How to Scan QR Codes Online
Our QR code scanner works directly in your browser — no app needed. Allow camera access to scan in real-time, or upload an image containing a QR code. The decoder processes everything locally on your device.
What QR Codes Can Contain
- URLs: The most common use — links to websites, landing pages, or downloads
- Plain text: Encoded messages or notes
- Wi-Fi credentials: Network name, password, and encryption type — scan to connect without typing
- vCard contacts: Name, phone, email, address — scan to add someone to your contacts
- Calendar events: Event title, date, time, location — scan to add to your calendar
- Email: Pre-filled recipient, subject, and body
- SMS: Pre-filled phone number and message
- Geographic coordinates: Latitude/longitude that open in maps
QR Code Error Correction
QR codes have built-in error correction, meaning they can still be read even if partially damaged or obscured. There are four error correction levels:
- L (Low): ~7% of data can be restored
- M (Medium): ~15% of data can be restored
- Q (Quartile): ~25% of data can be restored
- H (High): ~30% of data can be restored — this is why QR codes with logos in the center still work