Playlist Machinery - Tools that help you create & organize your Spotify playlists
Musish - A web client for Apple Music
Playlistor - Convert Apple Music playlists to Spotify and vice versa
feverTunes - A web player for Apple Music support adding tags to playlist
playAppleMusic.com - An (unofficial) web player for Apple Music
Concertino - A classical music client for Apple Music 🎻🎶