QR Code Data Capacity

Error CorrectionRecoveryMax AlphanumericBest For
L (Low)7%4,296Clean environments, max data
M (Medium)15%3,391General use
Q (Quartile)25%2,420Factory, warehouse
H (High)30%1,852Outdoor, logos over code

Common QR Format Strings

TypeFormat
URLhttps://example.com
Emailmailto:user@example.com
Phonetel:+1234567890
SMSsms:+1234567890?body=Hello
Wi-FiWIFI:T:WPA;S:NetworkName;P:Password;;

Practical Tips