Guide · Basics
What Is a Dynamic QR Code? Static vs Dynamic, Explained
A dynamic QR code stores a short redirect URL you can change at any time — so you can update where a printed code points without reprinting it, and track every scan. Here is how dynamic and static QR codes differ, and when to use each.
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A dynamic QR code stores a short redirect URL instead of your final destination. Because the printed pattern only points at that short link, you can change where it sends people at any time — without reprinting the code. A static QR code, by contrast, has the destination encoded directly into the image, so it can never be changed once it’s made.
How a dynamic QR code works
When you create a dynamic code, the image encodes a short redirect URL rather than your real link. Anyone who scans it lands on that short URL for a fraction of a second and is forwarded to whatever destination you’ve set. To change the destination, you update the redirect target in your dashboard — the printed code never has to change, because the short URL inside it stayed the same.
That redirect step is also what makes analytics possible. Every scan passes through the short URL, so the code can count it before forwarding the visitor on.
Static vs dynamic QR codes
The difference comes down to whether the destination is fixed inside the image or controlled by you afterward.
| Static QR code | Dynamic QR code | |
|---|---|---|
| Editable after printing | No | Yes, anytime |
| Scan tracking | Not possible | Real-time scans, devices, location |
| Depends on a service | No — works on its own | Yes — needs the redirect to stay active |
| Best for | A link that will never change | Menus, packaging, campaigns you’ll update |
Can you change a QR code after printing?
Yes — as long as it’s dynamic. You can repoint a dynamic code as many times as you like: swap a flyer’s landing page, send a packaging code to this season’s promotion, or fix a wrong link after a thousand copies are already in the wild. The printed code stays valid because only its redirect target changed. A static code offers no such option — a wrong link means a reprint.
How dynamic QR codes are tracked
Because every scan routes through the redirect, a dynamic code can report how it’s performing in real time: total scans, unique visitors, the devices people scanned with, and country-level location. That turns a printed code from a one-way link into something you can measure and improve — which poster pulled the most scans, when traffic peaks, and where your audience actually is.
When to use static vs dynamic
Reach for a staticcode when the destination is genuinely fixed and you don’t need analytics — a Wi-Fi password card or a link to a page that will never move. Reach for a dynamiccode whenever the destination might change, or whenever knowing how the code is performing matters: restaurant menus, product packaging, events, business cards, and any printed campaign you’ll iterate on.
GlyphIQ lets you do both — generate a fully customized static QR code free with the free QR code generator, or create a dynamic code you can update anytime and track with real-time, privacy-first analytics.
Create a dynamic QR code you can update anytime
Free static codes need no account. Add a dynamic destination and real-time analytics when you sign up.
Frequently asked questions
Can I change a QR code after it has been printed?
Only if it is a dynamic QR code. A dynamic code points to a short redirect URL you control, so you can change the destination as many times as you need and the printed code stays the same. A static code has the destination baked into the image and cannot be changed after printing.
Do QR codes expire?
A static QR code does not expire — the destination is encoded directly in the image, so there is no service that can lapse. A dynamic QR code depends on the redirect service that hosts it, so it keeps working for as long as that service keeps the code active.
Is a dynamic QR code worth it if my link never changes?
If the destination truly never changes and you do not need scan analytics, a static code is simpler and free. Choose a dynamic code when you want the option to update the destination later, or when you want to measure how often and where the code is scanned.
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