Three simple steps
How to change the key of audio
- 01
Choose a supported audio file from your device. The file stays in your browser and is not uploaded to ToolYogi.
- 02
Move the semitone slider from −12 to +12 or use a quick preset. Positive values raise the key; negative values lower it.
- 03
Process the audio, preview the shifted result and download the WAV file.
What does a semitone shift mean?
One semitone is one step on the chromatic scale. Moving +2 semitones raises every pitched note by a whole tone, while −12 semitones lowers the audio by one octave.
Does the tempo change too?
The current processor is designed to shift pitch while preserving overall duration rather than simply changing playback speed. Small to moderate shifts usually sound more natural than extreme octave-sized changes.
What works best?
Vocals, stems, samples and relatively clean music generally work well. Dense mastered mixes, heavy reverb and extreme shifts can create phase, transient or timbre artifacts.
Does ToolYogi upload my audio?
No. Audio decoding, pitch processing and WAV generation run locally in your browser. ToolYogi does not create a cloud copy or conversion history for this tool.
A little more clarity
Frequently asked questions
Is the Pitch & Key Shifter free?
Yes. You can shift supported audio files without creating an account.
Can I change a song from one key to another?
Yes. Choose the number of semitones between the original key and your target key. For example, moving from C to D is +2 semitones.
Can I shift vocals only?
Yes. Isolated vocal stems are a common use case. You can first extract vocals with ToolYogi Vocal Remover or Stem Separator, then pitch-shift the vocal stem.
Does pitch shifting affect audio quality?
It can. Any time-stretch or pitch-shift algorithm may introduce artifacts, especially with large shifts or dense mixes. Smaller changes usually sound more natural.
What format is downloaded?
The processed result is exported as a stereo WAV file.
Is my audio stored?
No. This tool processes the selected audio locally in the browser and does not upload or store it on ToolYogi servers.
Open-source local processing
Pitch shifting uses the MIT-licensed @audio/shift project. The processing runs in the browser and ToolYogi does not upload the selected audio for this tool.