About PitchChanger.io
Free, private, browser-based audio pitch and speed shifting
Why I Built This
Hi 👋, I'm David Choi — singer, songwriter, and founder of CHOISMUSIC.
As a musician, I've spent countless hours needing to transpose songs for different vocal ranges, slow down tricky passages to learn them, or match keys for collaborations.
So I built PitchChanger.io — a tool I actually wanted to use myself. It's fast, it's free, and most importantly, your files never leave your device. Everything processes right in your browser. No uploads, no waiting, no privacy concerns.
Whether you're a singer adjusting a backing track, a guitarist learning a solo, or a teacher preparing materials for students, I hope this tool helps you the way I wished something like it existed years ago.
Supported Audio Formats
PitchChanger.io supports all common audio formats that modern web browsers can decode:
Files up to 250MB are supported. Exported files are saved as high-quality WAV format to preserve audio fidelity.
Our Privacy Commitment
Your files stay on your device. Always.
We take privacy seriously. When you use PitchChanger.io, your audio files are processed entirely within your web browser using JavaScript. No audio data is ever uploaded to our servers. This means:
- No file uploads to external servers
- No storage of your audio on our systems
- No third-party access to your files
- Instant processing without upload/download wait times
Read our full Privacy Policy for more details.
Free & Ad-Supported
PitchChanger.io is completely free to use. We're able to offer this service at no cost through advertising support. The ads you see help cover our hosting and development costs, allowing us to keep this tool accessible to musicians and creators around the world.
Ready to get started?
Try PitchChanger.io Free →