Uska Editor is a free Chrome extension developed by n4ly. It falls under the category of Browsers and is a subcategory of Add-ons & Tools. Uska Editor allows users to inject custom scripts into webpages.

With Uska Editor, users can modify the user agent, insert stylesheets, execute scripts on page load, and trigger scripts with key inputs. The extension provides a URL input field where users can specify the webpages on which the scripts should be applied. It supports wildcard regular expressions, making it easy to apply scripts to multiple webpages.

It's important to note that Uska Editor offers powerful functionality, so caution should be exercised when using it. Users should avoid inputting untrusted scripts or links.

Overall, Uska Editor is a versatile tool for injecting custom scripts into webpages, providing users with the ability to customize their browsing experience.