YouTubeDJ is a free Chrome add-on developed by Softeris. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools application.

YouTubeDJ allows users to play all YouTube videos from a Facebook user or page. By simply visiting any Facebook user or page and clicking on the YouTubeDJ icon in the address bar, users can enjoy a continuous stream of YouTube videos, creating a radio station-like experience.

It's important to note that this application was not developed by Google Inc., and YouTube is a trademark of Google Inc. The use of this trademark is subject to Google Permissions.

Overall, YouTubeDJ provides a convenient way for users to enjoy a curated playlist of YouTube videos from Facebook, enhancing their browsing experience and allowing them to easily discover and enjoy content from their favorite Facebook users or pages.