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Skip to contentDetect BPM and musical key, tap tempo manually, normalize MP3 and view waveforms — locally.
Music Audio Pro Studio helps DJs, producers and video editors analyze tracks before mixing. Upload MP3 or WAV — tempo and key estimates run in your browser without cloud upload. Browse related Tentaco tools on this hub, open a studio mode when you need a fuller workspace, and keep files on your device whenever the tool runs locally.
Drop audio file into BPM detector
Wait for local analysis
Note BPM and key results
Try tap tempo for confirmation
BPM Detector — song tempo online
Estimate song tempo from an audio file in your browser. Use Tentaco BPM Detector to process the file in your browser and download the result — no account.
Music Key Detector — estimate song key
Rough musical key estimate from chroma analysis. Use Tentaco Music Key Detector to process the file in your browser and download the result — no account.
Tap Tempo — manual BPM by tapping
Tap a button to estimate BPM manually. Use Tentaco Tap Tempo to process the file in your browser and download the result — no account.
MP3 Normalize online — free in your browser
Normalize audio loudness to target LUFS. Use Tentaco MP3 Normalize to process the file in your browser and download the result — no account.
Privacy depends on the selected tool. Check the privacy block on each tool page for file transfer, processing location and storage.
LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.
Good for steady 4/4 tracks; live recordings may need tap tempo.