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TRACKPEEL
SONG KEY FINDER

Find the Key of Any Song

Drop a track and read its musical key and Camelot code in seconds. It is free, needs no sign-up, and your file is analyzed right in your browser, never uploaded.

Drop a song — or tap to uploadMP3 · WAV · M4A · FLAC · MP4 · MOV

Free, no sign-up. Your file is analyzed in your browser and never uploaded.

How it works

Find the key in three steps

01

Drop a file

Add an MP3, WAV, M4A, or FLAC — or a MP4/MOV video. It is read straight from your device and never sent anywhere.

02

We analyze the harmony

The tool measures which notes the track leans on and matches that profile to the most likely key, in a few seconds.

03

Read the result

Get the key, Camelot and Open Key codes, a confidence level, and a runner-up key — then copy any field with one click.

The basics

What a song's key tells you

A song's key is the home note and scale its melody and chords are built around — like A Minor or C Major. It shapes the mood and tells you which other notes and chords will sound in tune with the track.

Major and minor keys pair up as relatives that share the same notes — C Major and A Minor, for instance — which is why the finder's runner-up is often the relative key. Knowing the key also tells you how far to transpose if you need to move a song to a new key.

For producers

Check a beat's key before you record

Producers and songwriters check a beat's key before recording so a topline or sample stays in tune — and so a vocalist can pick a comfortable range or transpose if it sits too high or too low. Knowing the key up front saves re-cutting takes later.

Want the tempo as well? Use the BPM finder to detect it (with a tap-tempo option), or get key and tempo together — plus the Camelot wheel — with the key and BPM finder.

Sampling from the track? Pull it apart first with the stem splitter for clean vocals, drums, and bass.

FAQ

Frequently asked questions

What key is this song in?
Drop the song into the finder above and it tells you in seconds — the musical key (such as A Minor or C Major), its Camelot and Open Key codes, a confidence level, and a runner-up key in case the song is harmonically ambiguous. The file is analyzed in your browser and never uploaded.
Is this key finder free?
Yes. Finding a song’s key is completely free with no sign-up and no limits. Your file is analyzed locally in your browser and never uploaded, so there is no queue and nothing to pay for.
What is a relative major or minor?
Every major key shares its notes with one minor key, called its relative — for example C Major and A Minor use the same notes. The finder shows the key it judges most likely, and a track that reads as one will sit comfortably with its relative, which is why the runner-up is often the relative key.
How accurate is the key detection?
The tool analyzes the actual audio and reports a confidence level plus a runner-up key, so you can gauge how sure it is. It is accurate for most tracks, but key can be genuinely ambiguous on sparse, modal, or heavily processed material — when confidence is low, check the runner-up and trust your ear.
Can I transpose to a different key?
The finder identifies the current key; it does not change the audio. But knowing the key tells you exactly how far to transpose — for example, to move a beat from A Minor up to C Minor in your DAW or to a singer’s comfortable range.
Do I need to install anything?
No. The key finder runs entirely in your web browser — there is no app, plugin, or extension to install. Open the page, drop a file, and read the key.