Do QR Codes Expire? Static vs Dynamic, Explained

No, QR codes do not expire on their own. A static QR code stores its information in the pattern itself, so it has no expiry date and works for as long as the print is readable. A dynamic QR code stores a short link that forwards to your page, so it works for as long as the service behind that link keeps forwarding. When a code stops, a link stopped, never the pattern.

That is the whole answer, and the rest of this page is the detail behind it: what each kind of code depends on, how long each one lasts in practice, why free codes from some tools stop after a couple of weeks, and how to check a code before you print a thousand of it.

The short version

Static codes never expire. There is no date, no counter and no server in a static code.

Dynamic codes last as long as the forwarding does. That is a decision made by the tool, not a property of the code.

Codes that are not links cannot expire at all. WiFi, contact, text, email, SMS, phone and location codes are read by the phone with no internet involved.

The QR code format is free to use. Denso Wave, which created it, does not charge for it, so nothing about the format itself can lapse.

On QRCodePrime, static QR codes are unlimited and free with no account, and every free account includes 10 dynamic QR codes, free for life, with scan analytics. No credit card required, no watermarks, and no ads on the site or on the redirect.

Why a QR code has no expiry date

A QR code is a way of printing text as squares, and printed text does not run out. When a phone reads the pattern it rebuilds the characters that were encoded, a web address or a WiFi password or a phone number, and nothing in that process checks a date or contacts the company that made the code.

Nothing about the format can lapse either. Denso Wave released the QR code in 1994 and still holds patents on it, and its patent page states: "Everyone can use the QR Code freely as long as following the standards for QR Codes in JIS or ISO." Its history page adds that the company kept the patent rights and declared it would not exercise them. No license exists that could run out.

So the question is never really whether the code expires. It is what the code depends on once it has been read.

Static and dynamic codes depend on different things

A static code depends only on its destination. A dynamic code depends on its destination and on the service that forwards to it. You can see the difference by reading each code and looking at the address inside.

Neither kind is better in general. A static code is the safest choice for anything permanent. A dynamic code is the right choice when the page behind a printed piece will change, which is covered step by step in how to edit a QR code after printing. The longer comparison lives on static versus dynamic QR codes.

You can check which kind any code is in a few seconds. Upload a picture of it to our online QR scanner and read the address. It shows the content without opening anything.

How long each type of QR code lasts

Every type of static code lasts until the fact inside it stops being true. This table lists what each one depends on, so you can judge a code before printing it.

Three of those rows say nothing, and that is the point. A text code, a contact card and a location code are complete in themselves. Any reader that follows the standard gets the same characters back out, this year or decades from now.

How long a dynamic QR code lasts

A dynamic code lasts for as long as its short link keeps forwarding, and the tool that owns the short link decides that. The length of time varies from a couple of weeks to indefinitely, depending on where the code was made.

Some tools tie dynamic codes to a free period. Scanova's pricing page, read in September 2026, says: "Your Dynamic QR Code will stop working once the free trial ends." QR Code Generator's pricing page, read the same month, opens with "Start with 14 days for free". Others set a cap on scans for free codes: QR Tiger's FAQ describes "three free dynamic QRs with a 500 scan limit each".

On QRCodePrime a dynamic code keeps working for as long as you keep it in your account. Every free account includes 10 dynamic QR codes, free for life, with scan analytics, no credit card required and no watermarks, and the redirect carries no ads or waiting pages. If you delete a dynamic code yourself, its short link stops forwarding and printed copies land on a page that says the code is not active, so edit a code you no longer need and keep deleting for codes that were never printed.

The free dynamic QR code generator page lists what is included.

Do free QR codes expire?

Free static codes do not expire, whoever made them, because there is nothing to switch off. If you downloaded a static code from any generator and it holds your own address, it is yours for good.

Free dynamic codes are where the surprises are. The word free on a generator's homepage can describe the static codes only, while the dynamic code you made runs on a timer. The printed piece then fails weeks after it went out, which is the situation described in QR code expired or stopped working.

The test takes a minute and it works on any tool. Make the code, download it, and read the file in a scanner before you print:

If you would rather skip accounts altogether for a permanent link, the QR code generator with no sign-up makes static codes with no watermark, and so does the free QR code generator on our homepage.

Do QR codes expire if nobody scans them?

A static code does not, because it has no way of knowing whether it has been scanned. A code on a gravestone or a museum plaque that goes unread for ten years reads the same as it did on the first day.

A code that points at a shortened link is different, because the shortener can see activity. When Google wound down its goo.gl shortener, it wrote in August 2025 that it would "preserve actively used links" and deactivate the ones that had shown no activity in late 2024. A printed code that few people scan is the kind of link that looks inactive. For anything meant to last, point the code at an address on a domain you own.

How long the link behind a code lasts

For most codes the link is the part that fails first, and links fail more often than people expect. Pew Research Center's 2024 study of link rot found that "38% of webpages that existed in 2013 are not available today", compared with 8 percent of pages that existed in 2023.

Printed material often outlives that. A sign, a manual or a product label can be in use for a decade, so the address in the code has to be one you will still control then. Three habits help. Print addresses on your own domain. Name pages for what they do and not for a date. When a page has to move, forward the old address to the new one from your website settings.

Domains themselves need renewing. ICANN's Expired Registration Recovery Policy requires registrars to send reminders about a month and about a week before a registration ends, and sets a Redemption Grace Period of 30 days after deletion for most domain endings. Automatic renewal is the simple protection.

How long the print lasts

The pattern is readable for as long as enough of it survives, and QR codes are built to survive a good deal. Denso Wave describes the feature this way: "QR Code has error correction capability to restore data if the code is dirty or damaged."

How much damage a code tolerates depends on the error correction level chosen when it was made, and Denso Wave notes that higher levels are chosen for environments where codes get dirty. Every code from QRCodePrime is generated at the highest of the four levels. What ends a printed code in practice is fading in sunlight, abrasion on a surface people touch, and peeling labels, so for outdoor use pick materials made for the weather and check the code from time to time. If a worn code stops reading, QR code not scanning has the fixes.

A checklist before you print a code meant to last

Run through these seven checks and the code will outlast the paper it is printed on.

1. Read the file in a scanner. Confirm the address inside is the one you expect.

2. Decide static or dynamic on purpose. Static for anything permanent. Dynamic when the page will change.

3. If it is dynamic, read the terms. Know what happens when a free period ends, before the print run.

4. Check who owns the domain in the address. It should be you, or a tool you trust to keep forwarding.

5. Turn on automatic renewal for that domain.

6. Use an address named for its purpose. One that will still make sense in five years.

7. Test the printed proof on two phones. The routine is in how to test a QR code before printing.

Mistakes that make codes look like they expired

Printing the first code a tool offers. It may be a dynamic code on a timer. Read the downloaded file in a scanner first.

Pointing a permanent sign at a temporary page. An event page or a seasonal offer will be gone long before the sign is.

Using a file sharing link. A shared document link stops working when sharing is turned off or the file is moved.

Changing the WiFi password and keeping the old table card. The code did not expire. The password inside it is out of date.

Closing the account that made a dynamic code. The short link goes with the account. Move the printed pieces to a new code first.

Sources

• Denso Wave: About the patent
• Denso Wave: History of QR Code, including the 1994 release
• Denso Wave: Error correction feature
• Pew Research Center: When Online Content Disappears (May 17, 2024)
• Google: We're updating our plans for goo.gl links (August 1, 2025)
• ICANN: Expired Registration Recovery Policy
• Scanova: pricing page and its questions about dynamic codes, read September 2026
• QR Code Generator: plans and pricing, read September 2026
• QR Tiger: frequently asked questions, read September 2026