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A injector extension for Chrome users. Now in Manifest V3 A injector extension for Chrome users. The best and faster solution for script injection. Executes your javascript/jquery scripts on specific web sites or in all domains. ABC JS Injector executes your javascript/jquery code snippets on specific web sites you defined previously or in all domains. We provide you 2 examples and an util DarkMode Manual Script in the options of this extension when this get installed, so you can learn how to use it. Scripts or styles can be executed automaticly or manually. You can access options by clicking cog icon in popup menu, or clicking options in settings menu. Then you will be able to create as many javascript/jquery code snippets or CSS new styles you need. Sadly, as Manifest v3 don't allow injection, this version needs to be publish with the js code charged, so, nowadays you all need to send me a mail to publish with your code, I will share my code by default, so you can access to it.
Inject JS - Run JavaScript code
A powerful browser extension that allows you to instantly inject and execute JavaScript code on any website. Perfect for web developers, testers, and power users who need to customize web page behavior on the fly. Key features: Execute custom JavaScript code on any website with a single click Save and manage multiple scripts for different websites Automatic script injection based on domain rules Multiple injection methods to bypass various CSP restrictions Dark mode support for comfortable coding at night Import/export functionality for backing up your scripts Works across all websites with proper permissions Whether you need to test new features, automate repetitive tasks, modify website behavior, or enhance your browsing experience, this extension gives you the power to run custom JavaScript directly in any web page
TamperJS — Inject Javascript Easily
Inject, tweak, and customize JavaScript on any website with a powerful Monaco-powered editor. TamperJS is a lightweight and efficient browser extension designed for developers who need a quick and seamless way to inject custom JavaScript into any website. Built with the Monaco Editor—the same technology behind VS Code—it provides a clean and intuitive environment for writing, testing, and executing scripts effortlessly. Whether you're a developer optimizing workflows, a researcher testing scripts, or a power user customizing web pages, TamperJS provides an easy-to-use interface with domain-based script management, instant execution, and a seamless dark mode for a comfortable coding experience. Our goal is to keep things simple yet effective, helping you customize the web in a way that suits your needs.
Inject Code
Inject your own Javascript, React/JSX, CSS / LESS / SCSS/ SASS into any webpage Features: * Custom code or link to an external library * Filter on specific URL's * Auto run * Filter auto run on specific URL's * Simple interface * Write/Update in separate tab while testing on web page * Toggle horizontal/vertical split view in edit mode * Toggle full screen in edit mode * Choose whether to run in all frames * Manage chrome.cookies API via window wrapper functions
Moonly - javascript and css injector
Inject javascript and css into pages dynamically. Moonly – lets you inject custom JavaScript and CSS into any web page. Create scripts, set conditions for when they run, and manage everything through a clean, built-in editor. What you can do: - Inject JavaScript or CSS — write either in a full-featured code editor (syntax highlighting, line numbers, bracket matching, and a choice of editor themes) - Run scripts manually with one click from the popup, or automatically when a page matches your conditions - Match pages by exact URL, substring, or regex pattern - Control injection timing — run JavaScript before the page loads or after (CSS is applied early, with no flash of unstyled content) - Organize your library — search, duplicate, reorder, and enable/disable scripts - Import and export scripts as JSON, one at a time or all at once, for backup or sharing Built for developers, testers, and power users who want to automate repetitive tasks, test page behavior, or customize their browsing experience. - Tabs — detect the active page for script matching - Scripting — inject your JavaScript and CSS into pages - Storage — save your scripts locally on your device Scripts are stored entirely on your device and never sent anywhere. No data is collected. Use responsibly — only run scripts you trust.