QR code checker

Will your QR code stop working? Check whether it holds its content itself or goes through a service that can switch it off, and whether it still opens. Free, with no sign-up.

The image is read in your browser and never sent. Only a web address is checked, by our server, and it isn’t kept.

Phone won’t read the code at all? Why a QR code won’t scan, and how to fix it.

What the result means

Static: it holds its content

A static code holds what it opens: the website’s address, the Wi‑Fi network, the contact card. No QR code service stands in between, so none can switch it off. It works for as long as what it holds does: a website’s address works while that website is online.

Through a service: someone else holds the switch

A dynamic code holds a short address on a service’s domain, which sends visitors on to the real page. That lets the page change after printing and lets scans be counted. But it only works while the service keeps that address on. Many services switch codes off when a free trial ends or a subscription stops, and the printed code then opens the service’s own page instead.

What to do

Read more: Do QR codes expire? What can stop one, and how to avoid it.

How olinqs does it

Questions

Do QR codes expire?
The code itself never does: it’s a printed pattern. What can stop is the address it holds, when that address belongs to a service that switches it off, or to a website that closes.
Why does the check say a website turned it away?
Some websites turn away automatic visits. The code may still open on a phone: scan it to be sure.
Can it read any QR code?
Most, from a clear, straight photo or a screenshot. If it can’t, crop the photo around the code, or scan it with your phone and paste the link it shows.