QR code tickets have become the standard for event entry, and for good reason. They are faster to scan, impossible to lose (as long as you have your phone), and give organisers real-time attendance data.
This guide explains how QR ticketing actually works, from purchase to scan.
How QR tickets work
When someone buys a ticket, the ticketing platform generates a unique QR code for that specific ticket. This QR code contains encrypted information that links back to the ticket record in the system — the buyer's name, ticket type, event date, and validation status.
The buyer receives their QR code by email, and can also save it to Google Wallet or Apple Wallet on their phone. Some platforms also offer PDF tickets with the QR code printed on them, for people who prefer a paper backup.
At the venue door, a staff member scans the QR code using a smartphone camera or a dedicated scanner app. The system checks the code against the database in real time and confirms whether the ticket is valid, already used, or invalid.
Why QR is better than paper
Speed. Scanning a QR code takes under a second. Checking names on a printed list or inspecting a paper ticket takes much longer. For events with queues, this difference is significant.
Security. Each QR code is unique and cryptographically linked to a specific ticket. You cannot photocopy a QR ticket and use it twice — the second scan will show it has already been validated. Paper tickets with simple numbering are much easier to counterfeit.
Data. Every scan is logged with a timestamp. After the event, you know exactly how many people attended, when they arrived, and which ticket types were used. This data is invaluable for planning future events.
Convenience. Fans do not need to remember to print anything. The ticket lives on their phone, in their email, or in their digital wallet. If they lose their phone, they can pull up the email on any device.
What to look for in a QR ticketing system
Not all QR ticketing is created equal. Here are the features that matter:
- Real-time validation — The scanner must check the database in real time. Offline-only scanning risks duplicate entries.
- No app required for scanners — Your door staff should not need to download and install a native app. Web-based scanning through a browser link is faster to set up and works on any phone.
- Wallet integration — Google Wallet and Apple Wallet support makes it easy for fans to access their tickets without searching through email.
- Duplicate detection — The system should clearly flag when a QR code has already been scanned, preventing double entry.
- Multiple scanner support — For larger events, you need multiple people scanning simultaneously without conflicts.
How tickts handles QR scanning
On tickts, the scanning process is designed to be as simple as possible:
- The organiser generates a magic link for door staff — no account or login needed.
- The door staff member opens the link on any smartphone.
- They point the camera at the fan's QR code.
- The screen shows green for valid, red for already scanned or invalid.
- Attendance updates in real time on the organiser's dashboard.
The entire setup takes about 30 seconds. There is no app to install, no hardware to buy, and no training required beyond "point the camera at the code".
Common concerns
"What if the internet goes down?" Most modern venues have reliable connectivity. But for outdoor events or venues with poor signal, it is worth having a mobile hotspot as backup. Some scanning systems also support offline mode with sync when connectivity returns.
"What about older fans who do not use smartphones?" QR tickets can also be sent as PDF attachments that fans can print. The printed QR code scans exactly the same way as one displayed on a phone screen.
"Can QR codes be screenshotted and shared?" Yes, but the first person to scan it gets in. The second attempt will show the ticket as already used. This is actually more secure than paper tickets, where duplicates are harder to detect.
The bottom line
QR ticketing is not just a technology upgrade — it is a better experience for everyone. Faster entry for fans, better data for organisers, and stronger security against fraud. If you are still using printed tickets or door lists, making the switch is one of the easiest improvements you can make.
The Technology Behind QR Code Tickets
QR (Quick Response) codes are two-dimensional barcodes that can store significantly more data than traditional barcodes. A single QR code can encode up to 4,296 alphanumeric characters — more than enough to store a unique ticket identifier, event details, and verification data.
When you buy a ticket on Tickts, the system generates a unique encrypted code for your ticket. This code is encoded into a QR code image that can be displayed on your phone screen, saved to a digital wallet, or printed on paper.
How Scanning Works at the Venue
At the venue entrance, door staff use the Tickts scanner — a web-based application that works on any smartphone camera. The scanning process takes about one second:
- The scanner reads the QR code from the attendee phone or printed ticket
- The code is sent to the Tickts server for real-time validation
- The server checks: Is this a valid ticket code? Has it already been scanned? Is it for the right event and date?
- The scanner displays a green checkmark for valid tickets or a red warning for invalid or already-used tickets
- Valid tickets are immediately marked as "used" in the database using an atomic update
Why QR Codes Beat Paper Tickets
- Impossible to counterfeit: Each QR code is cryptographically unique. Photocopying or screenshotting a QR code does not create a valid duplicate — the first scan invalidates all copies.
- Real-time validation: Unlike paper tickets with a visual check, QR codes are verified against the database in real time. Door staff know instantly whether a ticket is genuine.
- No printing costs: No ticket stock, no printers, no postage. The ticket exists digitally from purchase to entry.
- Attendance tracking: QR scanning creates an accurate, real-time record of who has entered the venue. This is valuable for capacity management, emergency procedures, and post-event analysis.
- Environmentally friendly: No paper waste from unused tickets, misprints, or outdated ticket stock.
Double-Scan Prevention
One of the most critical security features in QR code ticketing is preventing the same ticket from being used twice. On Tickts, this is handled with an atomic database operation — the system checks and updates the ticket status in a single, uninterruptible step.
This means that even if two people present the same QR code at different entrances at exactly the same time, only one will be admitted. The first scan wins, and the second sees an immediate rejection.
Offline Considerations
QR code scanning requires an internet connection to validate against the server. For venues with poor connectivity, organisers can download an offline attendee list before the event. However, live validation is always recommended for the strongest security.
Frequently Asked Questions
What if my phone screen is cracked?
As long as the QR code is visible and the camera can read it, a cracked screen should not prevent scanning. If the QR code is obscured, you can show a printed copy or ask door staff to look up your booking by name or email.
Can I screenshot my QR code?
You can, and it will work for entry — but only once. The first scan of that QR code, whether from the original ticket, a screenshot, or a printed copy, marks it as used. Any subsequent scan of the same code will be rejected.
Do QR tickets work without internet on my phone?
The QR code image itself does not need internet to display — it is just an image on your screen. The scanning device at the venue needs internet to validate the code against the server. Your phone only needs to show the image clearly.
