cafe51 is a free Chrome add-on developed by Angelos Karagkiozidis. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. With cafe51, Spotify playlist enthusiasts can now easily build their playlists without the hassle of copy-pasting titles and switching between apps.

This small but handy tool allows users to find the Spotify version of the track they are currently listening to without leaving the Chrome tab. This means that users can add the track directly to their desired playlist(s) without any interruptions or extra steps.

cafe51 was initially a personal project by the developer, but he decided to publish it for others to benefit from. Although it is a side project, the developer welcomes any issues or requests users may have. So, if you're looking for a convenient way to build your Spotify playlists with tracks from YouTube and Offradio.gr, give cafe51 a try!