jarvisbox

BPM Tap Tempo Calculator

Tap the button to the beat of any song to instantly calculate BPM. Averages your last 8 taps for accuracy.

100% client-side · no upload

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BPM

Tap at least twice to calculate

How to use

  1. Play a song or listen to a rhythm you want to measure.
  2. Tap the large red button repeatedly in time with the beat.
  3. Your BPM appears after the second tap and stabilises after 4–8 taps.

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常见问题

Is this BPM tap tempo calculator free?
Yes, completely free with no signup and no usage limits.
Does my data leave my device?
No. All calculations happen in JavaScript inside your browser. Nothing is sent to any server.
Does it work on mobile?
Yes. The tap button is large and touch-friendly, designed for iPhone and Android use.
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