QR code guides & playbooks
Real advice on using QR codes in the wild: where to put them, how big to print them, what to link, and what changes once a code is dynamic. Written by the team that builds QRFLOW.codes, from real events, shops and museums, with sizes and distances you can check.

How to share Wi-Fi password on iPhone, Android, and with a sign by the door
Learn how to share Wi-Fi password on iPhone and Android, or make a printable Wi-Fi QR sign, with tips for size, testing, and updates.

Google Form QR code size, and the link that keeps working
You can turn your form link into a scannable code in about three minutes, then print it on a sign, flyer, table tent, or handout.

Venmo QR code, how it works and how to share it
Need a Venmo QR code for payments? This guide covers Venmo QR setup, sharing on phone or print, and simple checks before you accept payment.

Business cards with QR code, what to link and where
Your card has very little room. A QR code has to earn that space. The good news is that it can, if you give it one clear job and print it in a place people can actually scan.

How to create a QR code for a link fast
You can make a working QR code for any URL in under two minutes, then download it and test it before you print.

Event check-in QR codes: lines, schedules, booths and follow-up
One code per job, printed at the right size, placed where people actually pause. What first-time organizers get wrong at check-in, the booth and the exit.

QR codes for museums: where they help and where they don't
Six spots where a code helps a visitor do one clear thing, with the label sizes, mounting heights and lighting details that decide whether anyone scans it.