QR code guides
Everything we have learned about making codes that scan — written for the person who has to print something, not for a standards committee. Five guides, no filler.
In-depth guides
Why QR codes fail to scan
The four causes behind almost every failure — contrast, margin, density and logo coverage — plus how to diagnose which one you have.
How big should a QR code be?
The 10:1 rule, a table of real-world print sizes, and what changes when the code carries a lot of data.
Design that still scans
Colours, gradients, rounded modules and logos — what is safe, what is risky, and why round dots cause more trouble than they are worth.
Which code type do you need?
One question decides it. Then a reference for all eleven types, including the four that work with no internet connection at all.
Security and privacy
What a code reveals to anyone who scans it, why static beats short links for privacy, and the sticker scam to watch for.
Use-case pages
Wi-Fi QR codes
Guest networks, one-tap joining, and an honest look at what putting a password in a code does and does not protect.
Contact card codes
Why fewer fields make a better business card, and how to choose what to leave out.
Link codes, static vs dynamic
The subscription trade-off explained plainly, and when a dynamic code is genuinely the right call.
Not sure where to start?
The generator explains every setting in plain language, and flags anything that would stop a phone reading your code.
Advertising is on this website only. The guides you are reading are funded by adverts shown on the page — but that has no bearing on any code you make. Every code you generate is free and ad-free: no advert, no tracker and no redirect is ever placed in it. How that works, and how to verify it.