Where QR codes are actually useful
QR codes bridge a physical object (a poster, menu, business card, product packaging) and a digital destination (a URL, contact card, or piece of text) without anyone typing a web address. They've become standard on restaurant menus, event tickets, product packaging, and print marketing precisely because a phone camera can scan one instantly.
Getting a QR code that actually scans reliably
Keep the destination URL short — very long URLs create denser, harder-to-scan codes. Consider shortening the link first (see our URL Shortener).
Leave a quiet margin around the code — QR readers need white space (called the "quiet zone") to detect the code's edges.
Test print size before mass printing — a code that scans fine on-screen can become unreadable at 1cm on a business card. Print a test copy at actual size and scan it.
Avoid placing it over busy backgrounds or images, which reduces contrast and scan reliability.
What you can encode
Beyond plain URLs, QR codes can hold plain text, contact details (vCard), Wi-Fi credentials, or email addresses — useful for anything from a conference badge to a home network sign.
FAQ
Do QR codes expire?
No — a static QR code encodes the content directly and works indefinitely. It will stop being useful only if the destination URL itself goes offline.
Can I customize the color or add a logo?
Basic color customization is supported; just keep enough contrast between the code and background for scanners to read it reliably.