Type a link or any text, or switch to the Wi-Fi tab to make a code guests can scan to join your network. Download the result as a PNG for screens and documents, or as an SVG that stays sharp at any print size.
Codes are generated in your browser and the text you enter is never uploaded. They do not expire and there is no tracking redirect, because a QR code simply contains your text. For print, keep strong contrast (dark code on a light background) and leave the white border around it.
No. The code contains your text directly, so it works forever and there is nothing to renew.
Higher levels (Q, H) let a code still scan when part of it is damaged or covered by a logo, but make the pattern denser. Use M for most things.
PNG is fine for screens and documents. SVG is a vector format, so choose it for signs, flyers and anything printed large.