Practical music utilities
Tools for choosing, mixing and planning music
Small, focused tools that run in your browser. Measure a beat, find a playlist, plan a listening window or check a harmonically compatible key.
Tempo
BPM Tapper
Tap along with a track to estimate its tempo and see a practical activity match.
Open tool →Discovery
Playlist Finder
Match an activity, energy level and vocal preference with three curated playlists.
Open tool →DJ mixing
Camelot Key Converter
Convert major and minor musical keys to Camelot notation and find compatible moves.
Open tool →Planning
Playlist Duration Calculator
Turn track count and average song length into a useful total listening time.
Open tool →