InjectJS – JavaScript Injector & Custom Script Manager

injectjs.net

4.3(

11 ratings

)

Extension Developer Tools952 users

Item media 2 (screenshot) for InjectJS – JavaScript Injector & Custom Script Manager

Item media 3 (screenshot) for InjectJS – JavaScript Injector & Custom Script Manager

Item media 1 (screenshot) for InjectJS – JavaScript Injector & Custom Script Manager

Overview

Inject custom JavaScript (JS) into any webpage, automate tasks, and manage scripts. Ideal for developers and power users.

Inject JS lets you effortlessly inject custom JavaScript (JS) scripts into any webpage. Automate tasks, enhance websites, and instantly modify page behaviors. New Update: * Import/Export Scripts * Expanded Script File Size Limit Key Features: * Inject JavaScript instantly into any website. * Custom Script Management: Create, edit, enable, disable, or delete scripts. * URL & Pattern Matching: Precisely control where scripts run using URL or regex. * Right-Click Context Menu: Quickly execute scripts manually on any webpage. * Mini Dashboard: Access scripts directly by clicking the extension's icon. * Code Auto-Formatting: Built-in editor ensures clean and error-free JS code. * Fully Local & Secure: Scripts remain securely stored on your device. * Manifest V3 Compliant: Meets Chrome’s latest performance and security standards. How to Use Inject JS: 1. Open Inject JS to create a new script. 2. Paste or write your JavaScript code and set URL patterns. 3. Enable scripts to auto-run, or trigger manually via right-click context menu or the mini dashboard (extension icon). Inject JS is perfect for developers, QA testers, automation enthusiasts, and power users who want easy control of JavaScript injection. Install Inject JS today to transform and personalize your browsing experience!

4.3 out of 5
11 ratings
Learn more about results and reviews.

Details

Version
4.1.0
Updated
January 19, 2026
Flag concern
Size
50.17KiB
Languages
English
Developer
Website
Email
dcohen613@gmail.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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