Raise or lower a song in semitones, or speed it up and slow it down, right in your browser. Free, no sign-up, no watermark, and your file never leaves your device.
Choose a song from your phone or computer: an MP3, WAV or M4A file, or an MP4 or MOV video, in which case the pitch changer uses its soundtrack. The file opens in your browser in a few seconds, and the pitch changer shows the key it detects. That reading is an estimate, so it shows the song's relative key next to it (C major and A minor, for example, use the same notes).
Press +1 or −1 to move the song a semitone at a time, or drag the key slider for bigger jumps; the new key appears as you go. Press play and you hear the change straight away, before you save anything.
When it sounds right, download the new version as an MP3, or as a WAV file if you're going to record or mix over it. A four-minute song usually takes a few seconds to save on a laptop, depending on the machine.
A pitch changer, also called a key changer or pitch shifter, moves every note of a song up or down by the same amount. The steps are semitones: one semitone is the distance from one piano key to the next, and twelve semitones make an octave, so the key slider runs from −12 to +12.
Changing the key leaves the length and the tempo alone. A three-minute song is still three minutes long, and a song at 120 BPM is still at 120 BPM after you move it down two semitones.
Transposing on paper works the same way. Move a song in C major up two semitones and it's in D major, so a guitarist plays D, G and A where the chord chart says C, F and G.
Start in the original key and sing the chorus, where most songs reach their highest notes. If the top notes feel strained, lower the key by one to three semitones. If the low parts sound weak or breathy, raise it. Recording yourself and listening back makes it easier to hear which key works.
A song by a singer with a different voice type usually needs a bigger move. A common rule of thumb from voice teachers: men singing a song by a female singer often go down four to six semitones, so try −5 first; women singing a song by a male singer often go up three to five, so try +4.
If your voice teacher has already picked a key and every recording you can find is in another one, count the semitones between the two: from E down to D is two, so set the key to −2. The new key shown next to the slider tells you when you've landed on it.
The speed slider runs from 50% to 150%, and it never changes the key, so a guitar, bass or piano part still matches your instrument while you work it out. Many musicians learn a hard passage at 50 to 75% of the speed and bring it back up in steps. Slowing down is free, like everything else here. Slow a song down a long way, to around 80% or below, and you may hear a slightly metallic tone; that's the trade-off for keeping the key exactly where it was.
The tempo changes in proportion to the speed. A song at 120 BPM played at 80% runs at 96 BPM and takes a quarter longer. If you need a set tempo, for a dance routine or a click track, find the song's BPM first with the BPM finder and work out the percentage from there.
You can move both at once, for example to slow a song down and drop it a semitone to play along on a guitar tuned a half step down.
Plenty of songs have no karaoke version, and the ones that do are often in the original key. To sing over a song in your own key, you need the instrumental first. The Voice Remover takes the vocals out of a song and gives you the instrumental as an MP3; it gives you one free song a day, or two when you sign in, and this uses one of them. On the result, choose Change the key, and the instrumental opens here ready to move into your range. Changing the key doesn't use up a free song. An instrumental made from a commercial song is best kept for practice and singing at home; before you post a cover over it, check what the song's rights holders allow.
If you already have a karaoke track or an instrumental, open it here directly. The pitch changer moves the whole track, so it can't change the key of one instrument and leave the rest.
Singers use it most: to bring a song into their range for karaoke, a choir part or a cover, or to match the key a teacher has picked. Musicians slow songs down to learn a solo, or shift them to match an instrument tuned differently. Dancers and coaches slow music down to teach a routine. Language learners slow speech down without the voice turning into a chipmunk. Transcribers slow a passage to hear every note.
This online pitch changer runs inside your browser. Your file is read and changed on your own device: it isn't uploaded to our servers, and we don't keep a copy. Because nothing runs on our side, there's no daily limit, no watermark and no account to create. Songs up to 10 minutes long can be opened; on older phones, long WAV or video files may be slow to load.
Download an MP3 to listen and practice: it's small and plays on any phone, laptop or speaker. Choose WAV if you're going to record a vocal over the track or mix it in a recording app. Every time a song is saved as an MP3 it loses a little detail, so working from a WAV keeps the quality from dropping each time you export.
If you started from an MP3, a WAV download won't bring back what the MP3 left out; it just stops the quality from dropping any further.
Remove the vocals from a song and keep the instrumental.
Get clean vocals (acapella) from any song.
Remove the music from a video or recording and keep the voices.
Upload a song or video and get six separate tracks: vocals, drums, bass, guitar, piano and other instruments.
Choose a song file and see its BPM and key in a second or two, or tap along to the beat.
Upload a song or video and get an MP3 with the vocals taken out, plus the vocals as a separate file.