Find the key and BPM
Choose a song and see its key and tempo in a few seconds. Useful for playing along, singing in the right key or mixing tracks as a DJ.
Play the song and tap the button (or the space bar) along with the beat to check the BPM.
How to use it
- 1
Choose the song on your device.
- 2
Wait a few seconds while the page listens to it.
- 3
See the key and the BPM. If you want, tap along with the beat to confirm the tempo.
What people use it for
- Playing along
Know which key to play in before picking up the guitar or the keyboard.
- Singing
See the original key of a song before deciding whether it fits your voice.
- DJ mixes
Match tempo and key so one track flows into the next.
- Producing
Find the tempo and key of a sample or reference track before starting a beat.
- Teaching
Show students the key and tempo of the songs they like.
Tips for a better result
- 01Use the full song.
The intro or a short clip may not have the full chords yet.
- 02Check the relative key.
If the song sounds sad, the minor key is usually the right one; if it sounds bright, the major.
- 03Confirm the BPM by tapping.
Tap along for a few seconds. If your number is half or double, trust what you feel.
- 04Songs that change key.
The result is the key heard most of the time. Modulations at the end may not show.
Common questions
How accurate is it?
Songs with a steady beat usually get the right BPM. Sometimes the result is half or double (for example 70 or 140), so both are shown. A song in a minor key can be read as its relative major, because they use the same notes, so both are shown too.
What is the Camelot code?
It is the key wheel DJs use. Songs with the same number, or a number next to it, usually mix well together.
Why does it say 432 Hz or another tuning?
Some songs are tuned a little higher or lower than the standard 440 Hz. The page adjusts for this before finding the key and tells you when it happens.
Is my song uploaded?
No. The song is analyzed in your own browser, and the file is not sent to any server.