QRLynx Blog
QR Code Guides, Tips & Best Practices
Free QR Code Check-In System with Google Forms
Build a free QR code check-in system with Google Forms and Sheets. Compare named attendance, check-in and out, and scan analytics, then test the workflow.
How to Create a Google Forms QR Code with QRLynx
Publish a Google Form, copy its responder link, and create a tested static or dynamic QR code in QRLynx with access, analytics, print, and testing guidance.
QR Code vs Barcode: Key Differences Explained
Compare QR Codes with 1D barcodes by capacity, scanning, error correction, phone use, web links, and GS1 retail requirements before choosing a carrier.
Pix QR Code Payments: Static vs Dynamic Setup
Learn how Pix QR payments work, when to use a static or dynamic code, how to create a reusable BR Code Pix QR, and how to verify each payment safely.
Email QR Code: Create a Pre-Filled Mailto QR
Create an email QR code that opens a pre-filled draft with a recipient, subject, and message. Learn mailto formatting, limits, testing, and safer alternatives.
How to Create a WhatsApp QR Code with Scan Tracking
Create a tracked WhatsApp QR in QRLynx, test the wa.me link and prefilled message, separate scan data from chat results, and verify the printed code.
How to Create a PDF QR Code and Replace the File Later
Create a PDF QR code in QRLynx, choose the right document-hosting path, replace the PDF without reprinting, test the scan, and measure the result correctly.
QR Codes for Product Packaging (2026 Guide)
Plan QR codes for product packaging with accurate DPP, GS1, bulk CSV, analytics, sizing, material, and print guidance for boxes, bottles, and pouches.
QR Codes for Teachers: Classroom Activities, Safety, and Setup
Create classroom QR codes with QRLynx for learning stations, worksheets, family updates, and accessible resources, with practical privacy and testing guidance.