BPM & Key Finder
Find a song’s tempo (BPM) and key from an audio file — with its Camelot code and the chords that fit.
MP3 / WAV → BPM + Key
Why it is safe to use
- Runs entirely in your browser; nothing you enter is sent to a server.
- Free, with no account and no sign-up.
- Installable as an app; a tool you have opened keeps working offline.
- Open source (MIT) on GitHub.