Audio Pitch Shifter

-12 semitones (one octave down) to +12 semitones (one octave up).

WAV (16-bit PCM). This is lossless and compatible with all audio editors.

Yes, the Audio Pitch Shifter is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.

Absolutely. The Audio Pitch Shifter processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the Audio Pitch Shifter is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the Audio Pitch Shifter in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The Audio Pitch Shifter works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

Pitch and speed are two separate sliders here, but by default they are physically linked. Shifting pitch by semitones changes how high or low the audio sounds, while changing playback speed makes it play faster or slower. The catch is that browser audio raises pitch by speeding the file up and lowers it by slowing it down, exactly like a tape or record. So with the default behavior, pitching a clip up two semitones also shortens it slightly, and slowing it to 0.5x speed drops the pitch an octave. If you only want to change one without affecting the other, enable the Preserve pitch toggle, which uses the browser's detune for pitch and a separate playback rate for tempo. Load a file and move the two sliders to hear how each one behaves before you download.

This happens because standard Web Audio in the browser changes pitch and tempo together: it speeds the file up to make it sound higher and slows it down to make it sound lower, the same way a vinyl record played fast sounds like a chipmunk. With the Preserve pitch toggle off, that coupled behavior is exactly what you get, so a 2x speed setting roughly doubles the perceived pitch and 0.5x roughly halves it. To break that link, turn Preserve pitch on; the tool then applies pitch with detune and tempo with playback rate so you can move one slider without dragging the other along. This approximation works well for modest shifts and quick previews. For broadcast-grade independent control you would need a phase vocoder. Try both modes on your own clip to see which fits your edit.

It can approximate that, but it is honest about the limits. With the Preserve pitch toggle enabled, the tool uses the browser's detune parameter for pitch and a separate playback rate for tempo, letting you nudge pitch while leaving speed roughly intact. That is great for small shifts and fast previews. However, the Web Audio API does not include a true phase vocoder, which is what professional software uses to move pitch while keeping tempo perfectly locked, so large shifts can sound less natural. For studio-grade results the tool points you to two proven routes: the SoundTouch.js library, or an FFmpeg command combining asetrate and atempo. Knowing this up front saves you from expecting flawless time-stretching from a one-page utility. For most social clips and quick voice tweaks, the built-in Preserve pitch mode is enough. Load a file and test it before exporting.

You can drop in MP3, WAV, OGG, or M4A files, and the tool decodes them locally using your browser's Web Audio API. As soon as a file loads, it reads the duration, file size, channel layout (mono or stereo), and sample rate, then shows a live estimate of the output length and effective playback rate as you adjust the sliders. Because decoding happens on your device, nothing is uploaded, which keeps unreleased tracks, voice memos, or client audio private. If a file fails to decode, converting it to MP3 or WAV first is the most reliable fix, since those are the most widely supported formats. Whatever you put in, the processed result is always exported as a lossless 16-bit PCM WAV that opens in every major editor. Upload your clip and the details panel will confirm exactly what the tool detected.

For a high, chipmunk-style voice, load your clip and drag the pitch slider upward toward +12 semitones; for a deep, slowed voice, drag it down toward -12. Leave the Preserve pitch toggle off so pitch and tempo move together, which gives the classic sped-up or slowed-down character that makes the effect sound convincing rather than processed. Smaller shifts of three to six semitones disguise a voice subtly, while the extremes produce cartoonish meme and reels audio. Use the in-browser preview to audition the setting before committing, since the right amount depends on the original voice. When it sounds right, export the result as a WAV; the download is named after your original file with the shift baked into the suffix, like track_+7st.wav, so you can tell variants apart. Open the tool, load a voice clip, and slide the pitch to taste.