Move a song up or down by as many as 12 semitones, or play it from 0.5x to 2x speed. Change one, the other stays put.
or drop it here
MP3, WAV, M4A, OGG, FLAC or any format your browser can decode; up to the first 10 minutes · Maximum 100 MBYour file is processed in your browser and never uploaded
MP3, WAV, M4A, OGG or FLAC, decoded in your browser.
Pitch from -12 to +12 semitones, tempo from 0.5x to 2x.
Listen on the page, then save the result as a WAV file.
This song key changer moves a song one key step per semitone. Go up 2 to turn C major into D major, or down 3 to take E minor to C sharp minor. Tempo and length stay put.
Slow a tricky passage to 0.75x to learn it, or push a workout mix to 1.25x. The key stays put, so a 120 BPM song at 0.75x plays at 90 BPM in its original key.
This online key changer processes your file on your own device and never uploads it. No install, no account. For long files, it works on the first 10 minutes.
Singers, players, teachers and video makers reach for pitch and tempo control for different reasons.
Lower a backing track two or three semitones so the chorus sits where your voice is strongest, or raise it when a song feels too low to project.
Slow a fast solo or vocal run to 0.7x, learn it note by note, then raise the tempo a little each session until you can play it at full speed.
Many rock songs are recorded with guitars tuned down a half step. Shift the track up 1 semitone and play along in standard tuning.
Raise a voiceover a few semitones for a lighter cartoon tone, or lower it for a deeper narrator, then drop the WAV into your video editor.
Nudge a track's BPM closer to the next song in a set, or speed up a running playlist, while every song keeps its original key.
Teachers can move a song into a key that young voices reach comfortably, or slow it down so a class can learn the melody line by line.
Changing playback speed moves pitch and tempo together. A pitch shifter separates them. A DAW adds control and setup.
| Compare | This pitch changer | Speed change only | Desktop audio editor |
|---|---|---|---|
| Up 2 semitones | Higher key, same tempo | Higher key, about 12% faster | Higher key, same tempo |
| Slow to 0.75x | Slower, same key | Slower, about 5 semitones lower | Slower, same key |
| Setup | Open the page, nothing to install | A turntable, tape deck or sampler | Install the software and learn it |
| Large shifts | Artifacts grow past about 5 semitones | Clean, but key and tempo are tied | Depends on the algorithm you pick |
| Output | A WAV file to download | Whatever you record or export | Many formats, multitrack edits |
| Best for | Quick key and tempo changes | Sped-up and slowed edits | Mixing and detailed editing |
A pitch shifter sounds best with modest shifts and a clean source. Keep these in mind before you download.
Run the song through the key finder so you know where you start, then count the semitones to the key you want.
Up to about 5 semitones either way usually sounds natural. Beyond that, voices turn thin or boomy and artifacts get easy to hear.
Up 7 semitones and down 5 land in the same key, an octave apart. When either register works, pick the smaller move.
For a target tempo, divide it by the original BPM: 90 from a 120 BPM song is 0.75x. The BPM finder gives you the starting number.
A WAV or high bitrate MP3 holds up better than a low quality copy, since shifting makes noise and compression artifacts more obvious.
Play the loudest, densest section in the preview. If the chorus holds up after the shift, the quieter parts usually will too.
Quick answers about semitones, tempo, sound quality and privacy.
Open the file in the tool above, move the pitch slider up or down in semitones, press Render preview and play the result. When it sounds right, download it as a WAV file. The song keeps its original tempo unless you also move the tempo slider.
Find the current key with the key finder, count the semitones to the key you want, then move the pitch slider by that many. Each semitone is one key step: C to D is 2, C to F is 5, and 12 make a full octave. The tempo stays put, so it works as an audio key changer.
For a lower key, try the pitch slider at -1, -2 and -3 and sing the highest line each time. Pick the smallest shift where that line feels easy. A drop of 1 to 3 semitones is often enough, and smaller shifts also sound the most natural.
Yes. The tempo slider runs from 0.5x to 2x and leaves the key alone, so it works as a BPM changer. Multiply the original BPM by the factor: a 100 BPM song at 1.2x plays at 120 BPM. Use the BPM finder first if you do not know the original tempo.
Pitch shifting stretches and re-spaces the sound wave. Beyond about 5 semitones the side effects become audible: a metallic edge, smeared drums, and voices that sound thin when raised or boomy when lowered. Every pitch shifter does this, so save big shifts for effects.
Yes. Open a voice recording and raise it a few semitones for a lighter tone, or lower it for a deeper one. A plain pitch shift moves the whole voice, resonance included, so large shifts sound like a cartoon or monster effect rather than a different person.
It opens any format your browser can decode: MP3, WAV, M4A or AAC, OGG and, in most browsers, FLAC. The result downloads as an uncompressed WAV file. For long recordings it works on the first 10 minutes. To change the pitch of a video, extract its audio first.
It is free and needs no sign-up. It does not use AI: pitch and tempo changes are made with established signal-processing methods that run inside your browser, and your file is never uploaded to a server.
Open a song, set the semitones and tempo, then download your WAV. Nothing to install or upload.
