Free BPM & key finder for DJs.
Drop in a local audio file to estimate tempo, musical key, and Camelot notation in your browser. The file stays on your device.
Choose an audio file to begin. Best results come from full tracks with a steady beat.
BPM estimate
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Rounded to the nearest whole BPM.
Key estimate
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Simple chroma-style estimate from pitch energy.
Camelot
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Use with harmonic mixing and compatible-key planning.
Browser analysis is useful for quick checks
This free tool is intentionally lightweight. For release prep or a gig crate, use sneakyDL's server-side analysis so the BPM, key, Camelot value, title, artist, and artwork are written into the downloaded file.
Want BPM and key embedded automatically?
Paste a permitted SoundCloud, YouTube, Bandcamp, Mixcloud, or Spotify link into sneakyDL and get a tagged file back.