What Is a Dynamic QR Code?

How a dynamic QR code works

Every QR code is just a pattern that stores a little data. With a normal (static) code, that data is your actual content: the full web address, the Wi-Fi password, the contact details. With a dynamic code, the data is a short link that belongs to a QR code service, something like example.com/r/a3k9xb.

Here is what happens when someone scans it:

1. The phone camera reads the short link and opens it.
2. The service looks up where that link should go right now.
3. It forwards the phone to that destination: your website, menu, PDF, booking page or anything else.
4. At the same moment it adds one to the scan count, with the time and the type of device.

All of this takes a fraction of a second, so the person scanning simply sees your page open. To change where the code goes, you log in to the service and enter a new destination. The printed pattern never changes, because the short link inside it never changes. Only the place it points to does.

Is it a different kind of QR code?

No, and this surprises a lot of people. A dynamic QR code is a completely standard QR code, built to the same international standard (ISO/IEC 18004) as every other one. Any phone camera or QR scanner app reads it the same way, and nobody scanning it can tell the difference until they see the link.

“Dynamic” describes the service behind the short link, not the pattern. That is also why one company cannot “convert” another company’s code: what makes a code dynamic is whoever controls the link inside it.

What you can do with a dynamic QR code

Because every scan passes through a link you control, a dynamic code can do several things a static one cannot:

• Change the destination after printing. Fix a typo, swap a seasonal offer, or move to a new website without reprinting posters, packaging or business cards.
• Count scans. See how many times it was scanned, when, on what kind of device, and roughly where (usually to city level). This is how you find out which poster, table or flyer actually works.
• Show a hosted page. Many services can host the content for you: a mobile menu, a digital business card, a PDF, a review page, a coupon, or a list of links.
• Control access. Depending on the service, you can add a password, an end date, or a limit on the number of scans.
• Measure campaigns. Add UTM tags so visits from the code show up as their own source in Google Analytics or similar tools.

Dynamic vs static at a glance

For the full comparison, with examples of when to pick each, read Static vs Dynamic QR Code.

Advantages of dynamic QR codes

You only print once

Printed material lasts. A code on a shop window, a product box or a trade-show banner may be scanned for years. With a dynamic code, the content can keep up with your business, and a mistake in the link is a two-minute fix instead of a reprint.

The pattern stays simple

The more data a QR code holds, the more squares it needs. A long web address with tracking parameters makes a dense code that is harder to scan when printed small. A dynamic code always holds the same short link, so its pattern stays simple and easy to read, however long your real destination is.

You can see what works

Scan counts turn print into something you can measure. Put different codes on two posters and you will know which location performs better, which time of day people scan, and whether the campaign is worth repeating.

Limitations to know before you print

Dynamic codes are not the right choice for everything. Be aware of these before you print thousands of them:

• They depend on the provider. If the service shuts down, or your plan ends and the provider switches the link off, the printed code stops working. Pick a provider that is clear about what happens when you stop paying, and ideally one that pauses codes rather than deleting them.
• They need internet. The phone must reach the short link to be forwarded, so a dynamic code cannot work offline. Wi-Fi login codes, for example, are always static.
• “Free” is often a trial. Running a redirect service costs money, so free dynamic codes usually stop after a trial period. Read the terms before printing in volume.
• Privacy matters. A scan reveals roughly what any website visit does. Choose a provider that counts scans without identifying people, does not store IP addresses, and follows the GDPR if you or your customers are in the EU or UK.

Tip: some services let you run dynamic codes on your own domain, such as qr.yourbrand.com. People trust a link with your name in it, and it keeps you in control of your links. See QR codes on your own domain.

Common uses for dynamic QR codes

• Restaurant menus: one code per table, and the menu can change daily. Menu QR codes
• Business cards: a contact page you can update when your job title or number changes. Digital business cards
• Reviews: a code at the till or on receipts that opens your Google review form. Google review QR codes
• Packaging and labels: instructions, recipes or offers that can change between print runs.
• Posters, flyers and events: point to this week’s event, then the next one, from the same code.
• Property signs: show the current listing, then the next property, on the same sign.

How to create a dynamic QR code

1. Choose a QR code generator that offers dynamic codes and check what happens when a plan ends.
2. Pick what the code should open: a web link, or a page the service hosts for you.
3. Select the dynamic option and add your design: colours, logo and a short call to action such as “Scan for menu”.
4. Download a print-quality file. SVG or PDF stays sharp at any size; PNG is fine for screens.
5. Test the printed code with two or three different phones before printing in volume.

You can do all of this in our free QR code generator. Choose “Dynamic” when you create the code.

How to tell if a QR code is dynamic

Point your phone camera at the code and look at the link it shows before you open it. If you see the final website or the content itself, the code is static. If you see a short link from a QR code service (or a short link on a company’s own domain) that then forwards you elsewhere, the code is dynamic. Codes that join a Wi-Fi network or save a contact without opening a web page are static.

Frequently asked questions