Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.
Swatches - A fun and accurate color picker for the real world
muted.io - A magical collection of interactive music theory tools & visual reference pages for musicians and music producers
ColorSnapper - The missing color picker for Mac.
soundrop - Soundrop is an app that allows you to create your own personalized sound track to keep you focused or relax.
Sketch Palettes - Sketch plugin to save and load colors into the color picker