Key Finder
Detect the musical key, Camelot code and confidence of any track, in the browser.
Max 100 MB · max 15 minutes · MP3, WAV, M4A, FLAC, OGG
Nothing is uploaded. The file is decoded and measured inside your browser.
Detect the musical key, Camelot code and confidence of any track, in the browser.
Max 100 MB · max 15 minutes · MP3, WAV, M4A, FLAC, OGG
Nothing is uploaded. The file is decoded and measured inside your browser.
Key Finder reads an audio file and estimates its musical key by building a pitch class profile from the whole track, then matching that profile against major and minor templates. The reading includes the key, its Camelot code for DJ harmonic mixing, and a confidence figure so you know how much to trust it.
Everything happens inside your browser. The file is decoded locally, analysed locally, and never sent to a server — which means large files are fast, private, and work offline once the page has loaded.
Drop an mp3, wav, flac, ogg or m4a anywhere on the page.
The waveform and pitch class profile are drawn as an ink trace, with the detected key marked.
Copy the reading as text, or send the same file straight on to Pitch & Tempo without loading it again.