Pitch Changer
Shift a song up or down in semitones. Keep the tempo exactly where it was, or let the speed move with the pitch the way a tape machine would.
What it does
A different key, the same song
Transposing a recording is the ordinary fix for a song that sits wrong for the person singing it. Two semitones down and a chorus that was a shout becomes something you can hold; three up and a backing track finally fits a higher voice. The arrangement, the tempo and the feel all stay exactly as they were.
Doing that without changing the length is harder than it sounds, because pitch and duration are physically the same thing in a recording. Playing a track faster raises it; the only way to raise it without speeding it up is to stretch the audio in time first, then compress it back. That is what happens here, using an overlap-based stretch that aligns each segment with the waveform before it so the phase stays coherent and you do not get the fluttering that naive methods produce.
The tape-style behaviour is available too, as a switch. Turn tempo preservation off and the track speeds up as it rises, the way a record played at the wrong speed does — which is sometimes the actual goal rather than a side effect.
How it works
How to change the pitch of a song
Pick a file, choose an interval, listen.
- 1
Open your audio file
MP3, WAV, FLAC, M4A or a video file. Read directly from your device, never uploaded.
- 2
Choose how far to move it
In semitones, up to an octave in either direction, in half-semitone steps if you need to split the difference.
- 3
Decide what happens to the tempo
Leave tempo preservation on to transpose without changing the length, or turn it off for the tape effect.
What you get
What an audio pitch changer should let you control
Semitones, not a vague slider
Music moves in semitones, so the control does too. Two down is two down — the same interval a capo or a transpose button would give you, not an approximate percentage.
The tempo stays put, unless you want it not to
Transposing a backing track is useless if it also gets faster. Keeping the length is the default; the tape behaviour is one switch away when the sped-up sound is the point.
- same length
- same groove
- for transposing a song
- higher means faster
- the chipmunk effect
- for the sound of it
Honest about how far you can push it
A couple of semitones is transparent. Beyond about seven, time-stretching artefacts become audible on sustained vocals no matter which tool you use — worth knowing before you blame the file.
An online pitch changer with no upload step
The processing runs in your browser. Nothing is transmitted, there is no account, and you can try five different keys in a row without it costing anything.
Who uses it
Why people transpose a recording
Fitting a song to your range
Move a backing track two or three semitones until the top note stops being a problem.
Matching an instrument
Transposing instruments and alternate tunings do not line up with a recording. Move the recording instead of retuning.
Harmonic mixing
Nudge a track a semitone so its key sits next to the one before it in the set. Check both keys first with the song key finder.
Tuning a sample into your project
A loop lifted from another record is rarely in your key. Shift it, and keep the tempo where your session already is.
Practising slowly at pitch
Combine with the speed changer to slow a passage down without it dropping into a different key.
The tape effect on purpose
Turn tempo preservation off and pitch a vocal up for the classic sped-up sound, or down for something heavier.
FAQ
Pitch changer questions
Move it to another key
Choose a file, pick an interval, keep the tempo where it is.