NOISESUPPLY - Pandora for SoundCloud
Tune My Music - Transfer Playlists Between Music Services
Move to Apple Music - Convert your Spotify playlists for Apple Music
HotMusic - HotMusic is the best music service to discover songs from your favourite genres RIGHT AFTER their...
Spotify - Map shows when two people play same song at same time
Playlist Machinery - Tools that help you create & organize your Spotify playlists