A QR (Quick Response) code is a two-dimensional barcode that encodes data — typically a URL, text, contact information, or other content — in a pattern of black and white squares. Smartphones can scan QR codes using their camera to instantly access the encoded information without typing.

What can I encode in a QR code?

You can encode URLs, plain text, email addresses, phone numbers, SMS messages, Wi-Fi network credentials, vCards (contact information), and calendar events. The most common use is encoding a website URL so users can scan it to visit the page instantly.

What size should a QR code be for print?

For print, QR codes should be at least 2cm × 2cm (about 0.8 inches) at the intended print size. The more data encoded, the more complex the code — and the larger it needs to be for reliable scanning. For business cards use at least 2cm; for posters, 5cm or larger.

QR Code Generator

Enter any URL, text, or data to generate a scannable QR code. Set the pixel size, preview the result, and download as PNG — ready for print or digital use.

QR Code Generator

What You Can Encode in a QR Code

URLs and Links

The most common use. Encode a full URL to let users scan and visit your website, product page, social profile, or campaign landing page instantly.

Contact Information (vCard)

Encode a vCard with name, phone, email, and address so people can scan your QR code and instantly save your contact on their phone.

Wi-Fi Credentials

Encode a Wi-Fi network name (SSID) and password so guests can connect by scanning the code — no typing required.

QR Code Best Practices

Always test before printing — scan the QR code from multiple devices and distances before finalizing print materials.
Use a short URL — shorter content produces a simpler code pattern that scans more reliably. Use a URL shortener for long links.
Include a call to action — print text like "Scan to visit our website" near the QR code. Most people do not scan codes without a clear reason.
Maintain adequate size — minimum 2cm × 2cm for business cards; larger for any item viewed from a distance.
Ensure contrast — dark code on a light background is most reliable. Avoid placing QR codes on busy or coloured backgrounds.

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Frequently Asked Questions

You can encode URLs, plain text, email addresses, phone numbers, Wi-Fi credentials, vCards, and more. URLs are the most common use — scanning takes users directly to a webpage.

At minimum 2cm × 2cm for business cards. For posters and signage viewed from a distance, scale up accordingly. Always test scan at the intended distance before printing.