BPM and key detector
Estimate BPM and musical key
Analyze an audio file in the browser and get heuristic tempo, key, confidence and detected energy peaks.
The result is a quick estimate for drafts; final music production should still be checked by ear.
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Browser-side media tools are useful for quick analysis, previews and lightweight exports.
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Large video and audio files may need time to decode; smaller samples work faster in the browser.
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When the result is a command, run it on a machine with ffmpeg or the required model installed.
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Review generated WAV, PNG, CSV and command outputs before using them in production workflows.
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Fullscreen mode on tablets and desktops gives more room for waveforms, tables and video previews.
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For final broadcast, podcast or advertising delivery, verify results with professional media tools too.
