Learn guitar on YouTube with real-time chord diagrams—names, fingerings, and a beat-synced strip that follows the video.

SeeChords extension on YouTube: chord strip with beat blocks, chord diagrams, and controls below the video player.

Chord strip, diagrams, and controls—synced to playback.

What you get

Synced chord strip

Scrolling chord blocks locked to playback—see what to play and when.

Diagrams

SVG guitar chord diagrams for previous, current, and next chords.

Transpose & timing

Shift chords by semitones and nudge sync if the video is slightly off.

Community data

When chords exist for a video, they load instantly. You can contribute by uploading matching audio for analysis—audio is processed and deleted; only chord data is kept.