Tap tempo
Count the BPM with your finger.
This page does not open a file. It times your taps and takes the median gap. For a machine read of an unreleased track, use the on-device finder.
Tap with the beat.
Why tap
A person can hear half-time. Autocorrelation cannot always.
The file tool folds tempo into 70 to 180 and can land on a double or a half. Tapping what you actually count is the check. Use both when the machine number feels wrong. How to find the BPM of a song.