QR code guides & playbooks
Real advice on using QR codes in the wild: where to put them, how big to print them, what to link, and what changes once a code is dynamic. Written by the team that builds QRFLOW.codes, from real events, shops and museums, with sizes and distances you can check.
Open house sign in sheet that people actually fill in
What to put on an open house sign in sheet, the five fields worth asking for, and how to replace the clipboard with a code visitors scan.
Scavenger hunt ideas for kids, parties and the office
Twelve scavenger hunt ideas for kids, classrooms, parties and offices, with clue wording, print sizes, and hiding spots that still scan.
QR code example for every situation
Practical QR code examples you can copy for sales, support, events, school, packaging, and more, with tips on what each code should open.
MCP GitHub for developers
A plain guide to the MCP GitHub world for developers, from repo structure and contributions to where community help usually lives.
Google Pay QR code payment: set it up and test it
Set up a Google Pay QR code payment flow, test it before print, and know when to use a custom QR instead of your app code.
Shopify MCP: what each server does, and what it cannot do
Shopify MCP is several servers with different jobs. One serves documentation to your coding tool, others serve shopping agents, and none of them opens a door into your admin.
Dog tag with QR code: smart pet ID that updates
A QR dog tag can show more than a phone number and, if the linked details change, you can update them without replacing the tag.
QR code with logo in middle, design it to still scan
A logo in the center can work if you keep it small, add contrast, and test the printed code at real size before you order a batch.
QR code for fundraising success
Practical ways to use donation QR codes at events, in print, and online, with sizes, placement tips, and the setup choices that matter.
QR code logo size: we measured it 15,840 times
Most advice on logo size gives a number with no method behind it. We ran the test: 408 combinations, 60 codes each, and one result that contradicts the usual guidance.
QR code marketing news: what actually changed
A plain update on the QR code changes marketers should actually care about, plus where newer code formats and tools fit real campaigns.
QR code on food packaging: a new trend
Food packaging QR codes can show ingredients, sourcing, care tips, and more. This guide covers what to link, where to print, and what to test.
QR code vs barcode: which is better?
QR codes and barcodes solve different jobs. This comparison helps you pick the right one for labels, packaging, menus, forms, and signs.
QR code for inventory tracking that cuts count errors
A field guide to using QR labels in stockrooms, vans, and back offices, with setup tips you can copy before your next count.
Do QR codes expire or last forever?
Some QR codes keep working for years, while others stop when the linked page, redirect, or subscription does. Here’s what decides their lifespan.
QR code for headstones: share the stories behind the name
Planning a memorial QR code for a grave marker or plaque? Here’s what to link, what material to use, and how to make it hold up outdoors.
How to make a QR code for a video
Make a QR code that opens your video on YouTube, Vimeo, or your own site, then print it at a size that still scans on real phones.
Choosing an online QR code generator: 3 key factors
Picking an online QR code generator comes down to three things: what you can change later, what you can download, and what it costs after printing.
What does QR code stand for and how does it work?
QR means Quick Response. Here’s what the name refers to, how the square code works, and why it beat old barcodes for links and phones.
QR code for contact info
Make a code that saves your details to a phone contact card, print it at a scannable size, and know when you need an editable version.