Static and Dynamic QR Codes Explained

You will hear the terms static and dynamic QR codes. They describe how the content is stored.

Static codes

A static QR code holds the content itself. If it encodes a web address, the address is written in the pattern of squares.

• It never expires.
• It needs no service to keep working.
• It cannot be changed. If the content changes, you need a new code.
• Longer content makes a denser code.

Dynamic codes

A dynamic QR code holds a short link that redirects to the real destination. The destination can be changed later without reprinting the code.

• The destination can be edited.
• The code stays small and simple.
• Some services offer scan counts.
• It depends on the service staying online. If the service stops, the code may stop working.

Which should you use?

Need	Better choice
Wi-Fi login	static
Contact card	static
Short note	static
A menu that changes often	dynamic
A poster you cannot reprint	dynamic

A caution about dynamic codes

Because a dynamic code goes through a middleman, it is worth checking where a scanned link goes before you open it. A trustworthy service, and a clear preview, help.

Scanning both

To your scanner, both look the same. The difference is in the content: one holds the final data, and the other holds a redirect link.

Tips

1. Use static for information that will not change.
2. Preview links before opening.
3. Keep a copy of anything important.

QR Code Scanner shows a preview before action, so you can see where a code leads before you open it.

Scan and create QR codes and barcodes with QR Code Scanner →