QR Code Guides
Plain-English guides to how QR codes work — and how to use them well.
What Is a QR Code?
A plain-English explainer on what a QR code is, how it works, what it stores, and where it’s used. Free guide from QRForge.
QR Error Correction Levels Explained
Understand QR code error correction levels L, M, Q and H — how much damage each tolerates and when to use which. Free guide from QRForge.
Types of QR Codes and What They Encode
A guide to the common QR code content types — URL, text, WiFi, vCard, SMS, email, event — and when to use each. Free guide from QRForge.
Static vs Dynamic QR Codes
The difference between static and dynamic QR codes, and the pros and cons of each. Free guide from QRForge.
QR Code Size Guide
How big should a QR code be? A practical size guide: the 1/10 scan-distance rule, minimum sizes by use case (business card, poster, screen), module density, and error-correction guidance. Free guide from QRForge.
QR Code Best Practices
Practical best practices for scannable QR codes: sizing for print vs screen, quiet zone, error-correction choice, contrast and lighting, logo embedding, and common pitfalls. Free guide from QRForge.