1. Choose a track
Drop in a WAV, MP3, FLAC, M4A, AAC, OGG, AIFF or other browser-supported audio file.
BPM & Key Detector
Drop in any track and get its tempo and musical key in seconds. Runs entirely in your browser β your audio never leaves your device.
Drop an audio file
or click to browse β WAV, MP3, FLAC, M4A, OGG
π Private & instant β analysis happens on your device. Nothing is uploaded.
Analysingβ¦
β
Tempo
β BPM
Confidence
Key
β
Confidence
How the BPM and key detector works
2. Analyse locally
Your browser measures rhythmic peaks and musical pitch. The file stays on your device and is never uploaded.
3. Use the result
Copy the detected tempo, musical key and Camelot code into your DAW, playout system or DJ workflow.
Accuracy note: Clean, full-length tracks usually give the clearest reading. Live recordings, tempo changes, sparse intros and heavily modulated music can reduce confidence, so verify critical results by ear.