What is a QR code?

A QR code is a two-dimensional barcode that stores information in a scannable square pattern. It helps people jump from a physical object or printed surface into a digital action with one scan.

QR code definition

QR stands for "Quick Response." Unlike a traditional one-dimensional barcode, a QR code stores data both horizontally and vertically. That gives it more capacity and makes it useful for websites, text, contact details, WiFi credentials, app links, and more.

In practice, a QR code is a fast shortcut. It removes typing, searching, and manual data entry from the user journey.

What can a QR code store?

URLs

Web pages, product pages, videos, forms, and download links.

Contact details

vCard information such as name, number, and email address.

Plain text

Instructions, notes, short messages, and reference details.

Actions

Phone calls, SMS drafts, WiFi login data, app installs, and more.

Why QR codes became so common

Common QR code use cases

Static vs dynamic QR codes

A static QR code contains the final content directly or points to a fixed destination. A dynamic QR code points to a redirect that can be updated later. Static is simpler; dynamic is more flexible for campaigns and content changes.

Start using QR codes

Generate QR code Open guides hub