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Guides to QR codes you can change later
Plain, practical writing on getting QR codes right: which kind to use, how to track them, and how to keep a printed code alive long after the first link changes.
When free QR codes stop working
A free QR code stops working three ways: a trial ends, a scan cap pauses it, or a subscription lapses. How each provider handles it, and how to check yours.
How big should a QR code be?
QR code size follows a simple 10:1 rule: a code needs about 1 inch of width for every 10 inches of scan distance, plus a quiet-zone margin.
QR codes for real estate signs and listings
Real estate QR codes only pay off when they're dynamic: point a yard sign at the live listing, then repoint it to sold without replacing the sign.
11 ways small businesses use QR codes
Eleven practical QR code ideas for small businesses, from menus and yard signs to packaging and event check-in, each one a code you can repoint later.
QR code best practices before you print
A pre-print checklist for QR codes: make it dynamic, size it for scan distance, leave a quiet zone, keep contrast high, and test it on a real phone first.
QR code tracking: how scan analytics work
Tracking only works on a dynamic QR code, because the redirect does the measuring. What each metric means, how precise it is, and what scans cannot tell you.
QR codes for restaurant menus
How to put a menu behind a QR code: what the code should open, how big to print it on a tent or window, and how to change the menu without reprinting anything.
How to change a QR code after it's printed
You can change where a printed QR code points only if it's a dynamic code. Here's how to repoint one in seconds, and what to do if you printed a static code.
Static vs dynamic QR codes: how to choose
Static QR codes bake the link into the image and can never change. Dynamic codes redirect through a server, so you can repoint them after you print.
Best free QR code generators in 2026
Most 'free' QR code generators make static codes you can't change, then charge to make them dynamic. Here's what to look for and how the options compare.
How to make a QR code for a flyer
How to put a QR code on a flyer: make it dynamic, size it for where the flyer ends up, keep the quiet zone, and test the proof before the print run.
QR code answers
Quick fixes to the common problems: why a code won't scan, what to do when one stops working.
Free QR tools
Generate, check, and size QR codes in your browser. No signup.