A QR code is most helpful when it removes one small obstacle: opening care instructions, viewing an assembly video, returning to a product page or joining a guest Wi‑Fi network. Give each code one clear job, rather than sending people to a confusing collection of links.
Choose stable content before you generate the code
Use a web address that you expect to keep working, a support email, a phone number or a concise instruction page. Avoid temporary links, pages that require a personal login, and URLs you may soon rename. A printed code cannot be edited after it is shipped.
Useful places for makers and sellers
Add a code to an Etsy package insert, care card, assembly guide, product label, portfolio card, workshop sign or event display. A code can open a product guide while the printed card still explains in plain text what the buyer will get after scanning.
Wi‑Fi codes need a privacy check
A Wi‑Fi QR code contains the network name and password in a format a scanner can read. Use it for a guest network or a controlled private setting. Do not print it publicly if sharing the password would give unwanted access to your main network.
PNG or SVG?
Choose PNG for a listing image, message, document or raster editor. Choose SVG for a sharp vector layout, print design or laser workflow. SVG keeps hard edges at different sizes, but neither format can repair a code that is too crowded, low-contrast or distorted.
Keep the quiet border and test the final item
Leave a clean, empty border around the code. Place it on a high-contrast background and do not stretch it into a rectangle. Scan the exported file with a phone, then scan one real printed or engraved test at the final size. This final test matters more than a preview on a bright monitor.