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BPM and key finder — find the tempo and key of a song

Find the tempo (BPM) and musical key of any track in seconds, with Camelot notation for DJs. Or tap along to measure the tempo by hand.

🔒 Files stay on your device✓ Free, no sign-up

— BPM Tap the button in time with the beat — at least 4 taps.

🎬 Make a music video from your track

How it works

Add a track and wait a few seconds: the tool listens to the beats to find the tempo and to the notes to find the key. Half and double tempo are shown too, since some songs feel either way. Camelot codes help DJs mix tracks in matching keys.

Are my files uploaded anywhere?

No. Everything is processed by your own browser. Your music is not sent to our server or anyone else, so the tool is private and works even with very large files.