Definition

The QR code (Quick Response code) is a two-dimensional graphic code that, when scanned with a camera, opens a URL or structured data. At events it has become the de facto standard for identifying attendees, speeding exchanges and enabling check-in/lead retrieval.

Details and formula

Practical uses in event management:

  • Attendee badge: QR contains unique ID, scanned for check-in and exhibitor lead retrieval
  • Session materials: QR projected at end of talk to download slides/recording
  • Fast networking: scanning between attendees for instant contact exchange
  • Payments: QR for donations, merchandising purchases, catering orders
  • Anonymous polls: QR projected to access poll without login
  • Wayfinding: QR on venue walls opening interactive map

Context and typical ranges

Best practice: QR codes on badges should be printed at a minimum size of 25×25 mm to be scannable from 30–40 cm distance. The content should be a short unique ID (not the full URL) to reduce code complexity and increase readability.

How it applies in OAK EVENTS

OAK EVENTS generates unique QR codes for every attendee, integrated in the printed badge and in the app. The same QR works for check-in, lead retrieval, peer scanning, material access and polls — without managing multiple codes.

Want to see qr code for events in action?

With OAK EVENTS it's a native platform feature: book a demo and we'll show it to you on a real event.

Book a demo →