Do QR Codes Expire? Here's What Actually Happens
Short answer: no, a QR code itself doesn't expire. It's a pattern of black-and-white squares encoding a fixed string of data — there's nothing in the QR standard with a built-in shelf life, no clock ticking down inside the image. But that's not quite the question most people are actually asking. What they usually mean is: "will this code still work in a year?" — and the honest answer to that depends entirely on what kind of code it is, not on the QR format itself.
The code doesn't expire — but what it points to might
There are two fundamentally different things a QR code can encode, and this is where "expiry" actually comes from. A static QR code encodes its destination directly — a URL, a WiFi password, a vCard's contact details — baked into the pattern itself at creation time. There's no server involved in reading it; a scanner just decodes the pattern back into that original string. Nothing can turn this off except physically destroying the printed code.
A dynamic QR code instead encodes a short redirect link pointing at someone else's server, which then forwards the scanner to the real destination. This is genuinely useful for one specific thing — letting you change the destination later without reprinting the code — but it comes with a real dependency: if that redirect service shuts down, changes its pricing, or you simply stop paying for the plan tier that keeps your code active, the code stops resolving. The physical QR code you printed looks identical. It just points at a server that no longer answers.
Why this trips people up
Most people encounter "does my QR code expire" only after a code stops working, and the instinct is to blame the QR code itself. But a code printed on ten thousand product labels, restaurant table tents, or event badges doesn't fail because the pattern degraded — it fails because whoever generated it used a dynamic/redirect service, and something happened on that service's end months or years later. The code is fine. The link.
This is also why "free QR code generator that doesn't expire" is such a common search — people have usually already been burned once by a dynamic code that quietly stopped working, and they're looking for a way to avoid it happening again.
How to make sure yours doesn't stop working
The only way to guarantee a code never stops working is to make sure it's static from the start — the destination baked directly into the pattern, with no server in between that can go away. QRSen's generator only produces static codes for exactly this reason: what you download today is what scans in five years, because there's no third-party redirect infrastructure it depends on to keep functioning. If you've read the difference between static and dynamic QR codes and decided you genuinely need the "change the destination later" feature that dynamic codes offer, that's a legitimate tradeoff — just go in knowing you're trading permanence for that flexibility, and budget for the ongoing service cost that comes with it.
The short version
A QR code, as a pattern, never expires. What can "expire" is a dynamic code's underlying redirect service — if you're printing something you need to still work in a year, use a static code, since there's no subscription or server behind it that can lapse.