A printed QR code does not have a date inside it. The black and white pattern never goes bad, and a phone from ten years from now will read it the same way. So when people ask whether QR codes expire, the real question is: will the thing behind my code still be there?
The answer depends on which kind of code you printed.
Static codes: no expiry of their own
A static QR code stores its content directly in the pattern: a web address, a WiFi password, a phone number, a contact card. There is no service in the middle, so there is nothing that can time out.
A static code only stops being useful when its content stops being true:
- A web address that goes offline, changes, or starts redirecting somewhere else.
- A WiFi code after the network name or password changes.
- A contact card after the phone number or email changes.
Because you can never edit a static code, fixing any of these means making a new code and reprinting it.
Dynamic codes: they last as long as the service does
A dynamic code stores a short link instead of the final destination. When someone scans, the service behind that link sends them on to wherever you pointed the code. That is what lets you change the destination after printing and count every scan.
It also means the code depends on that service. A dynamic code keeps working as long as the service keeps its short link running for you. That is where most "expired" codes come from:
- Free trials that end, taking the code offline with them.
- Scan limits on free plans, after which the code stops redirecting.
- Cancelled subscriptions, when the account behind the code is closed.
- Deleted or archived codes in the account that made them.
None of these are visible on the printed code, which is why they hurt: the flyer looks fine, the scan goes nowhere.
What to check before you print a dynamic code
Printing is the expensive part, so ask these questions first:
- Is there a scan limit? If the plan stops a code after a number of scans, a popular poster is exactly the one that goes dark.
- Is there a trial clock? A code made during a free trial should not be the one on ten thousand boxes.
- What happens if I cancel? Look for a clear answer about what scanners see afterwards.
- Can I move the code? Being able to repoint the code yourself, anytime, is the whole reason to go dynamic.
How it works on KuikCode
On paid plans, KuikCodes have no scan limit: every scan redirects and is counted. On the free plan, your first code works forever with no scan limit, and the other two stop after 600 scans.
When a code is stopped or archived, scanners see a neutral "no longer active" page, never a stranger's content or an ad. The owner gets an email when a stopped code is scanned, and an upgrade brings the code back within a minute, with the same print.
A code that is scanned but not working
Sometimes the code is fine and the scan still fails. A few quick checks:
- Open the destination yourself. A broken link looks the same as an expired code to a scanner.
- Look at the print. Scratches, glare, a crease across the corner squares, or a code printed too small all cause failed scans. Our guide to QR code size for print covers the numbers.
- Check the account. If it is a dynamic code, sign in and make sure the code is active and pointing where you think.
If you print dynamic codes, the one decision that matters most is the service you choose, because your printed codes depend on it. Our guide to static vs dynamic QR codes helps you decide which kind each print needs.
Frequently asked questions
01Do QR codes expire?+
The code itself never does. A static code keeps working as long as its content is still valid. A dynamic code keeps working as long as the service that runs its short link keeps it active.
02How long does a static QR code last?+
Forever, in the sense that nothing inside it can time out. It stops being useful only when what it stores stops being true, such as a website that goes offline or a WiFi password that changes.
03Why did my QR code stop working?+
Usually because the destination moved or went offline, the code sits on a free trial or scan limit that ran out, the subscription behind it ended, or the code was deleted or archived in its account. Damaged or badly printed codes can also fail to scan.
04Can I make a QR code that never expires?+
A static code has no expiry of its own. For a dynamic code, choose a service whose plan has no scan limit and no trial clock, and keep that account active. On KuikCode's paid plans, codes have no scan limit.
05What happens to a KuikCode if I stop paying?+
On the free plan, your first code keeps working with no scan limit, and the other two stop after 600 scans. A stopped code shows a neutral "no longer active" page, never someone else's content, and it comes back within a minute of an upgrade.
