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QR Codes for Events — Attendee Check-In, Badges, and Tickets
Last updated: May 2026 · → Open the free generator
Events with 50 or 500 attendees have the same requirement: every person needs a unique, scannable credential that gets them through the door and into the right sessions. QR codes on lanyard badges, printed tickets, or email PDFs are the practical standard. The challenge is generating a different code for every attendee efficiently.
BatchPrintGTIN's batch QR generator reads your attendee CSV — exported from Eventbrite, Google Sheets, Airtable, or any registration system — and produces a separate QR code for every row in under a minute. Free, no account, no server uploads. Download as a ZIP of PNG files or a multi-page PDF ready for badge printing.
Event QR Code Use Cases
Attendee Check-In Badges
A lanyard badge with a unique QR per attendee is the fastest way to process check-in. Staff scan the code with a handheld scanner or smartphone; the check-in system marks the badge as used. For conferences with 300+ attendees, this reduces entry queues from 20+ minutes to under 5 minutes versus manual name lookups.
Session Access Control
For multi-session events, different attendees access different rooms. Encode the access tier in the QR code data. A sponsor-tier badge encodes a different identifier than a general admission badge. Scanning at each session door validates the correct access level.
Digital Tickets
Email a PDF ticket with a unique QR per registrant. The code encodes a unique ticket ID. At the door, staff scan it and the system confirms validity — preventing duplicate entry from forwarded emails.
Exhibitor Lead Capture
Exhibitor booths use QR codes for lead capture: an attendee scans the booth code, which opens a contact form pre-populated with the booth ID. Generate a unique QR per exhibitor in the same batch as your attendee codes.
Session Feedback
A QR code on screen at the end of each talk that scans to a feedback form increases completion rates significantly. Generate one QR per session URL, print on A5 tent cards placed on each seat.
Building the Attendee CSV
Plain text ticket ID (simplest):
ticket_id,label TKT-2026-0001,Sarah Chen TKT-2026-0002,Marcus Williams TKT-2026-0003,Priya Patel
URL-based (links to your check-in system):
url,label https://checkin.yourevent.com/verify?id=TKT-0001,Sarah Chen https://checkin.yourevent.com/verify?id=TKT-0002,Marcus Williams https://checkin.yourevent.com/verify?id=TKT-0003,Priya Patel
The URL approach enables smart check-in: scanning the badge opens the attendee record in your check-in system automatically. No lookup needed by staff.
QR Code Size on Badges
| Badge size | Recommended QR size | Notes |
|---|---|---|
| Standard lanyard (3.5" x 4") | 3.5 cm square | Leave room for name and logo |
| Conference badge (A6) | 4–5 cm square | Bottom third of badge |
| Wristband | 1.5–2 cm square | Minimum viable — test first |
| Ticket stub (2.5" x 5.5") | 2.5–3 cm | Side column of ticket |
Recommended Equipment
Brother QL-820NWB Wireless Label Printer
Prints QR codes at 300 DPI. Wireless. Supports badge-width label rolls including 62 mm full-bleed. Print name badge labels on demand at registration desks for last-minute attendees.
Badge printingWirelessOn-demandView on Amazon
Badge Holders and Lanyards — Bulk Pack
Pre-punched clear badge holders in standard conference sizes (3.5"x4" and 4"x6") with lanyards. Buy 10–20% more than your confirmed count for last-minute registrants and replacements.
Conference standardBulk valueView on Amazon
Retractable badge reels — the upgrade worth making for professional events
Standard lanyards work fine for one-day conferences. For multi-day events or anywhere attendees need to tap their badge against a reader to enter sessions, retractable reels are noticeably better. The cord extends to swipe at a reader and retracts cleanly — no removing the badge, no fumbling with a lanyard over the shoulder. Specialist ID's 25-pack is the most consistently reviewed option in the category at 4.6 stars; the 360-degree swivel clip means it attaches to any lanyard, belt loop, or pocket.
Retractable badge reels — bulk 25 pack, 360° swivel clip
Professional-grade retractable badge reels with 360-degree spinning alligator clip. 34" cord extends for tap-to-access readers, retracts automatically. Compatible with any standard badge holder sleeve. 4.6 stars across thousands of reviews — used in hospitals, corporate events, and conferences.
4.6 stars360° swivel34" retractable cordView on Amazon
Printable name badge sheets — for smaller events without a label printer
Not every event has a dedicated label printer at registration. For gatherings under 100 people, Avery 5392 and compatible blank badge insert sheets let you print names and QR codes directly from a laser or inkjet printer — eight badges per sheet, pre-perforated for clean separation. Print the full sheet, separate the badges, slip them into clear badge holders, and done. Slower than a dedicated label printer at scale, but entirely workable for a 50-person workshop or team event.
Printable name badge inserts — 8 per sheet, laser/inkjet compatible
Pre-perforated printable badge inserts for standard 3"×4" conference badge holders. Eight per sheet. Compatible with laser and inkjet printers. No special software required — print directly from Word, Google Docs, or your registration platform's export.
8 per sheetNo special printerWorks with badge holdersView on Amazon
Inateck BCST-70 Wireless QR Scanner
Fast wireless QR scanner for check-in staff. Bluetooth connection to a laptop or tablet at the entry desk. Reads QR codes off badges reliably even if slightly crumpled. 180-day battery.
WirelessQR + barcodeLong batteryView on Amazon
Avery 5160 — 1"x2-5/8" Inkjet/Laser Labels
For smaller events: print QR codes and attendee names on Avery 5160 sheets from any inkjet or laser printer. Apply to a blank badge card or cardstock insert. 30 labels per sheet.
No special printer30 per sheetQuick setupView on Amazon
Frequently Asked Questions
Getting the Physical Check-In Setup Right
The QR codes are only part of the picture. At a real event, how those codes are worn and scanned determines whether check-in is smooth or a bottleneck at the entrance. Two items that make a visible difference:
Retractable badge reels — 360° swivel clip, bulk 25-pack
Lanyard badges work fine for all-day conferences. For events where attendees need to scan their badge at multiple session doors or access points, a retractable reel is more practical — the cord extends to the scanner without the attendee having to remove the badge or fiddle with a flip. Specialist ID's 25-pack has a 360-degree rotating alligator clip that doesn't stress the cord when pulled at different angles, which matters across a full conference day. The 34-inch cord length reaches any standard mounted scanner height.
360° swivel clip34" cord25-pack bulkView on Amazon
Printable name badge insert sheets — 8-up, conference size
For smaller events where a dedicated label printer isn't available, printable badge insert sheets let you produce professional-looking badges on any office inkjet or laser printer. The 8-up layout prints name, title, company, and a QR code per badge on standard letter paper — cut, insert into a clear badge holder, done. Avery 5392 and compatible blanks both work; the key is matching the sheet layout to the Page Designer output so the QR code prints centred on each insert.
8 per sheetStandard printerClear holder compatibleView on Amazon
How do I create unique QR codes for event attendees?
Export your registrant list as CSV with a unique ID or URL per person and a label column with their name. Upload to the free batch QR generator, select Text or URL type, download ZIP. Each QR file is named by the attendee name. A 200-person event batch takes about 20 seconds.
Can QR codes replace printed tickets?
Yes. A QR encoding a unique ticket ID or check-in URL fully replaces a printed ticket. Staff scan at entry; the system marks the code as used. For large events (500+), dedicated handheld scanners process check-in faster than smartphone cameras.
What error correction level should I use for event badges?
Level H (30% redundancy). Event badges get folded, bent, and worn throughout the day. Level H ensures reliable scanning even if nearly a third of the code is damaged or obscured.
How do I integrate QR check-in with Eventbrite?
Eventbrite generates its own QR codes for tickets through their Organiser app. If you need custom QR codes for session access control or a third-party check-in system, export your attendee list as CSV, generate codes in BatchPrintGTIN, and import them into your check-in platform.