Guides9 min read
How to create a QR code: the complete guide
Choose the right type, encode it, design it without breaking it, export the right file, and test before printing. The whole process in one place.
QR code guides
Straight answers about printing, scanning and designing QR codes — written by the people who built the generator.
Comparisons8 min read
The best free QR code generators, honestly compared
Written by the people behind one of them, so read it with that in mind. What each tool does well, where each falls short, and how to spot the ones that are not really free.
Guides7 min read
QR code for Google Reviews: get the right link first
Most review QR codes point at the wrong page. How to get the direct review link that opens the star rating immediately, and where to place the code.
Printing8 min read
QR codes on product packaging: what survives the shelf
Packaging is printed once and lives for years. How to choose a destination that outlives the print run, and handle curves, foil and absorbent board.
Guides8 min read
WiFi QR codes: the complete guide
How the WIFI: format works, what breaks it, why iPhone and Android behave differently, and the security decision nobody thinks about before printing.
Guides8 min read
Restaurant menu QR codes that actually work
Where to host the menu, why PDFs frustrate customers, the table tent size that works, and the mistake that forces a reprint of every table.
Security7 min read
Are QR codes safe? Quishing, and how to not get caught
A QR code hides its destination by design, which is exactly why scammers like them. How the common scams work, and the one habit that defeats almost all of them.
Fundamentals7 min read
Static vs dynamic QR codes: which one you actually need
Dynamic codes let you edit the destination and count scans. Static codes cost nothing and cannot be switched off. Here is how to choose without paying for something you will not use.
Technical7 min read
QR code error correction: L, M, Q and H explained
What each level recovers, what it costs in density, and how to choose. Plus why "always use H" is wrong more often than people think.
Technical7 min read
How much data fits in a QR code?
The theoretical maximum is 4,296 characters. The practical maximum is closer to 300. Why the gap exists, and how to stay on the useful side of it.
Printing6 min read
SVG or PNG for a QR code? The print quality answer
Vector for print, raster for screens — and the reason is specific to how QR codes are built. Plus the DPI numbers if you have no choice.
Technical6 min read
vCard or MeCard for a contact QR code?
MeCard makes a smaller, easier-to-scan code. vCard is understood by everything. Which trade-off wins depends on how small you are printing.
Fundamentals6 min read
Do QR codes expire? The honest answer
Static QR codes never expire. Dynamic ones stop working the day the provider decides. Here is how to tell which one you have before you print 5,000 of them.
Troubleshooting8 min read
Why is my QR code not scanning? 11 causes, in order
A diagnostic checklist ordered by how often each cause actually happens — from logo coverage and low contrast to inverted colours and damp cardboard.
Printing7 min read
QR code size for print: the definitive chart
The 10:1 rule, minimum sizes for business cards, flyers, posters and billboards, plus the quiet zone and resolution numbers printers actually need.
Design7 min read
How to add a logo to a QR code without breaking it
Error correction levels explained, the 25% coverage limit, which parts of the code you must never cover, and how to test before you print.