New: Certificate Designer and public speaker pages are live. See what shipped

QR code event check-in: how to get guests through the door fast

How QR code check-in works, how many scanners you need, and the small things that keep the queue at your door short.

Guests checking in at an event entrance with QR codes

A long queue at registration is the first thing guests remember and the last thing you want. QR code event check-in replaces alphabetical lists and highlighters with a scan that takes a second or two. Here is how it works and how to plan it.

How QR code check-in works

When someone registers or buys a ticket, they receive a ticket with a unique QR code by email. At the door, a staff member scans the code with a phone or tablet. The system checks it against the guest list and shows whether the ticket is valid, already used or not found, and marks the guest as arrived.

What you need

  • Tickets with QR codes: generated automatically by your registration or ticketing system.
  • Phones or tablets: any modern device with a camera. Event Star's check-in app runs in the browser.
  • A reliable connection: venue Wi-Fi or mobile data, plus a backup hotspot.
  • Power: charged devices and a power bank per scanner.

How many scanners do you need?

A trained person can check in a guest every five to ten seconds when guests have their code ready. As a rule of thumb, plan one scanner for every 150 to 250 guests who arrive in the busiest 30 minutes. Add one more for problems: guests whose phones died, name changes and walk-ins.

Seven ways to keep the queue short

1. Remind guests to have their ticket ready

Send a reminder the day before with the ticket attached and a note to bring it up on their phone before they reach the door.

2. Separate lanes

Have one lane for guests with a ticket ready and one for problems, so one difficult case doesn't hold up everyone.

3. Allow search by name

For guests without their code, staff should be able to search by name or email and check them in manually.

4. Use self check-in kiosks

Tablets on stands let confident guests check themselves in, freeing your staff for everyone else.

5. Print badges on demand

Pre-printed badges laid out on a table slow everything down. Badge printing at check-in means each guest gets their badge as they scan.

6. Brief your team

A ten-minute run-through before the doors open (how to scan, what each message means, who to call for help) prevents most problems.

7. Watch the numbers

Live attendance shows when the rush is coming and when you can move staff elsewhere.

Beyond the front door

The same QR code can record attendance at sessions and workshops, which matters for CPD points and certificates, and lets exhibitors capture leads by scanning badges. See how it all connects in our conference management software.

Try it

Book a demo and scan a test ticket yourself, or read our full event planning checklist.

Frequently asked questions

How does QR code check-in work at events?

Each guest receives a ticket with a unique QR code. At the door, staff scan it with a phone or tablet, the system confirms the ticket is valid and marks the guest as checked in.

Can a QR code ticket be used twice?

Not with a proper check-in system. Once a code is scanned it is marked as used, and a second scan shows a warning.

How many check-in staff do I need?

Plan roughly one scanner for every 150 to 250 guests arriving in the busiest half hour, plus one person to handle problems.

check-in QR code event day

Keep reading

All articles

Ready to sell out your next event?

Set up tickets, registration and check-in in an afternoon, all in one platform.