Free browser tool
Audio Analyzer
Analyze BPM, musical key, loudness and dynamics directly in your browser.
Your audio stays on your device.
Analysis runs locally in your browser. Nothing is uploaded.
Drop an audio file here
WAV, MP3, or another format your browser can decode.
Up to 256 MB. Processing uses your device's CPU and memory.
Reading audio…
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Analysis complete
Waveform
Downsampled min/max overview
Low
Mid
High
Tempo
- BPM confidence
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- Tempo candidates
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- Key confidence
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Dynamics
- Sample Peak
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- RMS
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- Crest Factor
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Audio file
- Duration
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- Sample Rate
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- Channels
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- Bit Depth
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BPM and key are estimates. Loudness follows an ITU-R BS.1770-style gated measurement; peak is sample peak in dBFS.
