Pitch changer
Bring a song down to a key that suits your voice, match a recording to your instrument's tuning, or make a voice sound higher or deeper. Duration and tempo don't change.
Free · no sign-up · your file is processed in your browser and never sent to a server
No file handy? Try it with a 20-second Turkish meeting recording.
Other pages for this tool
How to use
- Choose your fileA song, an instrument recording or speech; MP3, WAV, M4A, OGG or FLAC.
- Set the pitchUse the slider to pick between -12 and +12 semitones. +12 is one octave up, -12 one octave down. Listen to the first 10 seconds to decide.
- Apply and downloadListen to the result; if you like it, download it as MP3 or WAV.
One tool, three controls
| Control | What changes | What stays the same |
|---|---|---|
| Speed (preserve pitch on) | Duration | How high or low the voice sounds |
| Speed (preserve pitch off) | Duration and pitch together, like tape | — |
| Pitch | How high or low the voice sounds (semitones) | Duration |
| Volume | Loudness (dB); a limiter prevents clipping | Duration and pitch |
Semitone guide
| Change | In music | Use |
|---|---|---|
| ±1 | One semitone (e.g. C → C♯) | Fine-matching an instrument's tuning |
| ±2 | One whole tone | Bringing a song into your vocal range |
| ±5 / ±7 | A fourth / a fifth | A clear change of key, harmonizing a duet |
| ±12 | One octave | Effect; very high or very deep voice |
In speech, changes beyond ±2–3 semitones start to sound artificial; for fun effects, the voice changer has ready-made presets.
Privacy: your file never leaves your device
Everything happens in your browser. Your file is not sent to Voiser's servers or stored anywhere, and it's cleared from memory when you close the tab. That's also why the tool stays fast on a slow connection.
Common questions
Does changing the pitch speed the song up?
No. The tool first stretches the audio in time and then resamples it, so duration and tempo stay the same.
How do I lower the key for karaoke?
If a song is too high for you, try between -1 and -3 semitones; listen to the first 10 seconds to find a key you can sing comfortably.
Does it affect quality?
Small changes (±3 semitones) are hard to notice. Larger changes can introduce a slight artificial quality, which is inherent to the method.
Can I change the speed at the same time?
Yes, the speed and volume controls are in the same tool; you can apply all three together.
Related tools
- Change audio speedSpeed audio up or slow it down without changing its pitch.
- Voice changerApply effects like robot, echo, telephone and radio to a recording.
- Volume boosterMake quiet recordings louder, or normalize them, without clipping.
- MP3 cutter and audio trimmerSelect any part of an audio file on the waveform and cut it out.
- Audio converterConvert files between MP3, WAV, M4A, OGG and FLAC.
Create new recordings in your own voice.
Voice cloning makes a digital copy of your voice from a short sample; have your scripts read in your own voice.