This free song key finder reads what key a song is in — the scale and the Camelot code DJs mix by — in about two seconds, and it hands you the tempo in the same pass.
No account, nothing to install. Some call it a key detector — upload once, get key, scale and Camelot code back.
By ShinobiTools Team · Last updated: August 2026
Full-quality stems. No account, no per-track fee. Same model and same 192 kbps (or lossless WAV) as the paid tier — tracks up to 15 minutes.
This key finder app for android needs nothing installed — open it in a phone browser, same three answers as on desktop, no app-store detour. A key finder accurate enough for harmonic mixing, not a rough guess — the same detector on free and paid.
A song key finder here means one upload: the key, scale and BPM come back together, free and in about two seconds. This also works as an audio key finder on a short loop, not just a full song — same detector, no minimum length. If you're about to dial in autotune, this is also the same reading an autotune key finder needs before you touch the knob.
Every key sits on the Camelot wheel at a number-and-letter address — 8B, 11A, 6A. Two tracks mix cleanly when they share that address, or when one is one step around the wheel; go further than that and the clash gets audible fast. That's the whole system DJs lean on for harmonic mixing, and it's what comes back here alongside the plain key name.
Reliable on well-produced music with a clear tonal centre, and here is where it isn't:
On silence, or a clip too short to read, you get "couldn't read this" instead of a guess — showing nothing beats a confident wrong key.
This page only reads the key: drop the file in, find its scale and the Camelot code, then move on. If what you actually want is to shift the song into a different key — a semitone or two for an easier vocal range, or the whole track up — that's a different job, handled by the song key tool instead.
Producers ask for a key finder for beats before laying down other instruments over the top. An auto key finder is the same readout automated — no ear-training needed, just an upload. Type auto-tune key finder with the hyphen or auto tune key finder without it, and either search lands on the same page: one upload that reads the key, the scale and the BPM together, nothing to install.
Search online key finder music tool and you land here, reading the key straight off the file you upload, not a database of other people's guesses. Reorder it to music key finder online and nothing changes about the result. Look for a music key finder app instead and you'll find this runs the same way in a browser tab, no install required. Want just the two numbers without digging into Camelot codes? Both numbers come from that same single upload — read what you need and skip the rest.
Producers making beats ask for this as key finder beats readouts before layering other sounds on top. A beat and key finder read and a key finder for song ideas come from one upload — drop the file in and get the key back in about two seconds. Some type it as a key finder music online search instead of naming beats specifically. Want to check find key of mp3 files specifically? Any format works, not just MP3. Type find auto tune key with a space or find auto-tune key with a hyphen, and you land on the same page: drop the file in and the key comes back in about two seconds. Working with a key finder app music producers use daily? This runs the same way, just in the browser instead of an app.
To find a key without knowing any music theory, the result names both the note and whether it's major or minor. To find key of song uploads, the key, scale, Camelot code and BPM all come back from the same file. As a key finder song by song, each upload gets its own fresh reading — nothing is cached from an earlier file. Used as a song tempo finder, the BPM rides along with the key in the exact same pass. As a beat finder, the number that comes back is the tempo — for the musical key, the same upload also returns that separately.
To find song key details before a set, the Camelot code lets you check compatibility against a mix in progress. To find tempo readings for a whole playlist, each track still needs its own separate upload — there's no batch mode. To find key of beat only material, the reading gets weaker without any melody or chords to anchor it. As a key signature finder, the result names the key the same way sheet music would, without printing an actual signature. Used as a song and key finder together, both numbers — key and BPM — always come from one single upload.
As an auto tune finder, this is the same key reading a pitch-correction plugin needs before it can tune a vocal. To find tempo of song files recorded live, expect a weaker reading than from a studio version of the same track. As a tempo finder online, no account or e-mail is needed for any number of tracks in a day. Used as a beat tempo finder, drum-only material still returns a BPM even when the key comes back unreadable. As a tempo finder for music without a clear beat, a rubato or heavily produced track can still confuse the reading.
As a beats per minute finder, the number shown is always a single rounded figure, not a decimal average. Used as a key note finder, the home note and the scale together are what the result actually names. To find beat key pairs for producing, laying a sample over the read key avoids an awkward clash later. A tempo finder mp3 upload works exactly the same as WAV, M4A or FLAC — no format needs converting first. As a song note finder, only the home note and scale come back — not every note played across the track.
To find key and tempo together, both numbers appear on screen at once, not as two separate steps. Used as a key finder beat by beat, the tool still reads the whole file at once rather than a moment at a time. As a keynote finder, the reading names the tonal centre of the piece, not a single keystroke or note event. To find key of a song you're covering, checking the reading against your own ear catches the rare wrong guess. As a tempo key finder, a €5 pass raises the file-size ceiling from 120 MB to 300 MB.
To find song tempo on a clip too short to read, the page says so plainly instead of guessing a number. To find tempo and key from an old, low-bitrate file, the model still works with whatever detail is left in the recording. To find tempo of mp3 files specifically, no conversion step runs first — the format goes in exactly as it is. To find key of song online without installing anything, the result appears in the browser about two seconds after upload. As a beat finder from song material, a video file works the same way — the soundtrack gets read, the picture ignored.
To find key to beat placement right, producers usually run this before layering other instruments on top. A song tempo finder online run here never queues behind the stem-splitting tool — the two run separately. A key finder wav upload reads the same way as any other format, roughly ten minutes of uncompressed audio on the free tier. As a key and scale finder, the scale — major or minor — is what tells you whether a song leans bright or dark. The short version of find the tempo of a song is: upload it, wait about two seconds, then read the number.
To find that key before a rehearsal, a piano, guitar or vocal part all get read from the same uploaded recording. To find my key music sessions ahead of time, each track in a set list needs its own separate check. As a tone finder, what actually comes back is the musical key and scale, not a tone-of-voice or sentiment reading. Used as a key finder for songs across a whole album, each track still needs its own individual upload. A find key song result always pairs the key with its Camelot code, never one without the other.
That's the whole find key of any song routine here, and it works the same for a key finder bpm reading — one upload, both numbers, no separate BPM tool to open afterward.
The key of a song is two things at once: the note the music keeps coming home to, and whether it leans bright or dark. "A minor" means the song settles on an A and uses the minor scale, the darker of the two. "C major" settles on a C and uses the major scale. That is the whole idea — a home note and a flavour. Everything else on this page is shorthand for those two facts.
The Camelot code writes the same thing as a number and a letter, so two songs can be compared at a glance. A minor is 8A; its bright twin C major is 8B. The number says where the key sits on a wheel of twelve, the letter says minor (A) or major (B). Twenty-four key names become twenty-four addresses you can sort, and that is all DJs ever wanted from it.
Why DJs care. Two songs whose codes match, or sit one number apart, sound like they belong together when one plays over the other. Codes far apart clash, and a room full of people hears it straight away. So a DJ reads 8A off the track that is playing, looks for 8A, 7A, 9A or 8B in the crate, and the next mix lands smoothly without guessing and without any theory.
What to do with it if you are not a DJ. A singer uses the key to see whether a song sits in their range, and moves it with the song key tool when it does not. A guitarist or pianist uses it to pick the scale to solo in, or where to put a capo. A producer uses it to check that a sample lands in the same key as the track it is going into. A choir leader uses it to pick a starting note. Same number, four different uses.
One thing the code is not: a quality judgement. A song in 8A is not better or worse than one in 3B. The wheel only tells you what fits next to what.
The Camelot wheel renames the 24 keys as 1–12 plus A (minor) or B (major), so "E♭ minor works with G♭ major" becomes "6A works with 6B" — easier to read at a glance than key names. From any track's code, three moves stay safe: the same number and letter (identical key), one step clockwise or counter-clockwise (8B to 9B or 7B, a subtle lift or drop in energy), and the same number with the other letter (8B to 8A, its relative minor — a mood shift with no clash). Go further around the wheel than that and it starts to grate. Mixing your own edit? StemGrab gives you the acapella and instrumental from the same file, and key, BPM and stems together explains the full pass. Only after the tempo? The BPM finder is the same tool with the tempo up front. Want the whole song mapped out around that key instead of just the root note? MP3 to MIDI converts it into a file with vocals, bass, guitar and piano each on their own track.
What this song key finder does not do, so you know before you upload.
Yes — every upload returns the Camelot code alongside the key name, so you can match tracks by number for harmonic mixing.
Yes — no account, no e-mail, no cap. It runs on our own hardware.
DJ shorthand for the key: a number 1–12 plus A for minor or B for major. Tracks with the same code, or one number apart, mix together harmonically.
It can, mostly between a key and its relative major or minor, which share the same notes. On unclear audio it says so instead of guessing.
Yes, in the same pass — both numbers come back from one upload.
No. The key finder deletes your upload the moment the numbers come back, so there is nothing left to keep. Use the stem splitter instead and those results sit on the server for 45 minutes, or 24 hours if you bought a pass — that longer window is part of what the pass is for. Nothing is stored, shared or used to train anything — see privacy.
Yes — one upload gives you both the key and the BPM together, so there's no need for a separate tempo and key finder on top of this page.
Any common format works for a key finder mp3 upload — WAV, FLAC and M4A read the same way.
Yes — drop the track in and find key, scale and Camelot code together in about two seconds; there's nothing to sign up for.
No converting needed. This works as an mp3 key finder, and WAV, M4A, FLAC and MP4 video read exactly the same way. Drop in whatever you already have and the same three answers come back.
Yes. It is a key and tempo finder in a single pass: one upload returns the key, the scale, the Camelot code and the BPM together. You never have to run the same track through two separate tools.
No. Naming every chord is a different job; this page gives the key, the scale and the Camelot code of the song as a whole. If you want the actual notes, MP3 to MIDI writes the song out as separate instrument tracks you can open in any music program.
Not for this. Plugins such as Antares Auto-Tune have key detection built in because they need it to tune a voice, so if you already own one you can use that. This page exists for when you do not, and it needs nothing installed.
About two seconds for a normal song, and no daily limit — no counter that runs out and no account to make. The only ceiling is the file size: 120 MB free, 300 MB with a €5 pass.
Live and phone recordings, a bare acapella with no chords under it, drum-only tracks and anything atonal or heavily processed. On material with nothing readable in it you get "couldn't read this" rather than a guess.
Drop your file into StemGrab's key finder — MP3, WAV, M4A or FLAC — and the key, scale and Camelot code appear in about two seconds. No account needed.
Yes — StemGrab finds the musical key of any uploaded track for free. You also get the BPM and the Camelot code from the same file, with nothing to sign up for.
Yes. StemGrab reads the key and BPM in one pass, so the musical key, scale, Camelot code and tempo all appear together from a single upload.
StemGrab finds the key, Camelot code and BPM of any song you upload, free, in about two seconds — no account, no daily cap and nothing to install.
Yes — this page works the same way for any file you upload, no app or install needed. You get the key, the scale, the Camelot code and the BPM from one pass.
This page answers to songs key finder and key song finder alike — the key finder returns the key, its scale and the Camelot code in about two seconds. A key song search needs no account either.
Yes — upload the recording and the key, scale and Camelot code come back the same way whether you play piano, guitar or sing.
Yes — it reads the key straight off the uploaded audio; there's no manual note or chord entry involved.
Yes — find the key first, then the song key changer can shift the track into a range that suits your voice.
Only reads it — this page names the key; the song key tool is the separate converter that shifts a track into a different one.
Yes to both — it's tool-agnostic. Run a track through here as a key finder autotune step before opening it in Auto-Tune or any pitch-correction plugin, including an antares autotune key finder workflow — the reading comes off the raw audio either way, before any plugin touches it.
It's an online song key finder that reads straight from the audio, not a key finder chords calculator — there's nothing to type in. Skip the key finder from chords step entirely: upload the actual recording and the key, scale and Camelot code come back in about two seconds, which also covers a key finder music chords lookup without knowing a single chord name first.