Change the pitch of a video online: open an MP4, MOV or WebM file, move its sound up or down by semitones and watch the preview with the new sound in sync. The speed stays the same, the picture is copied untouched, and you download a real MP4 video. Nothing is uploaded.
Change the Pitch of Your Video
Open a video, set the pitch, watch it, download the MP4. The speed stays the same.
Processed in your browser. Your video is never uploaded.
Start here: choose a video from your device.
Your video appears here.
Video: none yet
Open a video to watch and hear it here.
Pitch of the sound
0 semitones (no change)Pick a preset or use −1 / +1.
Video speed and length stay the same.
More options fine tune, video speed, sound only
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Related tools
How to change the pitch of a video
- Open the video. Tap Choose a video or drop an MP4, MOV or WebM file on the tool (up to 15 minutes and 500 MB). The line under the player shows the size, length and sound format.
- Set the pitch. Tap a preset (octave down, −5, −2, −1, +1, +2, +5, octave up) or use −1 and +1 for any value from −24 to +24 semitones. Reset goes back to the original.
- Watch the preview. Press Play: the video plays with the shifted sound in sync. Switch Before and After at any moment to compare, and drag the timeline to jump.
- Download the MP4. Press Download MP4. A progress bar shows the sound being encoded, and Cancel stops it. The file name carries the shift, for example
lesson_-2st.mp4.
More options holds three extras: fine tuning in cents (±50), the video speed (0.5× to 2×), and a sound-only download as MP3 or WAV. A WebM video comes back as WebM; MP4, M4V and MOV videos come back as MP4.
A video pitch adjuster: pitch increaser with +, pitch reducer with −, not a pitch bender that slides one note.
Why shift video pitch? Learn tutorials in your key
The usual problem: you find the perfect guitar, piano or singing tutorial, but it is in the wrong key for your voice, your tuning or your capo. Learning in the wrong key is slow and uncomfortable, finding another version takes time, and desktop editors take far longer than a few taps.
With a video pitch changer you move the whole video into your key and keep watching the hands, the chord shapes and the lyrics at the normal speed. Most people move 1 to 5 semitones: down when a song is too high to sing, up when it sits too low. To find your key first, see what key should I sing in or detect it with the song key finder.
Real-world uses
Guitarist learning a tutorial
The teacher plays in C major and you play in D (capo 2). Shift the video +2 semitones and the sound matches your guitar while you copy the fingering.
Singer practising a song
The original key is 4 semitones too high. Shift the music video −4, sing along with the picture, and download the MP4 for daily practice. For voice recordings of your own, the vocal pitch changer keeps voices natural.
Music teacher showing keys
Export the same clip in two or three keys (for example −5, 0 and +2) and play them one after another so students hear how transposition moves every note by the same interval.
Karaoke preparation
Lower a lyric video by 3 to 5 semitones, practise at home, then use the same number on the karaoke machine: its ♭ and ♯ buttons are semitones too.
Language learning and lectures
Slow a video to 0.75× under More options: the words get clearer while the voice keeps its normal pitch. A lecture at 1.25× saves time without the chipmunk sound.
PAL pitch: films at 25 instead of 24 frames
Films shown on PAL television run at 25 instead of 24 frames per second, so they play 4% faster and sound about 71 cents higher: the “PAL pitch”. To make it, set +1 semitone and −29 cents under More options; to remove it from a PAL copy, set −1 semitone and +29 cents.
DJs and producers
Shift a performance video into the key of the track you are building to hear whether they fit, then take the sound only as WAV for your project.
Practice strategies
- Progressive learning: week 1 at 0.75× speed in your key, week 2 at 1×, week 3 one semitone higher, week 4 back in the original key and ready to perform.
- Multi-key practice: learn a song in your comfortable key (for example −5), then practise the original key, then +2 as a challenge. Changing keys builds flexibility on any instrument.
- Group harmony: make one version per section of a choir or band so everybody learns the same video in a key that suits them. The semitones-to-change-key chart gives the number for any two keys.
Video speed and pitch changer: both at once
Pitch and speed are separate here. The pitch control moves the notes and keeps the length. The speed option under More options makes the whole video faster or slower and keeps the pitch you set, so a lesson can be −2 semitones and 0.75× at the same time. The picture is not re-encoded for this either: every frame keeps its bytes and is shown for a longer or shorter time. The difference between the two ideas is explained in pitch vs tempo.
| Speed | Good for | A 4-minute video becomes |
|---|---|---|
| 0.5× | Half speed: learn a fast solo note by note | 4:00 → 8:00 |
| 0.75× | Practice tempo for a new song | 4:00 → 5:20 |
| 0.9× | A little slower, still natural | 4:00 → 4:27 |
| 1.25× | Faster lectures and talks | 4:00 → 3:12 |
| 1.5× / 2× | Skim long videos | 4:00 → 2:40 / 2:00 |
What happens to your video file
- The picture is copied, not re-encoded. Every video frame in the MP4 is byte-for-byte the frame of your file, so there is no quality loss, no new compression and no watermark. Phone videos keep their rotation.
- Only the sound is new. It is pitch-shifted with a phase vocoder (the length stays exact), then encoded as AAC at 192 kbps stereo (128 kbps mono) with your browser’s own encoder.
- Sound and picture stay in sync. The new sound is made exactly as long as the picture, and the encoder delay is corrected in the file.
- Fast: because the picture is only copied, a 3-minute video is ready in about 6 seconds on a desktop computer, much faster than tools that record the video in real time.
- Browsers: the MP4 export needs a browser that can encode audio for web pages (current Chrome, Edge and Safari). Where that is missing, the tool saves the new sound as MP3 and says so.
Music theory basics: semitones and keys
A semitone is the smallest step in Western music: one fret on a guitar, one key on a piano (black keys included). Shifting a video by one semitone multiplies every frequency by 21/12 ≈ 1.0595, and 12 semitones make an octave, which doubles the frequency (semitones explained). Moving every note by the same interval is transposition: C major → D major is up 2 semitones. For singers, the right key is the one where the highest note is not strained and the lowest note is not forced. The music key chart lists all 24 keys.
| Semitones | Interval | Frequency × | A4 440 Hz becomes |
|---|---|---|---|
| ±1 | minor second (half step) | ×1.0595 / ×0.9439 | 466.16 / 415.30 Hz |
| ±2 | major second | ×1.1225 / ×0.8909 | 493.88 / 392.00 Hz |
| ±3 | minor third | ×1.1892 / ×0.8409 | 523.25 / 369.99 Hz |
| ±4 | major third | ×1.2599 / ×0.7937 | 554.37 / 349.23 Hz |
| ±5 | perfect fourth | ×1.3348 / ×0.7492 | 587.33 / 329.63 Hz |
| ±7 | perfect fifth | ×1.4983 / ×0.6674 | 659.26 / 293.66 Hz |
| ±12 | octave | ×2.0000 / ×0.5000 | 880.00 / 220.00 Hz |
Which tool should you use?
| Tool | Use it when | Output |
|---|---|---|
| Video pitch changer (this page) | You have a video file and want the video back | MP4 (WebM for WebM) |
| YouTube pitch changer | The video plays on YouTube and you have no file | Live playback |
| Audio pitch changer | You only need the sound, in any audio format | MP3 or WAV |
| MP3 pitch changer | You have several MP3s and want MP3s back | MP3 |
| Online key changer | You think in keys (G → F) and want the key detected | MP3 or WAV |
| Pitch shifter | Harmony, octave doubling or detune effects | MP3 or WAV |
| Chord transposer | You have chords or a song sheet, not a recording | Text |
Editing the whole video in software instead? See changing pitch in Premiere Pro, in Final Cut Pro and on iPhone and Android.
Questions about changing video pitch
Does pitch shifting slow down the video?
No. The pitch moves on its own; the video keeps its speed and length unless you change the speed under More options. A 3:20 video with −3 semitones still lasts 3:20.
Can I download the video with the shifted sound?
Yes: you get a real MP4 video, not only the audio. The picture is copied from your file and the new sound is added, in sync. A sound-only MP3 or WAV is under More options.
What video formats work?
MP4, M4V, MOV and WebM, including phone videos and screen recordings, up to 15 minutes and 500 MB. MP4 and MOV come back as MP4, WebM as WebM.
What if my video is too long?
Each video can be up to 15 minutes and 500 MB. For a longer concert or lesson, cut it into parts in a video editor, shift each part with the same number of semitones and join them again.
How long does the download take?
Usually a few seconds. Only the sound is processed and the picture is copied, so a 3-minute video is ready in about 6 seconds on a desktop computer. A progress bar shows each step.
How far can I shift the pitch?
From −24 to +24 semitones (two octaves each way), plus ±50 cents. Up to about ±3 sounds natural; big shifts make voices thinner (up) or darker (down).
Does the video lose quality?
The picture does not change at all: it is copied byte for byte. The sound is encoded once as AAC at 192 kbps, the quality of most streaming video.
Can I edit or trim the video here?
No: this tool only changes the pitch of the sound (and, under More options, the speed). To cut, crop or add titles, use a video editor before or after, as in the Premiere Pro guide above.
Can I use YouTube videos?
Use the YouTube pitch changer (see Related tools): it changes the pitch while the video plays, without downloading it. This page is for video files you own or have the right to use.
Is it free, and is my video uploaded?
It is free, with no sign-up, no watermark and no limit on how many videos you change, and your video is never uploaded. Your browser does the work on your device, so the file never leaves it.
Tested: what we measured
- 18 exported videos checked with a separate media analyser: every video frame byte-identical to the source file (MD5 per frame).
- Sound pitch within 0.1 cents of the target (440 Hz +3 semitones → 523.25 Hz), and sound length equal to the video length within one frame.
- Sync: short clicks placed on white frames stayed on those frames after the shift (within 1 ms).
- Opened and exported: MP4 (H.264 and H.265), fragmented MP4 screen recordings, MOV phone video with rotation, WebM (VP8, VP9); every MP4 and WebM played to the end in Microsoft Edge.
Last updated 28 September 2026 by Mayer. More tools on the online pitch changer home page; how we test: how it works.