Observed arrival · 2026-09-30

Chord Lens puts a YouTube song’s chords on the beat

chordlens.app Visit website

Editorial interest 83/100 Selection signal · not a rating of the site

This free Chrome extension presents synchronized chords and lyrics for YouTube videos, with controls for instrument, key, tempo, and song sections.

Landing page captured for the 2026-09-30 issue.

For: Guitar, ukulele, mandolin, and piano players learning songs
Worth noticing: The page says stem separation runs on the user's device and requires a browser with WebGPU; the extension sends the video ID, not audio.

Field notes

The page describes a Chrome extension that pairs a YouTube video with a synchronized chord sheet; the sheet can open beside the video or in Chrome’s side panel, and bars can jump playback to a chosen point. Chords are drawn for guitar, ukulele, mandolin, or piano, with capo positions from frets 1–12. The page says stem separation runs on the user's device and requires WebGPU; lyrics and section labeling are marked beta.

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○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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