Capo

What it does

Change the pitch, key, speed, and volume of any audio or video directly in your browser. Works with YouTube, Spotify Web, SoundCloud, Bandcamp, podcasts, audiobooks, lectures, and more. Transpose songs, slow down without changing pitch, boost quiet audio, and loop difficult sections. Perfect for musicians, singers, students, and anyone who wants more control over online audio.

Free Chrome extension to change the pitch, key, speed and volume of any audio or video — transpose a song, slow it down to learn it, or speed up a lecture. Works on YouTube, Spotify and SoundCloud, processed entirely on your device.

Transpose a song to your range, slow the hard bar down and loop it, or speed up a lecture — right on YouTube, Spotify Web, SoundCloud or any other tab. Everything runs on your device, nothing is uploaded. Capo splices a real audio engine into the page and gives you direct control — no downloads, no re-encoding, no waiting. Transpose a whole performance up or down by twelve semitones, in single steps — capo a song to sing along, or drop it to match the instrument in your hands. No warble, no chipmunk. From a quarter-speed practice tempo up to triple-time, the pitch stays exactly where you put it. Learn a lick by ear, or get through a lecture in half the time. Fig. 1 — the popup,…from capotune.com

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