QR Code Generator

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Frequently Asked Questions

🔎 What is a QR code?

A QR (Quick Response) code is a two-dimensional barcode that can store various types of information. When scanned with a smartphone camera or QR reader app, it instantly directs users to websites, displays text, initiates phone calls, connects to WiFi networks, and more.

QR codes were invented in 1994 by Denso Wave, a Japanese company, and have become ubiquitous in modern life for quick information sharing.

📱 How do I scan a QR code?

Most modern smartphones can scan QR codes directly:

  • iPhone: Open the Camera app and point it at the QR code. A notification will appear.
  • Android: Open the Camera app or Google Lens and point at the QR code.
  • Other devices: Download a free QR scanner app from your app store.

Make sure the QR code is well-lit and your camera is focused for best results.

💾 What size should I use for my QR code?

The right size depends on your use case:

  • Small (128px): Good for digital use, emails, or small print materials
  • Medium (256px): Ideal for most purposes - business cards, flyers, websites
  • Large (512px): Best for posters, banners, or when scanning from a distance

As a rule of thumb, the scanning distance should be about 10 times the QR code's width.

🔒 Are the QR codes I generate secure?

Yes! Your QR codes are generated entirely in your browser. The data you enter never leaves your device or gets sent to our servers. This means:

  • WiFi passwords stay private
  • Personal information remains on your device
  • No data is stored or logged by us

However, remember that anyone who scans your QR code can see its contents, so be mindful of what information you encode.

🌐 Do QR codes expire?

Static QR codes (like the ones generated here) never expire. They contain the actual data directly in the code pattern, so they will work forever as long as the underlying content is valid.

For example, a QR code linking to a website will work indefinitely, but if the website goes offline, the link won't work - not because the QR code expired, but because the destination is unavailable.

🔒 Generated securely in your browser. Your data never leaves your device! 🔒