Tempo Detector

BPM & tempo drift

Drop in an MP3 or WAV. You get the tempo, a verdict on whether it holds steady from start to finish, and timestamps for every spot where it shifts. Nothing leaves your device.

Tempo drift timeline with a marker where the BPM shifts

Drift detection

See whether the tempo holds from start to finish, with timestamps wherever it shifts.

Instant BPM readout showing 128.0 BPM

Instant BPM

Get the exact tempo of any track in seconds — no guesswork, no tapping along.

Live waveform visualizer with a playhead and BPM badge

Live waveform

Watch the song play across a visual waveform with the live BPM at every moment.