QR I/O

Scan, create, and share QR codes with ease

QR I/O Main PWA

The full-featured QR code scanner and generator. Scan codes with your camera, create QR codes from text, and share them via multiple channels.

  • Camera-based QR scanning
  • Generate QR codes from text
  • Share via Email, System Share, or MQTT
  • Auto-send to WebSocket/HTTP endpoints
  • Works offline (PWA)
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QR Receiver Working

Receive and display QR codes scanned from the Main app. Perfect for displaying scanned content on a second screen or computer.

  • Receive scans via MQTT
  • Real-time updates
  • Display on secondary screen
  • Pair with Main app via topic
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QR Payments PWA

Specialized app for Czech payment QR codes (SPAYD format). Scan payment QRs or create your own with IBAN, amount, and payment details.

  • Scan SPAYD payment QR codes
  • Create payment QRs with IBAN
  • Variable/Constant/Specific symbols
  • CZK currency support
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