Static vs dynamic QR codes
Every QR code is either static or dynamic, even if the generator never tells you which. The difference decides whether you can change the destination after printing, and whether your code keeps working if a service shuts down.
QR codes · Published 2026-10-07
Static QR codes: the information is inside the code
A static QR code stores the final content directly in its pattern: a web address, Wi‑Fi details, a phone number or plain text. When someone scans it, their phone reads that content immediately, with no other service involved.
- They work forever. Nothing can expire because nothing sits in between.
- They are private. No third party sees when or where the code is scanned.
- They cannot be changed. If the website address changes or there is a typo, you must print a new code.
- Long content makes a denser code that needs to be printed larger.
Dynamic QR codes: the code points to a short link
A dynamic QR code stores a short redirect link that belongs to the service you used. When someone scans it, they first reach that service, which then sends them to the real destination.
- You can change the destination at any time without reprinting.
- The code itself stays small and easy to scan, because the short link is short.
- The service can count scans, which is useful for marketing.
- It only works as long as the service exists and your account is active.
That last point matters. Some QR services offer a free trial and then disable codes unless you pay a subscription. A printed code that suddenly opens an upgrade page is a bad experience for your customers.
When to use a static code
- Your own website homepage or a page whose address will not change.
- Wi‑Fi login for a home, office or café.
- Product packaging and anything printed in large volumes for years.
- Situations where privacy matters and you do not want scans tracked.
When a dynamic code makes sense
- Business cards, where your job title, phone or email might change.
- Restaurant menus or price lists that are updated often.
- Marketing campaigns where you want to change the landing page later.
- Long destinations, where a direct static code would be too dense to print small.
A middle path: point a static code at a page you control
If you own a website, you can get most of the benefits of a dynamic code without depending on a QR company. Create a page such as yoursite.com/menu, make a static QR code pointing to it, and update the page whenever you need to. The code never changes, and you never rely on a third-party redirect.
How it works in Zonlet
Zonlet's QR generator makes static codes for links, Wi‑Fi, email, phone, SMS and more. They are created in your browser and never expire. For contact cards, Zonlet also offers an editable vCard QR: the code points to a short zonlet.com link, and you can update your details later from your dashboard without reprinting your cards.