Song Key Finder
Drop a track, get the key and Camelot code.
Drop in a track to estimate its musical key and Camelot code. Use it to mix songs that fit together, choose compatible samples, or write parts over an existing demo. Your workflow stays focused on the track, not a lookup chart.
Drop an audio file
or click to browse
MP3 · WAV · FLAC · AIFF · M4AWhat is key detection?
Every piece of music sits in a key — the harmonic center. Knowing it lets you mix tracks that won't clash, choose samples that fit, and write melodies on top.
Key detection analyzes the spectral content of a recording, builds a 12-bin chromagram of pitch class energies, and matches it against profiles for each of the 24 major/minor keys.
How to use
- Drop an audio file (MP3, WAV, FLAC, AIFF, M4A) onto the dropzone, or click to browse.
- Analysis runs in your browser — nothing is uploaded.
- The result shows the detected key in standard, Camelot, and Open Key notations.
Privacy
Audio files are processed locally via the Web Audio API. They never leave your device, never hit a server, never get stored.
Accuracy
Key detection is reliable on tonal material (vocals, melodic instruments, harmonic content). It's less reliable on heavily atonal or beat-only tracks. Always verify by ear.
Frequently asked questions
- How does the song key finder work?
- Drop an audio file and the tool analyses the harmonic content to estimate the most likely musical key using a chromagram and key-profile correlation algorithm.
- What is a Camelot code?
- Camelot is a key notation system used by DJs for harmonic mixing. Each key is assigned a number (1–12) and a letter — A for minor, B for major — so you can mix by moving between adjacent numbers or switching letters.
- How accurate is audio key detection?
- Key detection from audio is an estimate. Tracks with complex arrangements, frequent chord changes, or unconventional tonality can reduce accuracy. For critical work, confirm by ear after seeing the result.
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