Question 1

What's the difference between static and dynamic QR codes?

Accepted Answer

Static QR codes permanently encode data within the code itself and cannot be changed after generation. They work forever without requiring any service, never expire, have no tracking concerns, and function completely offline. Dynamic QR codes contain a short URL that redirects to changeable content, requiring ongoing service fees and introducing tracking mechanisms. Static codes are superior for permanent, reliable, and privacy-respecting applications.

Question 2

Do QR codes generated by your tool expire or have usage limits?

Accepted Answer

No. QR codes created with our generator are 100% free, permanent, and have no restrictions whatsoever. There are no expiration dates, no scan limits, no hidden fees, and no service dependencies. Once downloaded, your QR code is yours forever and will function indefinitely as long as the destination remains active.

Question 3

What's the maximum scanning distance for QR codes?

Accepted Answer

The general rule is that scanning distance is approximately 10 times the QR code width. A 4-inch QR code can typically be scanned from about 40 inches away. Factors affecting distance include camera quality, lighting conditions, color contrast, data complexity, and error correction level. For optimal scannability, ensure codes are at least 2x2 inches for close-range scanning.

Question 4

Can I change the destination URL after generating a QR code?

Accepted Answer

Static QR codes permanently encode the URL and cannot be changed after generation. However, you can use a URL shortener service (like Bitly) when creating your QR code. Point the QR code to the shortened link, then change where that short link redirects in the shortener's dashboard. This provides dynamic functionality while using free, static QR codes.

Question 5

Why won't my QR code scan properly?

Accepted Answer

Common issues include insufficient contrast, size too small (minimum 2x2cm), poor print quality, logo too large (max 25% of code area), curved surfaces, damage or dirt, incorrect error correction level, reflective materials, low lighting, or too much data. To fix: test with multiple devices, ensure adequate lighting, use higher error correction, increase physical size, improve print quality, and ensure flat, matte surfaces.

Question 6

Are QR codes safe? Can they contain viruses or malware?

Accepted Answer

QR codes themselves are completely safe and cannot contain executable code, viruses, or malware. They are simply encoded data like text or URLs. However, the destination could potentially be malicious. Best practices: verify the source before scanning, use QR readers that preview URLs first, look for HTTPS, be cautious of unexpected codes, and treat scanning a QR code like clicking a link.

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