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, sends the code to ClearTix, and gets back 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 whole exchange 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. A ticket scanned at gate 1 is instantly marked as used everywhere, so the same code can't sneak in 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 is built to keep working when the network is patchy:
- It loads your guest list when you start, so the basic check (does this code exist for this event?) happens on the device.
- Scans are queued locally and synced the moment a connection returns.
- The interface keeps responding even mid-field with one bar of signal.
The trade-off to be aware of: if two scanners are fully offline at the same moment and someone tries the same ticket at both, the duplicate is only caught once they reconnect. In practice this is rare, and for most events a single thin connection is enough to keep everything in sync live.
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 |
| Fully offline for hours | Limited | 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, cheaper to run, and far less fragile.
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.