How to Change the Pitch of Any Song or Video

Changing the pitch of a song means moving every note up or down by the same interval, so the music lands higher or lower while keeping its shape. Capo does this to whatever is playing in your browser tab — up or down by up to twelve semitones, in real time, and without speeding the track up or slowing it down.

Raise or lower the pitch without the chipmunk effect

Most "change pitch" tricks simply play the audio faster to raise the pitch, which leaves voices squeaky and music out of time. Capo doesn't work that way. It treats pitch and speed as two independent dials, so you can lift a track a few semitones — or drop it a full octave — while the tempo holds steady and everything still sounds natural.

Because it processes the page's own audio live, there's no file to export and re-import. Open a tab, nudge the pitch, and you hear the change instantly.

Where you can change the pitch

Capo works on any HTML5 audio or video element, which is to say almost everything:

• YouTube videos, music and live sets
• The Spotify Web Player, SoundCloud and Bandcamp
• Podcasts and lecture players
• Any site with an embedded <video> or <audio> element

If you want a track in a genuinely different key to sing or play along with, that's transposing a song — same dial, musical framing.

How to change the pitch of a song

1. Add Capo to Chrome or Firefox — it's free and takes one click.
2. Open it on any tab while something is playing.
3. Turn the pitch dial up or down to the semitone you want (−12 to +12).
4. Capo saves the setting per URL, so the page sounds the same the next time you visit.

A note on semitones

One semitone is the smallest step on a piano — the distance from one key to the very next, black or white. Twelve of them make an octave. So +12 plays the song a full octave higher; −1 nudges it down a half step, which is exactly enough to match a guitar tuned down to E♭. Working in whole semitones keeps everything musically in tune, rather than drifting between keys.

If you're slowing a passage down to learn it as well as shifting its key, you can slow it down at the same time — the two controls are completely independent.