
QR codes are safe in themselves; privacy questions start at the tracking redirect. Learn which scan data counts as personal data, which legal basis applies and how to set up GDPR-compliant QR tracking.

How big should a printed QR code be? Use the 10:1 rule, a 2 x 2 cm minimum and a clear quiet zone, with size tables for cards, menus, posters and billboards.

Static QR codes lock their content into the pattern; dynamic QR codes use a short redirect you can edit and track. Here is how each works and when to use which.

A code on the pack only pays off if it opens something a label cannot. Here are the packaging use cases that earn their space, plus placement and sizing rules.

A Google review QR code takes customers straight to your 5-star dialog with one scan. Here's how to create one, where to place it, and how to stay within Google's rules.

A digital business card QR code saves your name, title, phone, and email to a phone with one scan. Learn how vCard codes work and why dynamic beats static.

Let guests join your WiFi with one scan. Learn how to create a WiFi QR code and when a dynamic one lets you change the password without reprinting.

Create a dynamic QR code menu guests scan at the table — update prices and dishes anytime without reprinting.