Guides

Practical, step-by-step guides for creating, printing and troubleshooting QR codes.

How to Create a QR Code for Free in 3 Steps

Create your first QR code in under a minute — no sign-up, no software to install.

How to Make a Wi-Fi QR Code Guests Can Scan to Connect

Stop spelling out your Wi-Fi password. One scan connects your guests instantly.

QR Code Won't Scan? A 7-Point Checklist

Work through the most common causes one by one — colors, size, margins, and the surface you printed on.

The Right QR Code Size for Every Print Job

Business cards, posters, storefront signs, billboards — each needs a different QR size.

How to Add a Logo to a QR Code (That Still Scans)

Put your brand logo in the center of a QR code without breaking it — if you follow three rules.

PNG vs SVG: Which QR File Should You Download?

Understand the difference in two minutes and pick the right file for the job.

Making QR Code Signs for a Restaurant

From choosing the right QR type per spot to sign materials that survive daily table wiping.

Choosing QR Colors That Match Your Brand and Still Scan

You can recolor a QR code without breaking it — once you understand the brightness-contrast rule.

How to Test a QR Code Before Printing in Bulk

A 10-minute test checklist that saves you from reprinting an entire batch.

Creating a Business Card QR Code (vCard) — One Scan to Save Your Number

Turn a paper business card into a saved phone contact instantly — no manual typing.

What Is a QR Code and How Does It Actually Work?

The black and white squares are not random. Here is what each part does, and why a code works with no signal at all.

How to Scan a QR Code on iPhone and Android

Both phones can do it without an app. Here is where to look, and what to do when nothing happens.

QR Code Scams: How to Spot a Fake Before You Scan

Scanning is harmless. Everything that goes wrong happens in the seconds after, and there are a few reliable warning signs.

Does a QR Code Track You?

The pattern itself cannot. What happens after the scan is a different question — and that is where the answer gets interesting.

PromptPay QR Codes: What You Can Make Yourself and What You Cannot

Payment codes have to come from your bank. Here is why, and what you can safely do with the one they give you.

LINE QR Codes for Small Businesses

Two different codes get confused constantly. Here is which one you want and how to print it so people actually add you.

A QR Code That Opens Your Location in Maps

Thai addresses are hard to type and harder to search. A code that drops the pin for you solves both.

QR Codes for Instagram, TikTok and Facebook

Each app has its own in-app code. For anything printed, you almost always want a plain one instead.

Using a QR Code to Keep Digital Copies of Receipts

A QR code linking to a digital copy means a faded thermal receipt is never your only record.

QR Error Correction Levels, Explained Simply

L, M, Q, H — what they actually mean, and which one you should pick.

Restaurant Menu QR Code: PDF or a Real Web Page?

Both work, but they fail differently — here's which to pick for your situation.

Designing a Promotion Sign So People Actually Scan the QR Code

The QR code isn't the hard part — getting someone to notice it and want to scan it is.

When an Email QR Code Actually Helps

Pre-fill the address, subject, and body so people email you without typing anything on a phone keyboard.

How to Use QR Codes in Your Coffee Shop

Practical ways to use QR codes in a coffee shop — a menu you can update anytime, WiFi guests connect to without asking, and more.

Collect Customer Feedback With a QR Code (No Coding Needed)

Link a QR code to a free Google Form and start collecting structured feedback the same day.

What to Put in a Wedding Invitation QR Code

Skip the RSVP card and the location pin — a QR code on the invitation can carry both.

Why QR Codes Need a White Border (and How Much)

That plain white margin around a QR code isn't wasted space — remove it and scanning breaks.

QR Code Ideas for Market Stalls and Street Vendors

No storefront, no problem — a laminated QR code does a lot of what a shop website would.

QR Codes for Parking Notices and "Report an Issue" Signs

Let people reach you about a blocked car or a building issue without hunting for a phone number.

Make a QR Code People Can Tap to Call

One scan dials your number directly — no typing, no saved contact needed first.

Pre-Filled SMS QR Codes: What They're Good For

One scan opens a text message already addressed and worded — the recipient just hits send.

Turn a Google Review Request Into a One-Scan QR Code

Fewer taps between "happy customer" and a posted review means more reviews actually get posted.

Can You Edit a QR Code After It's Printed?

Short answer: no. Here's what that means for how you should plan before printing.

QR Code vs Barcode: What's Actually Different

They solve different problems — one stores data, the other just points to a database entry.