This site has info about QR capacity: https://www.qrcode.com/en/about/version.html https://www.qrcode.com/en/about/version.html Edit: this is probably the best

This site has info about QR capacity: https://www.qrcode.com/en/about/version.html https://www.qrcode.com/en/about/version.html Edit: this is probably the best answer though… https://news.ycombinator.com/item?id=32461230 https://news.ycombinator.com/item?id=32461230 or the microfiche suggestion… https://news.ycombinator.com/item?id=32462466 https://news.ycombinator.com/item?id=32462466