FreeOnlineQR

Guides guides

Practical, no-fluff guides for getting the most out of your QR codes and barcodes.

Jul 10

How to Set Up a Barcode System for Small Business Inventory

You don't need enterprise software or a GS1 registration to start barcoding inventory properly — just a consistent system and the right free tools.

Guides 8 min readRead
Jun 29

Code 128 vs Code 39: Choosing the Right General-Purpose Barcode

Neither of these is a retail product barcode — they're the workhorses of internal inventory, asset tracking, and shipping labels. Here's how to pick between them.

Guides 7 min readRead
Jun 26

EAN-13 vs UPC-A: The Complete Guide to Retail Product Barcodes

If you're putting a product on a real shelf, this isn't really a style choice — but knowing exactly why one format is required over the other will save you a rejected listing.

Guides 8 min readRead
Jun 24

How to Create a Barcode Online: EAN, UPC, and Code 128 Explained

Making a barcode isn't complicated, but picking the right format for the job is where most people get stuck. Here's how to get it right the first time.

Guides 8 min readRead
Jun 12

QR Codes for Events & Virtual Meetings: Calendar Invites, Zoom & Video

An invitation that has to be manually copied into a calendar gets forgotten. A QR code that adds it in one scan doesn't.

Guides 5 min readRead
Jun 10

QR Codes for Location & Directions: GPS Pins vs Google Maps

"Scan for directions" beats a printed address every time — no typing, no typos, no wrong turn. Here's the difference between the two ways to do it.

Guides 5 min readRead
Jun 2

How to Create a QR Code Menu for Your Restaurant (Step by Step)

Contactless menus aren't a trend anymore — they're the standard. Here's exactly how to set one up in under five minutes.

Guides 5 min readRead
May 31

Custom QR Code Design: Rounded, Dotted, and Framed Styles Explained

A generic black-and-white square gets ignored. Here's how to give your QR code a shape that matches your brand without breaking scannability.

Guides 5 min readRead