Pitch Changer Online Free — Change Key

Drop audio file here or click to upload

MP3 · WAV · AAC · OGG · FLAC — up to 100 MB

Upload your audio

Upload your MP3, WAV or AAC file to the Pitch Changer tool.

Set semitone shift

Drag the slider to shift pitch: -12 to +12 semitones. +12 = one octave up.

Use preset buttons

Click quick preset buttons: -12, -6, -3, 0 (original), +3, +6, +12.

Download

Click "Apply Pitch Change & Download" to save your pitch-shifted audio.

What is a semitone?

A semitone is the smallest interval in Western music — equivalent to one piano key step. 12 semitones = 1 octave.

Can I change pitch without changing speed?

MusicKIK's pitch changer uses playbackRate resampling, which adjusts both together. For independent pitch control, use a DAW like Audacity.

What is +12 semitones?

+12 semitones raises the pitch by exactly one octave — the audio plays at double the original frequency.

Can I use pitch changer to make my voice higher?

Yes — upload a voice recording and shift the pitch up by +2 to +5 semitones for a higher-pitched voice effect.

Pitch Changer Online Free — Change Key

Change pitch of any audio file online free. Shift up or down 12 semitones to transpose music key without changing tempo. MP3, WAV supported. MusicKIK uses the Web Audio API to process everything locally in your browser — your files never leave your device.

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