Handle or channel ID? Encode the right YouTube link
YouTube channels have two addresses: the modern @handle (youtube.com/@yourname) and the old channel ID URL, a 24-character string nobody can read or remember. Always encode the handle. It's shorter, which makes the QR code less dense and easier to scan from a distance, and it's the address YouTube itself now promotes.
Density is the practical reason this matters. A QR code grows as the link gets longer, and a denser code needs either more print size or a closer camera. A handle URL typically fits in a small, chunky code that scans across a room — a channel ID URL doesn't.
QR codes shine at the exact moments YouTube links usually fail: an end screen someone is watching on a TV, a printed insert in a product box, a poster at an event, a slide at a meetup. In all of those, typing a URL isn't realistic and a scan takes a second.
One caveat: encode the channel, not a single video, unless the code is for a one-off campaign. Channel codes stay useful for years; a code pointing at one video is dead the moment that video is replaced.