20 January 2026 · 4 min · Wesley Veldeman
QR tickets without an app: how browser check-in actually works
QR tickets don't need a dedicated scanning app. Here's how browser-based check-in works, how it copes with poor signal, and the honest pros and cons for organisers.
The problem with scanning apps
Most ticketing platforms ask you to install a native app to scan tickets at the door. That sounds harmless until you are standing at the entrance an hour before doors open, asking three volunteers to download and install an app, accept permissions, and hope their phone has enough storage. Someone always has the wrong version. Someone else's install fails at the worst moment.
A QR ticket is just a string of data encoded as a black-and-white square. Reading it does not require a heavy app — a browser can do it. That is exactly how the ClearTix Scanner works.
How browser check-in works
When you open the ClearTix Scanner in a browser — on a phone, a tablet, or even a PC with a webcam — it asks for permission to use the camera. That's the only setup step. Point the camera at a ticket's QR code and the browser decodes it and checks it against the event's ticket list, which the scanner downloaded from ClearTix when you opened it. You get one of three answers:
- Valid — the ticket is genuine and hasn't been used. Let the guest in.
- Already Scanned — the code was checked in earlier (with the time it happened). Useful for spotting screenshots passed between friends.
- Invalid — the code doesn't belong to this event.
The check takes a fraction of a second. There's no installation, no app store, no per-device licence. A volunteer signs in — with their own ClearTix account or a shared scanner PIN — and is ready to scan in under a minute, with no app to install.
Multiple scanners at once
Because the scanner is just a web page tied to your event, you can open it on as many phones as you like. Five gates, five phones — each one talks to the same central record. With a connection, every scan is checked with ClearTix as it happens, so a ticket scanned at gate 1 almost always shows as used straight away at gate 3. Each person signs in (with their own account or a shared scanner PIN), so only authorised staff can check anyone in — and giving multiple staff their own scanning access (team members with a scanner role) is a Studio and Pro feature. We go deeper on this in our guide to scanning festival tickets across multiple gates.
What happens when the signal is bad
This is the part organisers worry about most. Venues are often basements, fields, or old buildings with thick walls and terrible reception. A purely online scanner would grind to a halt.
The ClearTix Scanner keeps working when the signal is weak or drops for a moment. You do need an internet connection to open or reload the scanner.
The phones never talk to each other directly. On every scan, the scanner asks the ClearTix server whether the ticket is still unused and waits at most a second for the answer. With a connection, a ticket already scanned at gate A therefore almost always shows as "Already Scanned" at gate B straight away. If two gates scan the same code at the same moment, the server accepts only one of them. If no answer comes back within that second, the scanner checks the ticket against the list on the phone and passes the scan on as soon as it can. Only in that case can the same code get in at two gates; the earliest scan counts as the check-in. Each scanner also picks up the other scanners' scans about every 30 seconds. Two practical tips:
- Set up venue wifi, a hotspot or a phone with good 4G/5G coverage at the main entrance.
- Spread the queue over several scanners so no single device has to handle the whole line.
Pros and cons
| Browser scanner | Native app | |
|---|---|---|
| Setup time | Sign in, allow camera | Install, sign in, update |
| Works on any device with a camera | Yes | Depends on OS version |
| Extra devices | Free, unlimited | Often licensed per device |
| Works without any internet | No, it needs a connection to start | Sometimes better |
| Storage needed | None | Hundreds of MB |
For a multi-day festival deep in a field with no signal at all, a heavy offline-first native app can have an edge. For the vast majority of events — a theatre night, a club dinner, a weekend market, a yoga workshop — a browser scanner is faster to set up and cheaper to run.
Getting started
With ClearTix, every event comes with the scanner built in. You sell tickets, guests receive a QR code by email (and can add it to their wallet), and on the day your staff sign in to the scanner on any phone — with their own account or a shared scanner PIN — with no app to install. No licences, no per-device fees, no install drama.
Tickets are delivered with a fixed fee per ticket rather than a percentage, so a busy door doesn't cost you more in commission. See exactly what that looks like on our pricing page and explore what's included under features.