BeatKey / Chord Finder
Detect Chord Progressions
Upload any audio file to see its chords and musical key.
100% private - everything runs in your browser.
Start from a real workflow
What do you want to do with these chords?
Use Chord Finder for the first step, then jump straight into the next tool or guide instead of starting from a blank page.
Upload a demo, sample, or song idea here to map the progression and key in one step.
Move the chords you found into a new key for your singer, sample pack, or mashup.
Turn each chord into a playable keyboard shape when you are rebuilding the song by ear.
Jump into Scale Finder once you know the key, so your topline or solo stays inside the harmony.
Chord Detection
Find every chord with timestamps and confidence
Key Detection
Detect musical key with Camelot notation
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Your files never leave your device
Need the next writing step too?
Keep the session moving after you find the chords.
Compare what you found against proven pop, R and B, lo fi, and house movement patterns.
See every diatonic option in the detected key before you reharmonize the loop or chorus.
Open BeatKey when you need tempo, DJ key, or mix prep for the same track.
Check exact note frequencies when you are tuning 808s, resampling, or rebuilding the bassline.
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