Free Audio Pitch Changer
Shift pitch in semitones without changing playback length.
Change a song's key, deepen a voice, or make a nightcore edit — want to change the tempo instead of the pitch? Use the Audio Speed Changer.
Drop your audio file here
or click to browse • MP3, WAV, FLAC, OGG, M4A
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Duration Preserved
Uses phase-vocoder pitch-shifting so audio length stays the same.
Fine Grained
Shift by fractional semitones for musical or vocal effects.
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Frequently Asked Questions
How do I change the pitch of a song?
Upload the track, drag the semitone slider up or down (each step is one semitone), preview, and download. The tempo and length stay exactly the same — only the pitch and key change.
What is a semitone?
One semitone is the distance between adjacent piano keys. Twelve semitones make one octave. Shifting +2 semitones raises a song by a whole tone; -12 drops it a full octave.
Does duration change with pitch?
No. The tool uses phase-vocoder pitch-shifting so playback length stays the same — unlike simply speeding up or slowing down audio, which changes both pitch and duration together.
Can I make a voice deeper or higher?
Yes. Shift down a few semitones for a deeper voice or up for a higher one — useful for voiceovers, character voices, anonymizing a recording, or nightcore-style edits.
How far can I shift?
You can shift between -24 and +24 semitones (two octaves down or up). Extreme values may sound artifact-heavy.
What formats work?
Upload MP3, WAV, FLAC, OGG, M4A, or AAC. Output is WAV, FLAC, or OGG.
Related audio tools
Speed, reverse, trim, and convert audio online.