A browser based QR scan app with local processing

You can use Valid QR Scan as a QR scan app directly in your browser or add it to your home screen where supported. QR generation and image decoding run locally, so the tool does not need to upload your QR content for processing. Camera access starts only when you request it and grant permission.

Install and use the offline tools

Try the scanner, generator or QR checker. Your images and QR payloads are processed locally.

Install Valid QR Scan

In your browser menu, choose “Install app” or “Add to Home Screen”. On iPhone or iPad, open Share, then Add to Home Screen. In Safari on Mac, use File, then Add to Dock.

Visit once online and wait for “Offline tools ready”. Scanning and generation can then work without a connection. Opening a web destination still needs internet.

Preparing offline tools…