How to Create a QR Code for URLs, WiFi and Business Cards

QR codes are the universal offline shortcut: posters that open your website, table cards that connect guests to WiFi, business cards that save your contact in one scan. You don't need any software — here are the three most useful kinds and how to make them.

The Three Most Useful QR Codes

• URL code: turns any link into a scannable square — perfect for posters, flyers and packaging.
• WiFi code: encodes your network name and password so guests connect instantly, no dictation needed.
• Contact code: encodes name, phone and email — one scan saves you to someone's address book.

Create One in 30 Seconds

• Open the QR Code Generator and pick a content type (URL / WiFi / text)
• Enter the content — the code preview updates live
• Adjust colors and size if needed, then download the PNG

4 Tips to Maximize Scan Rates

• Keep high contrast: dark code on light background works best; avoid pale-on-pale colors.
• Respect the quiet zone: leave a clear margin around the code or scanners may fail.
• Mind the size: at least 2×2 cm in print, 120×120 px on screens.
• Test before mass printing: printers vary in color and sharpness — scan one sample first.

FAQ

Do these QR codes expire?

No. These are static codes — the content is encoded directly in the pattern, works forever, and depends on no third-party service. Just remember: if the encoded URL dies, the code dies with it.

Can I customize the colors or add a logo?

You can set foreground and background colors — pick a dark shade close to your brand color. Logos should stay small in the center; static codes tolerate up to ~30% occlusion.