Free tools for DJs & producers
Harmonic mixing wheel, key & BPM finder, tap tempo and mix math. No sign-up, no uploads. Everything runs in your browser.
Camelot Wheel
Outer ring = major (B), inner ring = minor (A). Tap a key to light up what mixes with it.
Same±1RelativeBoost
Tap a key on the wheel to see what mixes with it.
Key & BPM Finder
Drop a track to estimate its key and tempo. Your file is analysed on your device and is never uploaded.
Drop an audio file here or browse
Results are estimates (chroma + Krumhansl key profiles, onset-based tempo). Always trust your ears.
Tap Tempo
— BPM 0 taps
Tap along or press T. Pause 2 seconds to start over.
Tempo & Pitch
Bars → Time
AquaFire Recordings
Trance & progressive label. New releases, demos and artist news.