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QR Code Knowledge for Practical Use

Current guides to WiFi QR codes, print quality, barcode standards, Excel workflows, tracking and campaigns.

Guest scans a WiFi QR code at a modern reception desk
New · WiFi

How to Make a WiFi QR Code: Complete Guide

Enter the SSID, security and password correctly, test on iPhone and Android, and share guest access more safely.

Printed QR code labels in several sizes being tested with a smartphone
New · Print

How to Print a QR Code: Size & Quality Guide

Practical dimensions, quiet zone, SVG versus PNG, error correction and a reliable print preflight.

QR code on a business card with smartphone scan and contact page
Business cards

QR Codes on Business Cards: vCard, Website and Design

When to use a vCard, website or contact page and how to handle print size, design and scan testing.

Smartphone scanning a QR code with examples for menu, product, ticket, PDF, location and analytics
Use cases

What are QR codes good for? Practical use cases

The most useful QR code applications: websites, PDFs, menus, locations, events, products and measurable campaigns.

Smartphone map with GPS coordinates and a location QR code card
Location

How to Find GPS Coordinates: The Complete Guide

Find coordinates, read them from Google Maps, understand formats and turn them into a location QR code.

Code 128 barcode with scanner and logistics dashboard
Barcode

Code 128 Explained: Structure, Uses & How to Create It

Structure, character sets A/B/C, check digit and how to create Code 128 for logistics, inventory and industry.

EAN-13 barcode on product packaging with scanner
EAN-13

EAN-13 Explained: Structure, Check Digit & Valid Codes

EAN-13, GTIN-13, prefixes, check digit and valid codes for retail and internal labeling.

QR codes in a spreadsheet with a label printer
Excel

How to Create a QR Code in Excel: 4 Methods

Four methods for QR codes in Excel: generator, IMAGE function, VBA macro and add-in.

QR code tracking with analytics dashboard
Tracking

QR Code Tracking: Does it work with UTM parameters?

Yes. With UTM parameters, redirect links and analytics tools, QR code campaigns can be measured cleanly.