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Inject JavaScript

5.0(

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ExtensionDeveloper Tools21 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.

Details

  • Version
    1.0
  • Updated
    January 7, 2026
  • 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

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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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