Guides & Tutorials
QR Code Guides
Everything on this site is a tool you can use right now — and these guides explain how to use it well. Each article is written from hands-on experience: clear enough for a first-time user, detailed enough for someone running a business. Browse the library below, or head straight to the generator if you already know what you need.
Latest guides
How to Create a QR Code: A Step-by-Step Guide
New to QR codes? This is the place to start. Learn exactly how to generate a QR code for a link, text, or Wi-Fi network, download it as a PNG, and make sure it scans first time.
Wi-Fi QR Codes Explained: Share Your Network Without Saying the Password
A Wi-Fi QR code lets guests join your network with a single scan. Here's how the format works, how to create one safely, and when you should (and shouldn't) share it.
How QR Codes Work: The Technology Under the Squares
What is actually inside a QR code? From the three corner finder patterns to Reed–Solomon error correction, here's how a pattern of squares stores real data.
QR Codes for Restaurants: Menus, Ordering, and Marketing That Works
From contactless menus to table ordering, QR codes changed how restaurants operate. Practical setup advice, design tips, and mistakes that hurt your customers' experience.
QR Code Printing Best Practices: Make Codes That Scan First Time
Size, contrast, quiet zone, materials, and testing — the practical checklist that separates a QR code that scans instantly from one that fails at the checkout counter.
QR Code vs Barcode: What's the Difference and Which Should You Use?
One holds a dozen digits, the other holds an entire URL — and the choice affects scanning hardware, capacity, and durability. A clear comparison with a quick-reference table.
QR Code Scams and "Quishing": How to Scan Any Code Safely
QR codes hide their destination until scanned, and criminals exploit exactly that. Learn how QR-based phishing works, what to check before opening a link, and how SajiloQR helps you stay safe.
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