QRコード

https://idy.vercel.app/q/https://scrapbox.io/suto3#.png

https://qr.kobakazu0429.workers.dev/api/v1/qr.png?text=https://scrapbox.io/suto3&type=png

https://api.qrserver.com/v1/create-qr-code/?size=160x160&qzone=4&data=https://example.com/#.png