QR Code Generator
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Frequently Asked Questions
What types of QR codes can I create? +
URL QR codes (most common), plain text, Wi-Fi network credentials (SSID + password), vCard contact information, email addresses, phone numbers, and SMS messages.
What is a dynamic QR code and do I need one? +
Dynamic QR codes store a short URL that redirects to your target URL — you can change the destination later without reprinting. Static QR codes (like this tool generates) encode the data directly and can never be changed. For permanent uses (product labels, signs), static is fine. For marketing campaigns, dynamic QR codes let you track scans and update destinations.
How small can a QR code be and still scan reliably? +
The minimum size depends on the amount of data and error correction level. A simple URL QR code can be as small as 2cm×2cm in print. For complex data, use at least 3-4cm. Always include a quiet zone (white border) of at least 4 modules around the QR code.
Can I add a logo to my QR code? +
Yes. QR codes have built-in error correction (L/M/Q/H levels). Setting error correction to H (30% recovery) lets you overlay a logo covering up to 30% of the QR code area while still scanning correctly.
Will my QR code work forever? +
The QR code pattern itself lasts indefinitely, but if it encodes a URL, the URL must remain accessible. If your website goes down or the URL changes, the QR code becomes useless. For print materials, ensure the URL is permanent or use a URL shortener you control.