A QR (Quick Response) code is a two-dimensional barcode that can store information like URLs, text, and contact details. When scanned with a smartphone camera or QR reader app, it quickly provides access to the encoded information.
Our QR code generator can encode various types of information including website URLs, plain text, phone numbers, email addresses, and contact information (vCard). The most common use is for website URLs that users can quickly access by scanning.
Most modern smartphones can scan QR codes directly through their camera app. Simply open your camera, point it at the QR code, and tap the notification that appears. For older devices, you may need to download a QR code scanner app.
For reliable scanning, printed QR codes should be at least 2x2 cm (about 0.8 inches). The size may need to be larger depending on the scanning distance - a general rule is 10:1 ratio (scanning distance to QR code size). Our generator creates high-resolution QR codes suitable for various printing sizes.
Yes, once generated, your QR codes are permanent and will continue to work as long as the encoded content (like the website URL) remains valid. The QR code itself doesn't expire, but if it links to a website, make sure the website stays active.
Our generator creates standard black and white QR codes which offer the best scanning reliability. While QR codes can be customized with colors and logos, it's important to maintain sufficient contrast and not obscure the code pattern to ensure reliable scanning.
After generating your QR code, you can download it as a PNG image file. You can then share it digitally via email or messaging apps, print it on marketing materials, business cards, or display it on screens. The QR code maintains its functionality regardless of how it's shared.
Basic QR codes don't include built-in tracking. However, if your QR code links to a website, you can track visits using your website's analytics tools. For advanced tracking, consider using URL parameters or dedicated QR code management platforms.
QR codes themselves are just a way to encode information and don't include security features. However, users can see the destination URL before accessing it. For secure applications, ensure the linked content is hosted on a secure (HTTPS) website.
A standard QR code can store up to 4,296 alphanumeric characters. However, for best scanning reliability, we recommend keeping the content concise. For sharing longer text, consider linking to a webpage instead of encoding the full text.