Change Audio Pitch
Shift the key of your music or vocal tracks higher or lower without changing the playback speed. Processed securely inside your browser.
Choose an Audio file
Or drag and drop your file here
Processed securely on your device. No files are uploaded to our servers.
audio.mp3
0 MB • Orig. Duration: 00:00
Positive values raise pitch; negative lowers it.
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Loading Audio Engine
Fetching local processing core...Shifting Pitch...
Processing locally...How to Change Audio Pitch Online
Change the musical key of a backing track or lower a voice note's pitch without affecting the speed. Easily shift the pitch in three simple steps.
Upload Your Audio
Select your MP3, WAV, or M4A file. Our tool loads it securely and locally right inside your browser window without remote uploads.
Adjust the Pitch
Use the slider to shift the audio by semitones. Move it right to raise the pitch (up to +12) or left to lower it (down to -12).
Process and Download
Click to change pitch. Our engine applies a complex sampling filter, keeping the original tempo perfectly intact, and exports your MP3.
Benefits of Our Pitch Shifter
Retains Original Tempo
Most basic tools change the pitch by speeding up or slowing down the audio. We utilize a combination of sample-rate shifting and tempo correction so the song stays at the exact same BPM.
100% Private (No Uploads)
Traditional tools force you to upload personal recordings to their servers. We use WebAssembly to modify your file directly inside your browser. Your data never leaves your device.
Musical Key Adjustment
Because our slider operates in semitones, it is incredibly easy for singers and musicians to transpose a backing track into a key that perfectly matches their vocal range.
Lightning Fast Execution
Since you aren't waiting to upload a large audio file and then waiting again to download the result, the entire processing happens almost instantaneously on your machine.
Frequently Asked Questions
A semitone (or half-step) is the smallest musical interval used in Western music. For example, moving from C to C# on a piano is an increase of one semitone (+1). An entire octave consists of 12 semitones.
No. Toolszu automatically applies a secondary tempo-correction filter when shifting the pitch. This ensures your final downloaded audio file is the exact same duration and BPM as the original.
Yes, it is entirely private. Toolszu uses modern WebAssembly technology to process your audio file entirely within your browser's memory. The file is never uploaded to our servers.
You can upload a video file (like an MP4), and our engine will extract the audio track from it, change the pitch, and provide you with an MP3 audio file. It will not return a video file.
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