JS/CSS Injector EN

JS/CSS Injector is a powerful and flexible browser extension tailored for users who want to customize their web browsing experience by injecting custom JavaScript (JS) and Cascading Style Sheets (CSS) into any website they visit. Designed for both developers and everyday users, this extension provides an intuitive interface combined with strong functionality, allowing you to enhance, control, and modify web pages in real time. Whether your goal is to improve productivity, apply personalized themes, automate repetitive tasks, or experiment with code live, JS/CSS Injector brings advanced customization options directly into your browser environment.

This extension integrates seamlessly with Chrome and other Chromium-based browsers, offering robust tools for organizing, saving, updating, and deploying your custom scripts and styles across multiple websites. Its user-friendly dashboard delivers comprehensive management capabilities, while the side panel provides quick access to active scripts and styles. Additionally, the extension adds options to your browser’s context menu (right-click menu) for instant script injection, making it easy for both beginners and power users to tweak webpages on demand. All injected scripts and styles are persistently stored, ensuring that your customizations remain intact across browsing sessions and are readily editable whenever you choose.

Starting with JS/CSS Injector is straightforward: open the toolbar popup to add new JavaScript or CSS code through a simple, built-in editor. You can organize these scripts individually by site or apply them globally, depending on your needs. The dashboard helps you manage all active and inactive scripts/styles by letting you view, edit, reorder, or delete them effortlessly. The context menu integration allows you to inject your preferred code snippets with just a right-click, speeding up testing or customization without navigating away from the page. Meanwhile, the side panel provides a convenient, real-time overview of injected code so you can turn customizations on or off instantly without disruption.

Whether you’re a developer testing new scripts, a designer fixing UI problems, or a privacy-conscious user creating a tailored browsing environment, JS/CSS Injector empowers you to take full control over how websites look and behave. Its flexible system supports a wide variety of use cases, from applying sleek custom themes to automating mundane workflows. All this is provided with safety and persistent storage features to keep your data secure and your browsing experience consistent.

Key Features:
- Dashboard for managing all injected scripts and styles: Effortlessly organize, view, and edit your entire collection of custom JavaScript and CSS, keeping your customization environment neat and accessible.
- Built-in editor with instant save and update functionality: Modify existing scripts or create new ones directly within the extension interface without needing external tools or complex browser menus.
- Context menu integration for quick script/style injection: Simply right-click anywhere on a web page to inject your custom code or styles immediately—perfect for rapid testing or on-the-fly changes.
- Side panel for quick browsing and toggling of scripts and styles: Access and control your active injections in real time without interrupting your main browsing activities.
- Persistent storage of scripts and styles: Your customizations are saved securely, remaining active across browser restarts and sessions for continuous personalized browsing.
- Flexible application scope with global or site-specific injections: Decide whether your scripts and styles apply to a single domain or all websites, tailoring the reach of your customizations.
- User-friendly popup interface for easy management: Quickly add, enable, disable, or remove scripts/styles right from the toolbar popup without navigating away from the page you’re visiting.

How It Works:
1. Open the extension’s toolbar popup to create new custom JS or CSS using the integrated editor.
2. Choose whether each script or style should be applied globally across all sites or restricted to specific domains.
3. Use the dashboard to track, edit, rearrange, or delete your saved scripts and styles for efficient management.
4. Inject scripts or styles on the fly by right-clicking on any webpage and selecting your desired custom code through the context menu.
5. Access the side panel to instantly view, toggle on/off, or adjust active injections without leaving your browsing session.
6. Benefit from persistent storage that ensures all your customizations remain intact and ready every time you launch your browser.
7. Edit, update, or remove your code at any time with changes being automatically saved and applied seamlessly across affected pages.

Privacy: - No personal data collected.