What is a QR Code?
A scannable pattern of squares that encodes a web address and opens it instantly on a phone.
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Quick Answer
A QR code is a square pattern of black and white blocks that, when scanned with a phone camera, opens a web address (or other data) instantly. QR stands for “quick response,” and it is essentially a printable shortcut to anything online. Restaurants use them for menus, real estate agents use them on yard signs, and stores use them on packaging.
Full Definition
A QR code is a type of two-dimensional barcode. Where a traditional barcode encodes data in a single row of lines, a QR code uses a grid of squares, which lets it hold far more information. The most common use is to encode a URL, so scanning the code opens that web address.
Modern smartphones scan QR codes automatically through the camera app. There is no app to install. Point the camera at the code, and the phone offers to open the link. The whole process takes a couple of seconds.
QR codes can be customized to a degree. They can carry a logo in the center, use brand colors, and adopt different visual patterns, all while remaining scannable. They can also be set to redirect through a URL shortener, which adds tracking and (with the right shortener) the ability to change the destination later.
Why It Matters
A QR code is the bridge between physical and digital. Anything printed, signage, packaging, business cards, table tents, vehicle wraps, mailers, can carry a QR code and become a measurable, clickable link to your website. That is hard to do any other way.
QR codes also give a business analytics on physical marketing. A flyer with a QR code can be tracked: how many people scanned it, when, from where. A flyer without a QR code is essentially invisible to measurement.
How ShortifyMe Handles It
ShortifyMe is a QR code generator as well as a URL shortener. Create QR codes with logo upload, custom colors, six pattern styles, seven corner styles, and four error correction levels. Download in SVG, PNG, or PNG 1200 for clean printing at any size. On paid plans, you can change the destination of a QR code after it has been printed, since the QR code encodes a short link rather than the destination URL directly.
Related Terms
Dynamic QR Code
A QR code whose destination can be changed after the code is printed.
Static QR Code
A QR code whose destination is fixed and cannot be changed without making a new code.
URL Shortener
A tool that turns a long web address into a clean, short, shareable link.
Error Correction Level
A QR code setting that lets the code still scan when part of it is damaged or covered by a logo.
Quiet Zone
The blank margin around a QR code that lets scanners distinguish it from surrounding content.
Scan Tracking
Counting and analyzing how many people scan a QR code. The QR equivalent of click tracking.
Frequently Asked Questions
The QR code itself does not expire; it is a printed image. What can expire is the link inside it. If the destination URL is taken down or the short link's account is closed, the QR code stops working.
Only if it was made as a dynamic QR code, meaning it encodes a short link whose destination can be changed. A QR code that encodes a destination URL directly is static and cannot be repointed.
Modern iPhones and Android phones scan QR codes from the camera app with no separate app needed. Older phones may need a QR code reader app.
More from the ShortifyMe Glossary
Browse plain-language definitions for short links, QR codes, and link tracking.
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