Audio & Video Pitch Shifter

A pitch shifter is a tool that raises or lowers the pitch of a recording without changing its speed. Upload an audio or video file, drag the Hz slider, and every note in the track shifts up or down together — the melody keeps its shape and the tempo stays identical. KeyPitch runs the pitch shift directly in your browser, with a real-time preview, so you hear the new pitch before you download anything.

Upload your MP3 or WAV file to KeyPitch, drag the Pitch (Hz) slider — below 440 Hz to shift the pitch down, above 440 Hz to shift it up — and listen to the result instantly. When it sounds right, click Download: your pitch-shifted file opens in the KeyPitch Audio Studio, where you can fine-tune the shift and export as MP3 or WAV.

Yes — this pitch shifter accepts video too. Upload an MP4 (or M4A audio) and KeyPitch shifts the pitch of the soundtrack while the picture keeps playing in sync in the preview player. It is the simplest way to pitch shift a music video, a recorded concert, a dance clip or a lesson video — no separate audio-extraction software needed.

No. Old-school methods — speeding up a tape or a vinyl — shift pitch and tempo together. A modern pitch shifter separates the two: KeyPitch uses time-stretching algorithms (SoundTouch) to move the pitch while the speed, the timing and the length of your file stay exactly the same. Want to change pitch and speed together? Use the KeyPitch Pitch & Speed Changer.

Hz (hertz) measures frequency — how high or low a sound is. 440 Hz is the international tuning standard for the note A4: that is where your file is unchanged. Drag below 440 Hz and the whole track shifts down in pitch; drag above and it shifts up. The slider runs from 415.3 Hz to 466.2 Hz — exactly one semitone down to one semitone up.

The Hz slider on this page covers one full semitone in each direction — perfect for precise shifts like retuning a track from 440 Hz to 432 Hz. Need more? Click Download: your file opens in the KeyPitch Audio Studio, where the Semitones control pitch shifts up to ±12 semitones — a full octave up or down.

Shifting the pitch down makes a track sound deeper, darker and more relaxed. Popular uses: retuning music from 440 Hz to 432 Hz for a warmer feel, dropping a song that sits just above your vocal range, making a voiceover sound deeper, or building slowed-style edits. Drag the slider to 432 Hz or all the way down to 415.3 Hz (−1 semitone) and preview the difference.

Shifting the pitch up makes a track brighter and more energetic. Singers raise backing tracks that sit too low, producers lift instrumentals to add sparkle, and nightcore-style edits push the pitch up sharply. This slider goes up to 466.2 Hz (+1 semitone); for the full nightcore effect — higher pitch plus faster speed — try the KeyPitch Speed Up tool, or go up to +12 semitones in the Audio Studio.

Yes — a pitch shifter works on any audio: full songs, isolated vocals, podcasts, voiceovers and sound effects. Shift a voice down a little to make it deeper and more authoritative, or up to make it lighter and brighter. Keep voice shifts subtle (from a fraction of a semitone to about ±2): the further you shift, the more processed the voice starts to sound.

Absolutely — that is one of the most common uses. Upload the song or backing track, shift the pitch down if the original is too high (or up if it is too low), preview while you sing along, and download once it sits comfortably in your range. The tempo does not move, so the track stays perfectly usable for practice and performance.

Yes — install the KeyPitch Chrome Extension. It adds a pitch shifter panel directly on YouTube, so you can shift the pitch of any video in real time, in semitones, without downloading anything. Perfect for practising along with official music videos, karaoke channels and backing tracks.

They are closely related. Transposing means moving a song to another musical key in semitone steps — which is exactly what a pitch shift of ±1, ±2 or ±3 semitones does. The Hz slider on this page covers fine shifts within ±1 semitone; for clean key changes in whole semitones, use the KeyPitch Key Changer or the Semitones control in the Audio Studio.

Small shifts — anything within this slider's one-semitone range — are virtually transparent. Larger shifts applied in the Audio Studio can introduce mild artefacts, especially on vocals beyond ±5 or ±6 semitones. KeyPitch uses high-quality time-domain processing (SoundTouch) to keep the sound clean — for the best result, start from a WAV or a high-bitrate MP3.

KeyPitch accepts MP3, WAV, M4A and MP4 files up to 50 MB and 10 minutes long. Audio and video go through the same Hz slider, and the preview keeps video playing in sync with the shifted sound. From the Audio Studio you can export your pitch-shifted track as MP3 or WAV.

Yes. You can upload a file, pitch shift it and preview the result for free. The full Audio Studio adds extra controls — semitone shifting up to ±12, speed change, reverb, bass boost, 8D audio and more.

The relationship is logarithmic: frequency = 440 × 2^(semitones/12). One semitone up from A4 = 440 Hz lands at about 466.2 Hz, and one semitone down at about 415.3 Hz — exactly the range of this slider. A shift to 432 Hz is roughly a third of a semitone down; 444 Hz is about a sixth of a semitone up. For shifts of ±2 semitones and beyond, use the Semitones control in the Audio Studio.