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Audio BPM Detector

Calculate the Beats Per Minute (BPM) of any song or audio track instantly. Simple, fast, and runs entirely in your browser using Web Audio APIs.

Detect the BPM (tempo) and estimated musical key of any audio file. Uses peak detection and autocorrelation — fully client-side.

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How to use Audio BPM Detector

  1. Drag and drop your audio file (MP3, WAV, etc.) or click browse to select a song.
  2. Wait a few seconds while the Web Audio engine decodes and analyzes the track.
  3. View the calculated BPM and average beats per minute.

What is Audio BPM Detector?

This online BPM detector uses advanced web audio algorithms to parse your music and count the rhythmic peaks (beats) to calculate beats per minute (BPM) in real-time. All decoding is done locally using client-side Web Audio API decoding.

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FAQ

What formats are supported?
Most common formats decoded by your browser are supported, including MP3, WAV, M4A, OGG, and WebM.
Is it accurate?
Yes! The Web Audio peak-detection algorithm is highly accurate for electronic, pop, rock, and dance music with a steady rhythm.

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Author

AR
Aisha Rahmani"The Visual Storyteller"

Design Technologist & Media Specialist

Aisha bridges the gap between pixels and code. With expertise in image processing, SVG optimization, and video compression, she helps creators, designers, and marketers prepare media that looks great and loads fast. She has spoken at design conferences about accessible visual content and has helped agencies reduce page-weight budgets by up to 60 percent without sacrificing creative quality.

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