Song Key Finder
Drop in any song and find out what key it's in — with the Camelot code and compatible keys for mixing. Analysis runs 100% in your browser.
Drag & drop your song here, or click to browse
MP3 / WAV / M4A / FLAC / OGG / AAC • up to 200MB • nothing gets uploadedTap tempo
No file handy? Tap along to the beat to measure the BPM live.How to Find the Key of a Song
Whether you're a DJ planning harmonic transitions, a singer checking if a track sits in your range, or a producer hunting for an acapella that fits your beat — you need to know the key. This free song key finder reads it directly from the audio: drop in the file and get the key, mode, and Camelot code in seconds, without uploading anything.
How Key Detection Works
Drop In Your Track
MP3, WAV, M4A, FLAC, OGG, or AAC — your browser decodes the file locally; it never touches a server.
Harmonic Profiling
The analyzer builds a chromagram — a fingerprint of how much energy the track has on each of the 12 pitch classes — and compares it against known key profiles for all 24 major and minor keys.
Key, Camelot & Alternatives
You get the best-matching key, its Camelot and Open Key codes, the runner-up key (often the relative major/minor), and the keys that mix cleanly with it.
Major, Minor, and Relative Keys
Every minor key shares its notes with one major key — A minor and C major use exactly the same seven notes. These 'relative' pairs share a Camelot number (8A and 8B), which is why the second-best guess from any key detector is very often the relative key: harmonically they're nearly identical, differing mainly in which note feels like home.
For DJs this is good news: if the detector says 8A and the song is 'actually' 8B, every mixing decision you make from the Camelot code still works.
Camelot Wheel Chart: Every Key and Its Code
The full conversion between musical keys, Camelot codes, and Open Key notation:
| Key | Camelot | Open Key | Relative key |
|---|---|---|---|
| C Major | 8B | 1d | A Minor (8A) |
| A Minor | 8A | 1m | C Major (8B) |
| G Major | 9B | 2d | E Minor (9A) |
| E Minor | 9A | 2m | G Major (9B) |
| D Major | 10B | 3d | B Minor (10A) |
| B Minor | 10A | 3m | D Major (10B) |
| A Major | 11B | 4d | F♯ Minor (11A) |
| F♯ Minor | 11A | 4m | A Major (11B) |
| E Major | 12B | 5d | C♯ Minor (12A) |
| C♯ Minor | 12A | 5m | E Major (12B) |
| B Major | 1B | 6d | G♯ Minor (1A) |
| G♯ Minor | 1A | 6m | B Major (1B) |
| F♯/G♭ Major | 2B | 7d | D♯ Minor (2A) |
| D♯/E♭ Minor | 2A | 7m | F♯ Major (2B) |
| D♭ Major | 3B | 8d | B♭ Minor (3A) |
| B♭ Minor | 3A | 8m | D♭ Major (3B) |
| A♭ Major | 4B | 9d | F Minor (4A) |
| F Minor | 4A | 9m | A♭ Major (4B) |
| E♭ Major | 5B | 10d | C Minor (5A) |
| C Minor | 5A | 10m | E♭ Major (5B) |
| B♭ Major | 6B | 11d | G Minor (6A) |
| G Minor | 6A | 11m | B♭ Major (6B) |
| F Major | 7B | 12d | D Minor (7A) |
| D Minor | 7A | 12m | F Major (7B) |
You Know the Key — Now Make the Video
Neural frames analyzes your track the same way, then generates an AI music video whose visuals move with your sound. Your track carries straight into the editor.
Frequently Asked Questions
What key is my song in?
Drop the audio file into the finder above — it builds a harmonic profile of the track and matches it against all 24 major and minor keys, then shows the best match with its Camelot code. It's free, needs no signup, and the file never leaves your browser.
How accurate is automatic key detection?
Very reliable on harmonically stable music (pop, electronic, hip-hop). The most common 'miss' is the relative key — e.g. C Major instead of A Minor — which shares the same notes and the same Camelot number, so DJ mixing decisions still hold. That's why the result always shows the second-best guess too.
What is a Camelot code?
A DJ-friendly shorthand that arranges all 24 keys on a wheel of 12 numbers — 'A' for minor keys, 'B' for major. Adjacent codes are harmonically compatible, so you can pick tracks that mix in key without reading music. The full chart is on this page.
Does my file get uploaded?
No. The analysis runs entirely in your browser — your track never touches our servers. That's also why results appear within seconds even for lossless files.
Can this find the BPM too?
Yes — every analysis also measures the tempo. If you mainly care about BPM, our Key & BPM Finder presents the same analysis with the tempo front and center, and there's a tap-tempo tool for when you don't have the file.
Which keys mix well together?
Same Camelot code, one number up or down with the same letter, or the same number with the other letter (relative major/minor). After every analysis the finder lists exactly these compatible codes for your track.
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From Song Key to a Finished Music Video
Key detection is the backbone of harmonic mixing, remixing, and vocal matching — and it's the same analysis neural frames uses to generate AI music videos that follow your track's character. Find your key free here, and when you want the song to have visuals, bring it to the AI music video generator.