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

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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

Q: How do I find the key of a song online?

Upload a song or clear audio section, then review the detected key, scale, Camelot code, relative key, and key clarity. For uncertain results, analyze a longer section with chords, melody, or bass and compare it by ear.

Q: How accurate is an audio key finder?

Results are most useful for full songs and sections with clear chords, melody, or bass. Key clarity describes how consistently the analyzed audio matches the detected key; it is not a guarantee of correctness. Drum-only clips, sparse audio, heavy effects, and key changes need a listening check.

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.minutes - for videos, podcasts, games, and social content.

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.

Upload a Track

Choose a full song or a section with clear chords, bass, or melody. The chorus often gives the most useful result.

Analyze the Key

The tool checks pitch patterns in your audio and estimates the most likely major or minor key.

Review the Result

Check the key and scale first. If you DJ, use the Camelot code to compare compatible tracks.

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.

DJ preparing a harmonic transition at a mixer

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.

Related Tools

More Music Tools for Your Next Step

Move from analysis to creation without losing your place in the workflow.

BPM Finder

Find song tempo after you check the key, then plan a mix, edit, loop, or transition with both answers.

Stem Splitter

Separate vocals, drums, bass, and instrumental parts before you sample, practice, or remix.

Vocal Remover

Create an instrumental or vocal-focused version for practice, analysis, covers, and remix preparation.

AI Song Generator

Turn an idea into an original song, beat, background track, or soundtrack.

AI Music Extender

Build a longer version of a music idea for an intro, outro, video, or next section.

Lyrics to Song

Turn lyrics, hooks, or verse ideas into a complete song with vocals and arrangement.

Key Finder FAQ

Still have questions? Email our support team at support@makebpm.com.

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.