How to Create Useful QR Codes

Start with the destination

A QR code is a shortcut, not a destination by itself. Before creating one, decide exactly what the scanner should receive: a stable web address, a WiFi network, an email template, a phone number, an SMS draft or plain text. The clearer the destination, the easier it is to test and explain.

For public material, a short and stable URL is usually better than a long tracking link. Dense QR codes can still work, but they are harder to scan when printed small or shown on a low-quality screen.

• Use a page that will remain online.
• Avoid changing the destination after printing.
• Keep the human-readable URL nearby when the QR is important.

Test before you publish

A QR code should be tested in the same kind of situation in which it will be used. A code that scans well on a desktop monitor may fail on matte paper, a small sticker or a poster viewed from distance. Test with more than one phone if the QR will be used by many people.

• Scan before downloading if the tool shows a preview.
• Scan the final printed size, not only the design file.
• Check that the landing page loads on mobile.

Make it readable

The white margin around a QR code is called the quiet zone. If text, borders or images are placed too close to the code, some scanners may not recognize it. Contrast is also important: dark code on light background is safer than decorative low-contrast combinations.

• Keep enough blank space around the code.
• Avoid stretching or compressing the QR image.
• Use strong contrast for printed material.

Security and trust

A QR code can point anywhere, so it does not prove that the destination is safe. When you publish one, make the context clear. When you scan one, check the URL before entering information. This is especially important for payments, forms, login pages and WiFi credentials.

• Do not scan unknown payment QR codes blindly.
• Use HTTPS pages when linking to websites.
• Explain what the QR does near the code.