Visualify - Visualize your top artists on Spotify
Sampulator - Make (and record) beats on your keyboard
SYQEL - Bring your music to life
Tinkersynth - Create and purchase unique generative art
Kaleidosync - Kaleidosync is an all-in-one Spotify music visualizer that is all set to deliver a top-notch music experience with real-time support.
Splice Beat Maker - Make and share beats in your browser