BeatKey
Detect BPM & Musical Key
Drop an audio file to instantly analyze tempo and key.
100% private - everything runs in your browser.
Included after analysis
A personalized 8-bar starting plan — free, no signup
BeatKey turns the detected key and BPM into a chord move, bass root, drum grid, and harmonic reason you can copy into your DAW notes.
🎵
Drop an audio file here
or click to browse
MP3, WAV, FLAC, OGG, AAC · Max 50 MB
Start from your workflow
Not sure where to go next?
Find the key first, then jump into the harmonic mixing guide and Camelot wheel.
Use BeatKey on a sample, then open the sample key guide to keep chops in key.
After you detect BPM, open the delay calculator for dotted delays, triplets, and pre-delay timings.
Detect the track key, then open Scale Finder to pull usable notes and modes right away.
Instant Analysis
Results in under 5 seconds for most tracks
100% Private
Your files never leave your device
BPM + Key
Tempo, key, beat positions, and confidence
More free music tools