Choose the audio file
Use a section with a steady, audible pulse whenever possible.
Free Audio Tempo Detector
Audio Tempo Detector
Find the likely BPM of an audio file without tapping by hand. Upload the track, analyse its beat, and use the confidence and half/double-time options to choose the tempo that feels right.
Use the toolDetect the BPM of an audio file
Use a section with a steady beat and check whether the result matches the pulse you count. Sparse or changing rhythms can produce uncertain readings.
Use the toolRun tempo detection
The result shows the estimated BPM and other plausible interpretations.
Compare with the music
Count along and decide whether the main reading, half, or double value matches the felt beat.
Copy or download
Copy the BPM for quick use or save the complete result as JSON.
Tempo detection examples and common surprises
A correct rhythmic reading is not always the largest or smallest number shown.
70 BPM or 140 BPM
A slow groove can be counted on the main beat at 70 or in double-time at 140.
A live song with drift
The estimate may describe the strongest average pulse even when the performance changes slightly.
Ambient or rubato music
Low confidence is expected when the recording has no steady repeating beat.
Check half-time, double-time, and changing tempos
Listen to the pulse
Count four beats repeatedly and confirm that bar lines continue to land naturally.
Use a representative section
Long intros, breakdowns, and tempo changes can make one overall reading less useful.
Confirm important work manually
For remixing, synchronisation, or performance preparation, verify the BPM in your audio software or with tap tempo.
Tempo Detector FAQ
What does confidence mean?+
It describes how consistently the audio supports the displayed rhythmic estimate.
Why are alternative BPM values shown?+
Music can be interpreted in half-time or double-time, so related values may fit the same pulse.
Will tempo detection work on speech?+
Speech usually has no stable musical beat, so a meaningful BPM may not be available.
Can I download the result?+
Yes. Copy the BPM or download the tempo reading and alternatives as JSON.