The Dead Link Disaster: When Two Hundred Campus Posters Stopped Working in a Fortnight
What happens when a free QR service expires the link on a printed poster, and how a static QR code maker keeps every code permanent, offline and untracked.
Turn a block of notes, an address or a long code into a scannable QR code. Choose the size and colours, then download a crisp PNG or a scalable SVG.
What happens when a free QR service expires the link on a printed poster, and how a static QR code maker keeps every code permanent, offline and untracked.
A comfortable amount for a note, an address or a serial number, and the tool warns before the payload outgrows the error correction level you picked. Dense text needs a lower correction level or a larger printed size, which the size control sets.
Almost always contrast or size. Keep the code dark on a light background, leave the quiet margin alone, and print it large enough that the modules are at least a millimetre across. Error correction at level M survives a slightly imperfect print.
No. The PNG is flat pixels and the SVG is vector paths, with nothing added and nothing that phones home, so a code printed today keeps working and stays yours. The whole operation runs inside your browser tab; the file is never uploaded, so nothing is stored or logged.