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BPM Detector

Detect the tempo (beats per minute) of a song from its audio, or tap along to measure it. Analysis runs on your device.

No uploads

Tap tempo

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Tap the button or press Space on each beat.

How to use BPM Detector

  1. 1Open BPM Detector. It runs in your browser, no sign-up.
  2. 2Drop your file here or choose it. It stays on your device; nothing is uploaded.
  3. 3Adjust the options until the preview looks right.
  4. 4Download the result.

Questions

How accurate is it?

Songs with a steady beat (pop, dance, hip-hop, rock) are usually detected within 1 BPM. Rubato, live or beatless music is harder — use tap tempo to confirm.

Why does it sometimes show half or double?

Tempo is ambiguous: a 70 BPM ballad can feel like 140. Alternatives are listed so you can pick the one that matches.

Is my song uploaded?

No. Audio is decoded and analysed in your browser.

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