BPM & key finder
Drop a song to get its tempo, key, Camelot code and the keys it mixes with. The audio is analysed on your device and never uploaded.
Got a half-time or double-time result? Pick the range your genre usually sits in. Every result also shows the ½× and 2× values.
Tap tempo
Next: find songs to mix with
Open the song finder & Camelot wheel to see songs at a BPM and key, and which keys mix together.
How accurate is it?
Tempo is usually exact for music with a steady beat, down to tenths of a BPM. Key detection gets most songs right. The usual mix-up is with the relative major or minor (for example A minor vs C major), so the second-best guess is shown too.
What is the Camelot wheel?
A DJ system that numbers keys 1–12 with A for minor and B for major. Keys with the same number, or a number one step away, mix smoothly. For example, 8A (A minor) works with 7A, 9A and 8B.
Why did it say 87 BPM when the song is 174?
Fast genres can be counted at half speed, and slow ones at double. Set the BPM range to the one your genre fits, or read the ½× / 2× values under the result.
Is my music uploaded?
No. The file is decoded and analysed inside your browser. Nothing leaves your device.

