Cellar for Mac is described as 'Cellar is the missing sound assistant for OS X. Cellar will capture and organize your library of sound effects, beats and loops' and is an app in the Audio & Music category. There are five alternatives to Cellar for Mac for a variety of platforms, including Mac, Windows, Linux, iPhone and Synology Cloud Station. The best alternative is Swinsian. It's not free, so if you're looking for a free alternative, you could try Musique or Helium Music Manager. Other great apps like Cellar for Mac are Roon (Paid) and Jukebox Star (Free).
Jukebox Star is a free social music video jukebox that allows you to create a free jukebox and let everyone add music to the playlist. You can also check-in to other jukeboxes near you so you can hear your favourite songs anywhere.