01
Upload a Track
Choose a full song or a section with clear chords, bass, or melody. The chorus often gives the most useful result.
Private audio analysis
Upload a Track to Find Its Key
Get the likely musical key, major or minor scale, Camelot code, and relative key from audio analyzed on your device.
Drop your audio file here
or choose a song, beat, loop, vocal, or instrumental
Your audio is analyzed locally in your browser.
MP3, WAV, FLAC, AAC, OGG, and M4A support depends on your browser.
Key & scaleCamelot codeKey clarity
Free Music Key FinderFind musical key and scale
Free Key Finder
Find the Key of Any Song Online
Upload a song, beat, or loop to find its musical key, major or minor scale, and Camelot code. Analyze audio locally in your browser for free - no upload and no credit card required.
Match tracks, samples, vocals, and BPM before you mix or create. For key changes or sparse harmony, use the result as a starting point and confirm it by ear.
Results
Your Song Key Finder Result
Start with the detected key. Then check the scale, Camelot code, relative key, and key clarity before you mix, transpose, or add new parts.
Example result
Detected musical key
The main result is the tonal center that best matches the notes and chords in the audio. Use it as your starting point for a mix, recording, or new arrangement.
Example detected key
AMinor
Root note: A
Scale: Minor
Relative key: C Major
How It Works
How to Find the Key of a Song
You do not need music theory to get started. Upload a track, check the estimated key, then use it for your mix, sample, vocal, or next music idea.
02
Analyze the Key
The tool checks pitch patterns in your audio and estimates the most likely major or minor key.
03
Review the Result
Check the key and scale first. If you DJ, use the Camelot code to compare compatible tracks.
04
Confirm and Keep Creating
Listen to the section you plan to use. Then check BPM, prepare a remix, separate stems, or start a new idea.
Use Cases
How Creators Use a Song Key Finder
Check the key before you match tracks, vocals, samples, or loops. Use it to plan a mix, transpose a part, or choose a more comfortable vocal key.
DJs
Plan Harmonic Transitions
Before your set, check the Camelot code. Use compatible keys to narrow your choices, then listen to the transition before you play it.
Compare Camelot codes
Plan transitions
Check BPM next
Accuracy
When Key Finder Results Are Most Reliable
Key Finder works best when a track has one clear tonal center. Use the result as a starting point, then listen to the part you plan to use.
Best with Clear Harmony
Choose a full song with one clear tonal center. You can also use a section with clear chords, bass, or melody.
Check Complex Tracks Twice
Short clips, drum-only sections, heavily processed audio, and key changes can make the result less certain. Try the chorus or another section with clear harmony.
Use Your Ear for the Final Check
A key finder gives you a useful estimate, not a final answer. Listen before you mix, transpose, or perform a track.
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Key Finder FAQ
Still have questions? Email our support team at support@makebpm.com.
Last updated:
What is a key finder?
A key finder is a music analysis tool that estimates the musical key of an audio track. It looks at notes and harmony, then returns the most likely key and scale, such as C major or A minor.
How do I find the key of a song online?
Upload a song or a clear audio section, then review the detected key, scale, Camelot code, and key clarity. If clarity is low, use a fuller section with chords, melody, or bass and compare the result by ear.
Is a song key finder the same as a BPM finder?
No. A song key finder identifies harmony and tonal center. A BPM finder estimates tempo. Check both when you need to match key and timing for DJ sets, mashups, remixes, loops, or edits.
What does Camelot code mean?
Camelot code is a DJ-friendly label for a musical key. For example, 8A represents A minor and 8B represents C major. Nearby codes are useful starting points for harmonic mixing.
Why can key finder results be less clear?
Some songs change key or use borrowed chords. Drum-only clips, sparse audio, and heavy effects can also hide the tonal center. Use a fuller section and check important decisions by ear.
How accurate is an audio key finder?
Results are strongest for full songs and sections with clear chords, melody, or bass. Drum-only clips, sparse audio, heavy effects, and key changes may need a listening check.
Ready to Find the Key of Your Song?
Upload an audio file and get a clear starting point for your next mix, recording, or production session.
Start Key Finder