QR code FAQ

Quick answers. Each links to a full guide with steps and tips.

What is a QR code?

A QR (Quick Response) code is a square, two-dimensional barcode that stores information such as a web address, Wi-Fi login, contact card or payment request. A phone camera reads it in a fraction of a second and offers the matching action — open the link, join the network, or start the payment.

Full guide
How do I create a QR code?

To create a QR code, open a QR code generator, choose what the code should do (for example open a website), enter the details, and download the image. With MakeMyQROnline this is free and needs no account: the preview updates as you type, and you can download a PNG, SVG or PDF.

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Can I generate a QR code for free?

Yes. You can create a QR code for free, and a static QR code made with any generator keeps working forever because the information is stored inside the code itself. MakeMyQROnline is completely free — no subscriptions, trials or paid plans — including design options and PNG, SVG and PDF downloads.

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Do static QR codes expire?

No. A static QR code never expires, because the information — a link, Wi-Fi details, a contact card — is encoded directly in the pattern. It does not depend on the generator's servers. It only stops being useful if what it points to changes, for example a website that goes offline or a Wi-Fi password that is changed.

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What is a dynamic QR code?

A dynamic QR code stores a short redirect link instead of the final content. When someone scans it, the service sends them on to the destination you set — which you can change at any time without reprinting the code. Dynamic codes can also count scans. Unlike static codes, they need the redirect service to stay online.

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Can I edit a QR code after printing it?

Only if it is a dynamic QR code. A dynamic code contains a short link, so you can change where it leads at any time and the printed code keeps working. A static code contains the content itself, so it cannot be changed — you would need to create and print a new code.

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How do I add a logo to a QR code?

Upload your logo (or pick an icon) in the generator's Logo tab and it is placed in the centre of the code. Because the logo hides part of the pattern, MakeMyQROnline automatically switches to the highest error correction (H, about 30%) and keeps the logo to roughly a fifth of the code's width so it still scans.

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How do I create a Wi-Fi QR code?

Open a Wi-Fi QR generator, enter your network name (SSID), password and security type (usually WPA/WPA2), then download and print the code. When guests scan it with their phone camera, they are offered to join your network without typing the password. On MakeMyQROnline the password is never stored.

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How do I create a QR code for a PDF?

A QR code can't contain a whole PDF, so the PDF is uploaded online and the code links to it. On MakeMyQROnline you upload the PDF (up to 10 MB), confirm you want a shareable link, and get a QR code that opens the document on any phone. Links last 30 days.

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How do I generate a UPI QR code?

Enter your UPI ID (like name@bank), the payee name and, optionally, a fixed amount and note in a UPI QR generator, then download the code. Customers scan it with any UPI app — Google Pay, PhonePe, Paytm, BHIM or their bank's app — and the payment is pre-filled for them to approve.

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