BPM Finder & Metronome Tool

Detect the exact beats per minute (BPM) from any audio file, tap tempo live with your spacebar, play an audio metronome, and calculate synced delay milliseconds.

Audio BPM Detector Tap Tempo Audio Metronome → Producer Milliseconds Chart
Detection Method Onset Autocorrelation
Metronome Sound Synthetic Web Audio
Timing Accuracy Sub-millisecond Precision
Privacy 100% Client-Side

Upload audio to detect BPM

Drop MP3, WAV, M4A, FLAC, or OGG to calculate tempo

Select Audio Track

Onset rhythm analysis complete

DETECTED
Calculated Tempo
BEATS PER MINUTE

Live Tap Tempo

Tap the large pad or press Spacebar in rhythm with the music

Average BPM
Total Taps
Interval (ms)
BEATS PER MINUTE
Meter:

Delay & Reverb Times

Synced note values in milliseconds for music producers

Note Straight Dotted Triplet
Local Web Audio Synthesis

Metronome ticks are synthesized on the fly with precision oscillator nodes. Detection autocorrelation is computed strictly client-side. Zero server requests.

Detection Core: Fast Transient Autocorrelation
Audio Synthesis: Web Audio Oscillator

Understanding BPM and Musical Tempo

Beats per minute (BPM) measures the tempo of a musical piece. Knowing the exact BPM is essential for DJs beatmatching transitions, instrumentalists practicing with a metronome, and mixing engineers dialing in timed delay plugins.

Hip-Hop & Trap

75 to 95 BPM (or 140 to 160 half-time)

House & Techno

120 to 130 BPM (driving four-on-the-floor)

Drum & Bass

170 to 176 BPM (fast syncopated breakbeats)