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KEY DETECTOR
Upload a track and detect its musical key, scale, Camelot code and tempo in seconds. Your audio is processed locally in the browser.
KEY DETECTOR
Overview
A key detector listens to an audio file and estimates the tonal center of the music, such as C major, A minor or F# minor. It helps DJs mix harmonically, producers match vocals with instrumentals, and musicians understand the structure of a song faster.
Privacy
The analysis runs in your browser, so your demos, edits, stems and unreleased tracks stay on your device. You can inspect musical key information without uploading private audio to a server.
Creators
Use it before a remix session, DJ set, mashup, cover arrangement, vocal replacement or AI music workflow. Detecting key early saves time when choosing compatible tracks and transposition settings.
Find the likely musical key and scale of a song so you can understand its tonal center and make better remix, cover and arrangement decisions.
Translate detected key into Camelot notation for easier harmonic mixing, set planning and quick compatibility checks between tracks.
Get BPM alongside the key so you can match pitch and rhythm together when preparing edits, remixes, DJ transitions and vocal placements.
A key detector estimates the tonal center and scale of a song, such as C major or A minor. It helps you understand which notes and chords are most likely to fit the track.
Yes. You can use the online key detector for free directly in your browser.
No. The analyzer runs locally in your browser, so your audio stays on your device during analysis.
Most browser-playable audio formats are supported, including MP3, WAV, FLAC, OGG, AAC and M4A.
Yes. The detected key and Camelot code are useful for harmonic mixing, playlist preparation and smoother transitions.
Yes. Knowing the key of a vocal, loop or instrumental makes it easier to transpose material and avoid clashing notes.
No automatic key detector is perfect. Complex harmony, key changes, atonal sections or noisy recordings can produce ambiguous results, but the estimate is a strong starting point for most music workflows.
Key and tempo are often used together. BPM helps DJs, producers and editors match rhythm while key helps with harmonic compatibility.
Upload an audio file and see its musical key, Camelot code and BPM in seconds.