Metronome & Tap Tempo

Microsecond-accurate timing using audioContext.currentTime. Tap the beat to detect BPM.

BPM

Andante

Beats per measure

Beat unit

BPM (exact)

Volume

Tap here repeatedly to detect the BPM

Keyboard: Space starts/stops · T taps tempo · ↑/↓ adjusts BPM by 1.

Scheduling uses AudioContext.currentTime for sub-millisecond accuracy — far more stable than setInterval or setTimeout, which drift when the OS is busy.