Playtube is a free Chrome extension developed by Infinityu. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools.

Playtube is designed to enhance your YouTube playlist management experience. One of its main features is the ability to alphabetically re-order playlists when you save new videos to them. This ensures that your playlists are organized and easy to navigate. Additionally, Playtube allows you to alphabetize playlists directly from the save menu, making it convenient and efficient to maintain a well-structured collection of videos.

The developer has also promised to introduce more features in the future. These include the option to alphabetize playlists from the sidebar, the ability to search playlists while saving videos, and more. It's important to note that Playtube is a third-party tool and is not endorsed or produced by YouTube or Google.

Overall, Playtube offers a simple and useful solution for managing your YouTube playlists, making it easier to find and enjoy your favorite content.