CSS Injector is a free Chrome extension developed by beepbooppk. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory. The program allows users to upload CSS on websites without the need to refresh the page.

With CSS Injector, web developers and designers can easily modify the CSS of a website directly on the client-side. This means that changes made using this extension do not get sent to the webserver, making it a convenient tool for experimenting with different styles and designs without affecting the actual website.

The extension seamlessly integrates into the Chrome browser, providing a user-friendly interface for adding and editing CSS rules. It offers a simple and straightforward way to inject CSS code into any webpage, allowing users to instantly see the changes reflected in real-time.

CSS Injector is a valuable tool for web developers and designers who want to quickly test and apply CSS changes on websites without the hassle of refreshing the page or making permanent modifications. It offers a convenient solution for experimenting with different styles and designs directly on the client-side.