QR Code Generator

Free Online QR Code Generator — No Limits, No Ads

This QR code generator implements the full ISO/IEC 18004 algorithm in the browser: Galois field arithmetic, Reed-Solomon error correction, matrix construction, all 8 mask patterns with penalty scoring. Your data never leaves the browser.

Error correction levels

• L (7%) — smallest QR code, for clean print surfaces
• M (15%) — default, good balance of size and reliability
• Q (25%) — for items that may get dirty or partially damaged
• H (30%) — maximum recovery, use when adding a logo over the QR

See also

• TOTP Generator
• Unicode Inspector
• URL Encoder / Decoder