Soundiiz - Transferring playlists between various music streaming platforms.
Tune My Music - Transfer Playlists Between Music Services
Musconv - MusConv Tool is powerful music migration program.
FreeYourMusic - Migrate from and to any music services
SongShift - Connect multiple music services to transfer music libraries & automate syncing between different music providers. And more! Custom source + destination configurations, extra features like merging, bulk processes, update monitoring, smart matching.
moooodify - Sort your Spotify music by any mood you like and save them as playlists.