Pitch Changer: Change a Song's Pitch and Key Online

Change the pitch and key of any song online with a free pitch changer. Upload an audio file, shift it up or down by semitones, preview, and download — all in your browser, with no upload and no signup. Great for transposing a track to a singer's key, making nightcore or vaporwave edits, or matching two songs. Supports MP3, WAV, M4A, AAC, OGG, and FLAC.

Turn your song into a music video

Features

  • Shift pitch up or down by whole semitones (−12 to +12)
  • Perfect for key changes, karaoke transposing, nightcore and vaporwave
  • Runs fully in your browser — your audio never leaves your device
  • Free with no signup — then turn the result into a music video

Semitones, keys, and how far to shift

One semitone is one piano key, twelve make an octave, and every key change is just a count of semitones. Moving a song from C major to D major is +2; from A minor to F minor is -4 (or +8, an octave apart). The slider runs from -12 to +12, so any key is reachable in one move. Small shifts of one to three semitones keep the song sounding like itself; five or more starts to change its character, which is sometimes the point.

ShiftWhat it doesTypical use
+1 to +3Slightly brighter and a little fasterRaising a song into a singer's range
-1 to -3Slightly darker and a little slowerLowering a song for a lower voice
+4 to +6Noticeably higher and fasterNightcore and sped-up edits
-4 to -6Noticeably deeper and slowerVaporwave, slowed and deep edits
+12 / -12A full octave up or downEffects and sound design

Pitch and speed move together here

This pitch changer works the way tape and vinyl do: it resamples the audio, so raising the pitch shortens the track and lowering it lengthens it. Shifting up two semitones makes the song about 12 percent faster; shifting down two makes it about 11 percent slower. For key changes that is usually fine, because the tempo change is small and the song still feels the same, and for nightcore and vaporwave edits it is exactly the effect people want. What this tool does not do is change the pitch while holding the tempo fixed, or change the tempo while holding the pitch fixed; for that you need the pitch-shift or time-stretch in a DAW.

Transpose a song for a singer

The most common reason to change a song's pitch is that the original singer's range is not yours. Play the chorus, find the note that is out of reach, and shift the whole track down until it is comfortable, one semitone at a time. If you are building a karaoke version, remove the vocal first with the vocal remover or the karaoke maker and then transpose the instrumental, so the guide vocal is gone and the key is right. Pair the pitch changer with the BPM finder if you also need to know the tempo for practice.

Frequently Asked Questions

How do I change the pitch of a song?

Upload an audio file, drag the semitone slider up (higher) or down (lower), preview it, and download the result. One semitone is one piano key; +12 or −12 is a full octave. Everything runs in your browser — nothing is uploaded.

Does changing the pitch also change the speed?

Yes. This pitch changer resamples the audio, so shifting the pitch up makes it slightly faster and shifting it down makes it slightly slower — the same way changing tape or vinyl speed works. That is exactly what nightcore (pitched up) and vaporwave/'deep' edits (pitched down) want. For small ±1–2 semitone key changes the tempo shift is barely noticeable.

Is the pitch changer free?

Yes, completely free with no signup and no watermark. It runs entirely in your browser, so there are no upload limits and your file stays private.

Can I use it to change a song's key for karaoke or covers?

Absolutely. Shift the track up or down until it sits in your vocal range, then sing along or record your cover over it. Pair it with the free vocal remover to build a karaoke instrumental in your key.

What audio formats are supported?

MP3, WAV, M4A, AAC, OGG, and FLAC. The pitch-shifted result downloads as a high-quality WAV file.

How do I make a nightcore version of a song?

Upload the track and shift it up about +3 to +5 semitones — that gives the classic sped-up, higher-pitched nightcore sound. Download the WAV, then turn it into a nightcore music video with Solmi.

Can I change the pitch without changing the tempo?

Not with this tool. It resamples the audio, so pitch and speed move together, like a record played faster or slower. For a one- or two-semitone key change the speed difference is about 6 to 12 percent and rarely matters for practice or karaoke; for a large shift at the original tempo you need a DAW's pitch-shift or time-stretch, which processes the audio differently.

How many semitones should I transpose a song for my voice?

Find the highest note in the song and the highest note you can sing comfortably, and count the piano keys between them; that is your shift. Most singers need between two and five semitones. Try the shift, sing the chorus, and adjust by one semitone at a time rather than guessing.

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