Key + Scale
Returns the tonal center (e.g. A) and the scale (major or minor) plus modal alternatives where ambiguous.
KEY FINDER
Find any song's musical key
Drop in audio to read key, scale and Camelot code in seconds — fully private, browser-only.
Musical Key --
Camelot Wheel --
Tempo --
KEY FINDER
Lock the Key of Any Track
DJs, producers, songwriters and acapella editors all need to know a song's key. Our Key Finder gives you a precise reading without uploading anything.
Overview
Find Key in Seconds
Drop a song and the Key Finder analyzes its harmonic content, returning the dominant key, scale and Camelot code with a confidence score.
Privacy
Browser-Only
All processing runs locally — your audio never uploads. Perfect for unreleased mixes and confidential client material.
Use Cases
DJs, Producers, Vocalists
Match keys for harmonic mashups, find compatible acapellas, transpose covers to vocal-friendly ranges and more.
What Is a Key Finder?
Camelot Wheel
Outputs the Camelot code (e.g. 11A) so DJs can mix harmonically without memorizing keys.
Local Processing
Runs in WebAudio with no uploads, no logins, no daily caps.
Features
Speed
- Key reading in 3–5 seconds.
- Works with files up to 30 minutes.
- No queue, no signups.
Accuracy
- Detects all 24 major / minor keys.
- Confidence score per detection.
- Modal and ambiguous-key flagging.
DJ-Ready
- Camelot code output.
- Copy-to-clipboard one-click.
- Pair with BPM detection for full mix prep.
Why Choose Our Key Finder
Instant
Get a key reading in seconds.
Private
Runs entirely in your browser.
Free
Unlimited use, no signups.
Camelot Compatible
Mix harmonically with Mixed In Key style codes.
Copy & Paste
Use the key in your DAW or DJ software.
Pairs With BPM
Combine with BPM Finder for full track analysis.
FAQ: Key Finder
How accurate is the Key Finder?
High accuracy on tracks with clear tonality. Modal music, atonal pieces and heavily detuned mixes may show lower confidence.
Are my audio files uploaded?
No. Detection runs in your browser using WebAudio.
What's the Camelot code?
A DJ-friendly notation system mapping every key to a number-letter code (e.g. A minor = 8A) so harmonically compatible tracks share neighboring codes.
Can it detect modes other than major and minor?
Yes — Dorian, Mixolydian, Phrygian and other modal flavors are flagged when ambiguous.
Can I find the key of a vocal acapella?
Yes. The Key Finder works with acapella stems too.