Do QR codes expire? Why some stop working and how to avoid it
Written for business owners, event organisers and hosts who want to know whether an existing QR code will stop working or how to make a permanent one
Short answer
A QR code pattern printed on paper or saved as an image never expires on its own. When a QR code suddenly shows a 'Campaign paused' or 'Subscription expired' screen, it is because the generator encoded a dynamic short-link on its own server instead of your actual link, and turned off the redirect after a free trial. A true static QR code encodes your destination URL, Wi-Fi network or vCard text directly in the squares, so it works for as long as your own webpage or Wi-Fi password exists.
On this page
Every week, thousands of restaurant owners, wedding planners and small businesses print menus, flyers or business cards, verify that the QR code works on day one, and then wake up two weeks later to angry messages that scanning the card shows “This QR code has been deactivated” unless they pay $12 to $35 a month.
Nothing inside the printed ink wore out. A QR code defined by ISO/IEC 18004 is simply a two-dimensional way of writing text in black and white squares, no different from printing words in Helvetica. What expired was a middleman redirect server that the generator slipped between your printed square and your real destination.
Why static QR codes never expire (and how dynamic ones fail)
Every QR code on earth falls into one of two setups depending on what text is encoded inside the squares:
| Characteristic | Static QR code | Dynamic QR code |
|---|---|---|
| What is encoded inside the squares | Your exact URL (https://yoursite.com), Wi-Fi string, vCard or text | A vendor’s tracking short URL (such as https://qrfy.example/7b9p) |
| Can the QR generator shut it off? | Impossible. The generator is not involved after you download the SVG or PNG. | Yes. If your trial ends, your card fails or the company closes, every scan breaks. |
| Scan cap or monthly fee | Unlimited scans forever, $0 | Often capped at 100 to 500 scans or 14 days on “free” tiers |
| Visitor privacy | Scanner connects straight to your site (or stays completely offline for Wi-Fi and vCards) | Middleman logs every visitor’s IP address, device type, timestamp and approximate city |
| Can you change the destination later? | Yes, if you encoded a URL on a domain you own (update that page or set a 301 redirect) | Yes, inside the vendor’s paid dashboard |
How to test whether a QR code you already made will expire
Before you send artwork to a print shop for 1,000 packaging boxes or event badges, take twenty seconds to inspect what is actually inside the code:
- Point your iPhone Camera (without tapping the yellow banner yet) or Android Camera at the QR code on your screen.
- Read the exact domain name displayed inside the preview pill before opening the link.
- If the preview pill shows your own domain name (or Offers to Join Wi-Fi or Add Contact directly), it is a static QR code and no QR vendor can ever expire it.
- If the preview pill shows an unfamiliar short domain (such as qrco.de, qr.io, me-qr.com, bit.ly or another redirect host) that you do not own, it is a dynamic QR code that depends on that third party staying free and online.
Note that security agencies, including the FBI IC3 advisory on QR codes, also recommend checking the preview domain before tapping any public QR code, so using your real, recognisable domain makes customers far more willing to tap your code in the first place.
The 4 real reasons a static QR code stops working
Even when you generate a clean static QR code in our free in-browser QR code generator, four real-world changes outside the QR code can still break it later:
- You deleted or renamed the webpage: if your code encodes
https://cafe.example/autumn-2026-menu.pdfand you uploadwinter-2027-menu.pdfat a new URL next season, the old printed tent cards will hit a404 Not Foundpage. Always encode a timeless path likehttps://cafe.example/menuinstead. - Your domain registration or SSL certificate lapsed: if you let your custom domain expire or break HTTPS, browsers will refuse to load the link inside the code.
- You changed your Wi-Fi password or SSID: a Wi-Fi QR code stores the exact SSID and password characters. Rotating the guest Wi-Fi password means printing a fresh card.
- Physical sun fade or abrasion: thermal receipt paper turns black or fades in sunlight within months, and unlaminated outdoor stickers scratch. Use UV-resistant ink or matte lamination for outdoor signs, and set error correction to Q (25%) or H (30%) so the code still scans if up to a quarter of the surface is scuffed.
How to get “editable” QR codes for free without a dynamic QR subscription
The single legitimate selling point of paid dynamic QR services is changing where a printed flyer goes next month. If you already have any website, WordPress, Shopify, Astro, Cloudflare Pages, Netlify, Squarespace or a company server, you already have that feature for free:
- Create a short, dedicated path on your own website, such as
https://yoursite.com/cardorhttps://yoursite.com/promo. - Point that path to today’s destination page (or set up a one-line 301 redirect in your site’s
_redirectsor.htaccessfile). - Paste
https://yoursite.com/promointo our static QR code generator and export the vector SVG.
Your printed code is tiny, scans fast, costs $0 forever, leaks zero customer data to a QR middleman, and remains 100% editable whenever you update that redirect on your own domain.
Questions
Do static QR codes ever expire?
No. In a static QR code, the characters of your URL, Wi-Fi password, phone number or vCard sit directly inside the black-and-white pattern. There is no vendor server in the middle that can pause or bill for scans.
Why did my free QR code stop working after two weeks?
Many search-engine ads for 'free QR code generator' quietly create a dynamic QR code tied to a 7-day or 14-day trial. Instead of encoding your website, the code points to the vendor’s tracking domain, which displays a paywall page once the trial ends.
Can a static QR code still break?
Yes, if you change or delete the thing it points to. If a static QR code points to example.com/menu-spring and you delete that page or let your domain expire, the QR code still decodes the exact text, and the browser shows a 404 Not Found error.
How can I change where a static QR code goes without reprinting?
Encode a clean URL on your own domain, such as yoursite.com/qr or yoursite.com/menu, as a static QR code. Whenever you need to update the destination, change the page or add a 301 redirect on your own website host.
Do Wi-Fi and vCard QR codes expire?
Static Wi-Fi and vCard QR codes never expire and work completely offline. A Wi-Fi code only stops connecting if you change the router’s network name (SSID) or Wi-Fi password.
Keep reading
How to put a QR code on a business card that actually scans
Should your business card QR code hold a vCard or a website link? Here is how to keep the grid clean, export a sharp SVG and print it.
GuideHow to make a Wi-Fi QR code for guests that works on every phone
Let guests join your Wi-Fi with one camera scan on iPhone or Android, without typing a 20-character password or uploading it to a server.
GuideHow to make a QR code for a PDF without a paid subscription
A PDF cannot fit inside QR squares; only a link to it can. Host the PDF somewhere you control and generate a static QR code that never expires.
