Guide cluster

fundamentals

How to make a QR code, static versus dynamic, error correction, data capacity, and the anatomy of the pattern. ISO/IEC 18004 still applies here.

Anatomy of a QR code

Anatomy of a QR code: three finder squares, a four-module quiet zone, timing lanes, and a payload region that starts at version 1 as 21×21 modules.

How QR codes work: a camera finds three nested squares, samples a grid from 21×21 modules upward, then opens bytes or follows a hosted short URL.

How to make a QR code: pick hosted or static first, export SVG or 300 dpi PNG from SmartQRCode, then proof-scan at the real viewing distance.

How to make a QR code for a Google Form: paste the Send-tab view URL into a hosted type so you can swap the live form without reprinting paper.

How to make a QR code for a link with a hosted SmartQRCode URL, or a static string when the print must survive with no provider at all later.

How to make a QR code for a website: generate a hosted URL type in SmartQRCode, download SVG or PNG, and proof-scan at the real viewing distance.

QR code data capacity grows with version from 21×21 to 177×177. Long static URLs and higher correction both densify the same millimetre print.

QR code error correction is L, M, Q, or H (about 7 to 30 percent restored). Higher levels survive damage and densify the same millimetre grid.

Static vs dynamic QR codes: static stores the payload in the modules; dynamic stores a hosted URL. Wi-Fi stays static. Canva is usually static.

What is a dynamic QR code: the modules store a hosted URL you can retarget later. Static stores the payload. SmartQRCode Wi-Fi stays static.

Pick a type, brand it, and edit the destination whenever you like — even after it is printed.