3.3)

1,890+ 4.58

(72)

Code Injector (v0.3.2)

4,287+ 4.50

(8)

User reviews

Users generally praise Code Injector for being a simple, free, and effective extension for injecting code, especially on sites like Instagram that block traditional dev tool injection. It is appreciated for its usability during web development and direct HTML editing features. However, recurring issues include the lack of automatic code injection on repeat visits, missing advanced features such as naming injected code per URL, and specifying injection targets in the DOM. Requests for better privacy controls and built-in jQuery support also appear in multiple reviews.

Pros

Simple and functional code injection tool
Works well on sites where normal dev tools code injection is blocked (e.g., Instagram)
Free and easy to use
Useful for web development and quick code injections
Allows editing code directly via HTML interface

Cons

Does not automatically inject code on subsequent visits; requires manual injection every time
Lacks features like naming URLs for multiple injections
Needs options to specify where in the DOM to inject code (parent elements)
Could improve privacy settings for better user control
Some users request adding jQuery integration by default or via option

Recent reviews

Teria como fazer a questão de privacidade do Google para poder utilizar a extenção?

Sitcon Tecnologia, 2025-03-07

Perfect code injector

Arman Abl, 2024-08-06

perfect

Jakub Novák, 2024-05-27

View all user reviews

Extension safety

Risk impact

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

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

Code Injector has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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