What types of data can a QR code store?

URLs, plain text, email addresses, phone numbers, Wi-Fi credentials (SSID + password), vCards (contact info), SMS messages and GPS coordinates.

How much data can a QR code hold?

Up to 4,296 alphanumeric characters. Longer data creates denser codes that are harder to scan reliably — URLs under 100 characters scan best.

What error correction levels are available?

L (7% damage tolerance), M (15%), Q (25%) and H (30%). Higher correction makes codes scannable even if partially obscured or damaged, but increases density.

How do I decode a QR code from an image?

Switch to the decode tab, upload or drag-drop an image containing the QR code, and the encoded content is extracted instantly.

QR Code Generator & Reader