Riffle

Riffle is a collaborative browser studio that launched in August 2026. You build songs on an infinite canvas of "stacks" holding audio, MIDI and drum tracks, record or play parts with your computer keyboard, and invite others to edit the same project live with inline comments. Its AI assistant, "sous chef," suggests chord progressions and parts and gives mix feedback, and lyric tools help with rhymes, metaphors and syllable counts. Projects can be shared as playable "drops" or exported as stems and mixdowns for Logic, Ableton or FL Studio. It's free during beta.