key + bpm finder
drag in a beat, loop, song, or demo and get the most likely key + tempo
drop audio here
or click to select an MP3, WAV, M4A, or FLAC file
| File Name | Most Likely Key | BPM | Accuracy | Runner-Up | Notes |
|---|
This browser tool gives a smart estimate using audio analysis.
If a song has heavy effects, no drums, tempo changes, or ambiguous chords, the runner-up option may be useful.