Free Online Audio Pitch Changer
Shift audio pitch up or down by semitones while keeping the original tempo. 100% browser-based — no upload, no watermark, no signup.
Features
Shift Pitch Without Altering Speed
Move audio up or down by semitones while the runtime stays exactly the same — no chipmunk effect, no slowdown.
Semitone Precision
Adjust from -12 to +12 semitones (two full octaves) in single-step increments.
Tempo Preserved
Duration stays identical so vocals, beats, and cues line up with the original.
Instant Preview
Listen to both the original and pitch-shifted output before you download.
Built for Music, Voice, and Learning
Transpose a backing track, create vocal effects, or slow your brain down to hear a foreign word more clearly.
Music Transposition
Move a song up or down to fit a different vocal range or instrument tuning.
Voice Effects
Create chipmunk, deep voice, or subtle vocal adjustments for podcasts and videos.
Language Practice
Shift pitch to catch pronunciation details without changing playback speed.
100% Private & Free
Audio never leaves your device. All DSP runs through FFmpeg WebAssembly in the browser.
No Server Upload
Files are processed entirely on your device — nothing is uploaded.
Lossless Processing
Output is re-encoded with high-quality resampling, preserving audio fidelity.
Works Everywhere
Chrome, Firefox, Safari and Edge — on desktop, tablet, or phone.
Loved by creators, students & researchers
Why people use BibiGPT to turn videos into text every day.
Trusted by 50,000+ users worldwide
“I paste a link and get clean captions in seconds — it saves me hours of retyping every single week.”
Maya R.
Content Creator · Repurposes short videos
“Exporting the transcript lets me review new words at my own pace instead of pausing the video constantly.”
Daniel K.
Language Learner · Studies with real videos
“Accurate, timestamped text I can quote directly. It has quietly become part of my daily workflow.”
Priya S.
Researcher · Cites public talks
FAQ'S
Frequently Asked Questions
Ask us anything!
Start Shifting Pitch Now
No signup, no download, no watermark. Just fast, free, private pitch shifting right in your browser.