Inject JavaScript

3.0(

2 ratings

)

Extension Developer Tools37 users

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Overview

Inject JavaScript Inject JavaScript adds a smart sidebar to your browser that lets you run custom JavaScript on web pages…

Inject JavaScript Inject JavaScript adds a smart sidebar to your browser that lets you run custom JavaScript on web pages instantly. Instead of opening Developer Tools, copying code, or repeating the same steps across pages, Inject JavaScript allows you to inject JavaScript with a single click. Scripts appear only when the current page matches your rules, keeping the interface clean and relevant. Why install Inject JavaScript? • Run JavaScript instantly Inject custom scripts into the current page with one click. • Context-aware actions Scripts only appear on pages where they apply, based on URL and page content. • No DevTools required Faster and more convenient than pasting code into the console. • Flexible and customizable Control when scripts appear and what they run. • Local and private All scripts run locally in your browser. No accounts. No tracking. Inject JavaScript is ideal for developers, testers, learners, and power users who want more control over how web pages behave — quickly, safely, and on demand.

3 out of 5
2 ratings
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Details

Version
1.0
Updated
January 7, 2026
Flag concern
Offered by
bobbywang0225
Size
32.73KiB
Languages
English (United States)
Developer
Email
bobbywang0225@icloud.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. To learn more, see the developer’s privacy policy.

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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