Question 1

Do these QR codes expire or have a scan limit?

Accepted Answer

No. These are static QR codes — the data (URL, text, WiFi credentials, or contact info) is encoded directly into the code itself, so it works offline, forever, with unlimited scans. There's no dynamic redirect service that could expire or go down.

Question 2

How do I create a QR code for my WiFi network?

Accepted Answer

Choose the "WiFi" type, enter your network name (SSID) and password, and select the encryption type (WPA is standard for most modern routers). Guests can scan the code to join instantly without typing the password.

Question 3

What is a vCard QR code used for?

Accepted Answer

A vCard QR code encodes a contact card (name, phone, email, organization) that, when scanned, offers to save the contact directly to the scanner's phone — handy for business cards and email signatures.

Question 4

What does the error correction level do?

Accepted Answer

Higher error correction (Q or H) lets the QR code still scan correctly even if part of it is damaged, dirty, or covered by a logo, at the cost of a slightly denser-looking code. M (medium) is a good default for most uses.

Question 5

Is my data sent to a server to generate the QR code?

Accepted Answer

No — the QR code is generated entirely in your browser. Nothing you type (including WiFi passwords) is transmitted anywhere.

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Frequently Asked Questions

Do these QR codes expire or have a scan limit?

How do I create a QR code for my WiFi network?

What is a vCard QR code used for?

What does the error correction level do?

Is my data sent to a server to generate the QR code?

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