Pitch Changer change a song's key or speed
Shift pitch by semitones or transpose straight to a target key, slow a track down, keep vocals natural with formant compensation, and export WAV or MP3. Nothing is uploaded.
Your file is processed in your browser and never uploaded.
How to change a song's key or speed
Three steps, no upload, no account.
Load your audio
Drop in an MP3, WAV, FLAC or other audio file. It's decoded locally — nothing leaves your device.
Adjust pitch & speed
Move the pitch slider in semitones or pick a target key, set the speed, and preview instantly. Toggle formant compensation to keep voices natural.
Export WAV or MP3
Render the result in your browser and download a lossless WAV or a compressed MP3.
Who it's for
One tool for singers, DJs and producers.
DJs
Match keys and tempo for harmonic mixing — transpose a track to a compatible Camelot key without re-ripping.
Producers
Repitch samples, change a loop's key, or slow a stem down while keeping it usable in your DAW.
Singers
Lower or raise a backing track or karaoke file to fit your vocal range in seconds.
Key terms, explained
- Pitch
- How high or low a sound is. Shifting pitch moves every note by the same interval, measured in semitones.
- Semitone
- The smallest step between two adjacent notes (e.g. C to C♯). Twelve semitones make one octave.
- Formant compensation
- Keeps the natural timbre of a voice when you change pitch, so vocals don't sound like a chipmunk or a monster.
- Slowed + reverb
- A popular edit that slows a song down and adds reverb for a dreamy, spacious feel. Available here as a one-click preset.
Why use this pitch changer
Free, private and high quality — no catch.
- Everything runs in your browser — your file is never uploaded.
- High-quality pitch shifting with optional formant preservation.
- No account, no watermark, no install.
Pitch changer vs. Auto-Tune & musical key
A pitch changer transposes the whole track by a fixed amount. It's not Auto-Tune or pitch correction, which retunes individual notes to fix tuning.
“Key” here means the musical key of the song (like F♯ minor), not a key fob or password. Changing the key transposes every note up or down together.
Frequently asked questions
Is this pitch changer free?
Yes. It's completely free, with no account, watermark or limits beyond a 10-minute file length. Everything runs in your browser.
Is my audio uploaded anywhere?
No. Your file is decoded and processed entirely in your browser — it never leaves your device.
What's the difference between changing key and changing speed?
Changing key (pitch) moves every note up or down without changing the tempo. Changing speed makes the song faster or slower. Here you can adjust each independently.
Is a pitch changer the same as Auto-Tune?
No. A pitch changer shifts the entire track by a set number of semitones. Auto-Tune corrects the pitch of individual notes.
How do I make a slowed + reverb version?
Click the Slowed + Reverb preset. It slows the track and adds reverb; you can fine-tune the speed and export the result.
What files can I use and export?
Load MP3, WAV, FLAC, M4A and most common audio formats. Export to lossless WAV or compressed MP3.
Will changing the pitch sound natural?
We use high-quality pitch shifting with optional formant compensation, so moderate shifts of a few semitones usually sound clean. Extreme shifts can introduce artifacts.
Is there a length limit?
Files up to 10 minutes are supported in the browser. For longer files, contact us and we'll help.
Need the vocals or instrumental too?
Split any song into vocals, drums, bass and more with StemSplit — then repitch each stem.
Try StemSplit freeMore free tools