A karaoke pitch changer moves a song into your key. Open the karaoke track, press ♭ to lower or ♯ to raise it one semitone at a time, up to 6 steps each way, like the key buttons on a karaoke machine. The tempo stays the same. Listen, then download MP3 or WAV. Nothing is uploaded.
Change the Key of Your Karaoke Track
Open a song, press ♭ to lower or ♯ to raise the key, then play or download. The tempo stays the same.
Processed in your browser. Your song is never uploaded.
Start here: choose a song from your device.
No song loaded
Key
0Original key
- Song key
- –
- New key
- –
Open a song to hear it here.
Open a song first. The download gets the new key in its name.
More options vocal reduce, tempo, file format
Removes sound that is exactly in the centre of a stereo mix (usually the lead vocal) and keeps the bass. It works only on some songs: reverb, backing vocals and centred instruments stay, and mono files cannot be changed.
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How to change the key of a karaoke song
- Open the song. Tap Choose a karaoke song and pick an MP3, M4A, WAV, OGG or FLAC file, or the sound of an MP4 video. The tool shows the song key within a few seconds.
- Press ♭ or ♯. Each press moves the key one semitone. The screen shows Key ♭ −2, the lights and the new key, for example G major → F major.
- Sing along. Press Play and switch between Original and New key at the same point in the song.
- Download. The file name carries the new key, for example
my-song_F-major_-2st.mp3, so you can play it on any karaoke app or speaker.
More options holds three extras: vocal reduce for stereo songs that still have the lead vocal, tempo from 70 to 130 %, and the file format (MP3 128 to 320 kbps, or WAV).
How karaoke machines change the key
On a karaoke machine, ♭ and ♯ each move the key by one semitone (a half step), usually up to about 6 steps each way. “Key −2” means every note, the backing and the guide vocal, sounds two semitones lower, so the melody fits a lower voice. Many singers call the key the “scale”, and “original pitch” is step 0. The table shows what each step does to a song in G major; what semitones are explains the maths.
| Key button | A G major song becomes | A4 (440 Hz) becomes | Typical use |
|---|---|---|---|
| ♭ −6 | D♭ major | 311.13 Hz | Deep: half an octave lower |
| ♭ −5 | D major | 329.63 Hz | Male song for a lower male voice |
| ♭ −4 | E♭ major | 349.23 Hz | Much easier high notes |
| ♭ −3 | E major | 369.99 Hz | Clearly lower, still natural |
| ♭ −2 | F major | 392.00 Hz | Most common fix for “too high” |
| ♭ −1 | F♯ major | 415.30 Hz | A little easier |
| 0 | G major | 440.00 Hz | Original key |
| ♯ +1 | A♭ major | 466.16 Hz | A little brighter |
| ♯ +2 | A major | 493.88 Hz | Most common fix for “too low” |
| ♯ +3 | B♭ major | 523.25 Hz | Clearly higher |
| ♯ +4 | B major | 554.37 Hz | Female singer on a male song |
| ♯ +5 | C major | 587.33 Hz | Big lift; voices start to sound thin |
| ♯ +6 | D♭ major | 622.25 Hz | Half an octave higher |
To move from one named key to another, count the half steps: G to E is 3 down, C to F is 5 up. The chart on how many semitones to change key gives every pair, and the semitone calculator works it out for any two notes.
Find the right karaoke key for your voice
Too high or too low?
Start with the highest line of the chorus. If you strain, press ♭ once or twice; if the verses turn breathy and low, press ♯. Most singers land within 3 steps of the original key. The guides on what to do when a song is too high and when a song is too low walk through it, and what key should I sing in matches keys to voice types. Not sure of your range? Take the vocal range test first.
Male songs for women, female songs for men
Male and female voices sit about 5 to 7 semitones apart, and a full octave is too far for the backing to sound natural, so use a smaller shift:
| Swap | Try first | Why |
|---|---|---|
| Male song, female singer | ♯ +3 to +5 | Brings a baritone melody up toward a mezzo range. Or press ♭ −7 to −8 and sing it an octave higher |
| Female song, male singer | ♭ −4 to −6 | Brings a soprano chorus down into tenor range |
| Duet (one key for both) | 0 to ±2 | Pick the key that the lower part can still reach |
Try one step at a time. The male to female key change and female to male key change guides go song by song.
Vocal reduce: what it can and cannot do
Vocal reduce subtracts the right channel from the left, which removes anything placed exactly in the centre of a stereo mix. The lead vocal is often there, but so are the kick and bass, so the tool puts back everything below 150 Hz. On our test mix it cut the centred voice by 37 dB and left the side instruments and the bass within 1 dB.
On real songs it works only sometimes. Reverb and doubled vocals spread across both channels and stay audible, centred instruments vanish with the voice, and the result is mono. Mono files cannot be changed, and the tool says so. A real karaoke version always sounds better. It is also not pitch correction: correcting a singer toward the right notes live is a different job, compared in the best pitch correction software.
Using it with a YouTube karaoke track
If the karaoke video plays on YouTube and you have no file, use the YouTube pitch changer instead: it changes the key while the video plays. A karaoke video you saved yourself (MP4 or WebM) opens here and gives the sound in the new key; the video pitch changer keeps the picture. Songs from streaming apps are protected and cannot be opened.
Which tool should you use?
| Tool | Use it when | Output |
|---|---|---|
| Karaoke pitch changer (this page) | A karaoke or backing track, shifted with ♭ / ♯ like a machine, with vocal reduce | MP3 or WAV |
| Online key changer | You want to pick the target key by name | MP3 or WAV |
| Audio pitch changer | Any audio, up to 12 semitones, fine tuning in cents | MP3 or WAV |
| Pitch shifter | Sound design: octave doubling, harmonies, detune | MP3 or WAV |
| Major to minor converter | You want the chords of a song in a minor key | Chords and notes |
| YouTube pitch changer | The song only plays on YouTube | Live playback |
Questions about karaoke pitch
How do I change the key of a karaoke song?
Open the song in the tool above and press ♭ to lower or ♯ to raise the key, one semitone per press. Press Play to check it, then download the new version as MP3 or WAV.
Does changing the karaoke key change the speed?
No. The key moves and the tempo and length stay the same, so a 3:30 song still lasts 3:30. If you want it slower or faster, use the tempo setting under More options; pitch vs tempo explains the difference.
How many steps should I lower a karaoke song?
Usually 1 to 3 steps (♭ −1 to −3). Lower one step at a time until the highest note of the chorus feels easy, then stop: going too low makes the verses mumbly.
What does “scale” mean on a karaoke machine?
It means the key. “Change the scale” or “reduce the scale” of a karaoke track means pressing ♭ (lower) or ♯ (higher); each step is one semitone.
Can it remove the vocals from a song?
Sometimes, on stereo songs with a centred voice. Turn on vocal reduce under More options. Reverb and backing vocals usually stay, so a real karaoke version sounds better.
Is it free, and is my song uploaded?
It is free, with no sign-up, and your song is never uploaded. Your browser does all the work on your device; there is no watermark or daily limit.
Tested: what we measured
- Eight key steps from ♭ −6 to ♯ +6, set with the buttons, exported and re-measured: pitch within 0.1 cents of the target, length identical to the original.
- Song key detection: a G major song read as G major; after ♯ ♯ the screen showed A major, and the file was named with the new key.
- Vocal reduce on a stereo test mix: centred voice −37 dB, side instruments within 0.1 dB, bass −0.8 dB.
- Tempo 80, 120 and 130 %: length exactly 6 s ÷ tempo, pitch unchanged. A 3-minute song plays in the new key after 0.6 s.
Last updated 27 September 2026 by Mayer. More tools on the online pitch changer home page; how we test: how it works.