QR Code Blog

Applied ideas and troubleshooting from the Link2QR team

These posts are about putting QR codes to work: what to do with one once you know how to make it, and what to check when a code that looked fine on screen fails in the real world. Every idea here can be built with the free generator, with no account and no expiry date on the result.

If you are looking for a specification rather than ideas, such as the size a code needs to be printed at or what error correction actually recovers, the reference guides below will get you there faster.

May 28, 2026· 6 min read

15 Creative QR Code Ideas to Try in 2026

15 practical QR code ideas for businesses, restaurants, creators, and events, with a free way to build each one in seconds.

May 28, 2026· 6 min read

9 Reasons Your QR Code Is Not Scanning (and How to Fix Each)

QR code not working? The 9 most common reasons a QR code will not scan, from size and contrast to expired dynamic codes, with a fix for each.

May 28, 2026· 5 min read

11 Creative Ways to Use QR Codes at Events and Weddings

11 creative QR code ideas for weddings, parties, and events: RSVPs, photo sharing, guest WiFi, song requests, registries, and more.

Guides and reference

The reference side of the site answers the narrower questions, with the measured numbers and the standard behaviour rather than suggestions:

What is a QR code - The beginner explanation: what the squares mean and what a phone does when it scans one.
How QR codes work - The technical breakdown, including finder patterns, versions, masking, and error correction.
Static vs dynamic - Why a code from a paid service can stop working, and when a dynamic code is genuinely the right call.
Print size calculator - The minimum physical size for a given scan distance, which is the most common print failure.
Reliability audit - Grade a finished code across eight categories before you commit it to print.
Glossary - Quiet zone, module, version, mask pattern, and the rest of the vocabulary in one place.

The full index of tools and guides is on the learn hub, and the FAQ covers formats, logos, and commercial use.

QR Code Blog

Applied ideas and troubleshooting from the Link2QR team

May 28, 2026· 6 min read

15 Creative QR Code Ideas to Try in 2026

15 practical QR code ideas for businesses, restaurants, creators, and events, with a free way to build each one in seconds.

May 28, 2026· 6 min read

9 Reasons Your QR Code Is Not Scanning (and How to Fix Each)

QR code not working? The 9 most common reasons a QR code will not scan, from size and contrast to expired dynamic codes, with a fix for each.

May 28, 2026· 5 min read

11 Creative Ways to Use QR Codes at Events and Weddings

11 creative QR code ideas for weddings, parties, and events: RSVPs, photo sharing, guest WiFi, song requests, registries, and more.

Guides and reference

The reference side of the site answers the narrower questions, with the measured numbers and the standard behaviour rather than suggestions:

What is a QR code - The beginner explanation: what the squares mean and what a phone does when it scans one.
How QR codes work - The technical breakdown, including finder patterns, versions, masking, and error correction.
Static vs dynamic - Why a code from a paid service can stop working, and when a dynamic code is genuinely the right call.
Print size calculator - The minimum physical size for a given scan distance, which is the most common print failure.
Reliability audit - Grade a finished code across eight categories before you commit it to print.
Glossary - Quiet zone, module, version, mask pattern, and the rest of the vocabulary in one place.

The full index of tools and guides is on the learn hub, and the FAQ covers formats, logos, and commercial use.