BPM & Tempo Detector
Detect the BPM (beats per minute) of any song automatically, or tap along to measure it yourself.
Your files are processed locally and never uploaded
How to use
1
Drop a song.
2
AudioCharger analyses its beat.
3
See the BPM, or tap along to check it.
About this tool
The detector builds an onset envelope from the low and mid frequencies and finds the strongest periodicity between 60 and 200 BPM, then reports the best match and its half/double alternatives.
All processing happens locally in your browser, ensuring complete privacy for your recordings and music.
Frequently asked questions
Are my files uploaded?
No. AudioCharger processes everything inside your browser. Your files never leave your device and nothing is stored on a server.
Is it free?
Yes. Every AudioCharger tool is free, with no sign-up, no watermark and no file limits beyond your device's memory.