CRX id
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Description from extension meta
Inject custom JavaScript (JS) into any webpage, automate tasks, and manage scripts. Ideal for developers and power users.
Image from store
Description from store
Inject JS lets you effortlessly inject custom JavaScript (JS) scripts into any webpage. Automate tasks, enhance websites, and instantly modify page behaviors.
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!
Latest reviews
- (2025-08-13) Darvin Yorder: Solid 10/10
- (2025-08-13) Jesse Gray: In deed the developers of this tool did a great job
- (2025-08-13) James Robinson: It's much faster than writing and running a full-blown automation script for every little thing. I love it!
- (2025-08-13) Evans Anthony: Solid 5 stars!
- (2025-08-13) More Dollars: The editor is simple but effective, and the URL matching options cover everything I need.
- (2025-08-13) Joshua Robby: I've tried a few extensions like this, and Inject JS is by far the most reliable. Managing scripts is a breeze. The context menu is a great idea, but sometimes it feels a little clunky when I have a lot of scripts. Maybe a search bar in the context menu? Regardless, it's still an awesome tool.
- (2025-08-12) David Cleveland: I'm a student learning web development, and this extension has been a fantastic way to experiment with JavaScript on real websites.
- (2025-08-12) ANDY MARK: Create a script, define where it runs, and you're good to go. It does exactly what it promises and does it well.
- (2025-08-12) Chrome Expert Jay: I feel like I've been waiting for an extension like this for years. It's the perfect balance of a simple tool for quick hacks and a powerful manager for complex scripts.
- (2025-07-21) Keith Becker: Honestly, this is the best extension I have seen to inject custom javascript onto pages. It loads before document_start which is hard to find in any of these other extensions, and the UI isn't cluttered with garbage. It just works, which I appreciate.