Key Finder

Find the musical key of any song.

Drop a track and get its key and Camelot code instantly — the fast way to find tracks that mix together harmonically. Everything runs in your browser; nothing is uploaded.

Drop your audio here
or click to choose a file · MP3, M4A, WAV, OGG, FLAC · stays on your device
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Key
Camelot
BPM
Confidence
Detects the key locally from the harmony. Works best on tonal music — very short or ambiguous clips can read as the relative major or minor, so check the confidence.

How to find a song's key

  1. Drop your track in. Choose or drag an MP3, M4A, WAV, OGG or FLAC — it loads in your browser and is never uploaded.
  2. Read the key. The musical key and Camelot code appear automatically, with a confidence rating and the BPM.
  3. Mix harmonically. Use the Camelot code to match it with tracks in a neighbouring key.

Frequently asked questions (5)

Is the key finder free?

Yes — completely free, with no sign-up, no watermarks, and no limit on how many tracks you analyze.

What is the Camelot code?

It is the DJ notation used for harmonic mixing, like 8A or 9B. We show it next to the musical key so you can find tracks that mix well together.

Are my files uploaded anywhere?

No. The analysis runs locally in your browser, so your audio never leaves your device.

How accurate is the key detection?

It works best on music with clear harmony. Very short or harmonically ambiguous clips can map to the relative major or minor, for example A minor versus C major, so check the confidence rating.

Which files can I use?

Whatever your browser can decode — MP3 and WAV work everywhere, with M4A, OGG and FLAC where supported.

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