🌗 Theme
Key Finder
Estimate the musical key of an audio file (runs locally in your browser)
Choose an audio file
Tip: best results on full mixes with clear bass/harmony (not drums-only).
Analyze Intro
Analyze Middle
Analyze “Chorus-ish”
Intro:
best if the song starts with clear chords (not drums-only).
Middle:
most reliable overall section for key detection.
Chorus-ish:
often strongest harmony in pop/rock tracks.
No uploads — your file stays on your device.