Capo ▲▼ pitch ▹ speed ▲▼ volume

Transpose pitch & cents · playback speed · volume — for any webpage audio or video

Capo sits in your toolbar and re-tunes the audio of anything that plays in your browser. Open it on YouTube, Spotify Web, SoundCloud, Bandcamp, or anywhere else music or video plays, and three controls appear: • Pitch — transpose ±12 semitones, with ±50 cents of fine-tune for the in-between notes. Tempo stays the same. • Speed — 0.25× to 3× playback. Pitch stays the same. • Volume — up to 300%, so you can lift quiet sources above your system's ceiling. The popup also gives you transport controls — play/pause, skip back/forward, restart, and a scrubbable timeline — so you don't need to leave it to step through a track. Settings stick per page. Tune a song once and Capo will re-apply the same pitch, speed, and volume the next time you open it. Local by default. Your settings are stored on your device. Capo does not collect listening history, URLs, or audio. Anonymous product diagnostics are opt-in and can be turned off at any time. Available in 11 languages: English, Spanish, Portuguese (Brazil), French, German, Japanese, Simplified Chinese, Korean, Russian, Hindi, and Arabic.