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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.
Custom Style Script
Add Custom JavaScript (JS) Code or Styles (CSS) to any page. Custom Style Script customizes the way a webpage looks or behaves, by adding a small JavaScript or CSS code. You can also specify a URL to add the code or add it to all pages. Key features: 1. Add custom JavaScript codes or styles (CSS) to a specific page or all pages. 2. Clicking on the toolbar icon allows you to disable or enable the addon. 3. Each code item has several options to adjust (see options page for details). 4. You can add several code items and active or inactive them separately. 5. An example of how to add a code is available in the add-on's options page. 6. Before adding the code (JS or CSS) please make sure you have validated the code. 7. Online JS or CSS links (i.e. jQuery or bootstrap) can also be added to any page. See add-on's options page for details. Note: to report bugs, or request a feature, please visit the add-on's homepage (https://mybrowseraddon.com/custom-style-script.html) and fill the bug report form.
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
CSS inject
Very simple chrome extension to inject CSS into websites
InjectJS – JavaScript Injector & Custom Script Manager
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. 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!
