QR Code Generator

Generate QR codes for free: center logo, L/M/Q/H error correction, custom colors and size, or batch-generate from multiple lines. Browser-based, no signup.

All processing happens locally in your browser — nothing is uploaded

贴 logo 建议用 H,容错率 30%

Frequently Asked Questions

Can I use the generated QR codes commercially?

Yes. The generated codes have no copyright restrictions or watermarks — use them freely on business cards, posters, packaging, menus, or any commercial material.

Why does my QR code fail to scan?

Common causes: (1) size too small — export at 300×300px or larger; (2) content too long — raise the error-correction level to Q or H when over 300 characters; (3) logo too large — keep it under 30% of the code and use level H; (4) low contrast — ensure strong foreground/background difference.

What content types are supported?

URL links, plain text, Wi-Fi configs, vCard contacts, email, phone, and more. You can customize foreground/background colors, size, embedded logo, and 4 error-correction levels (L/M/Q/H).

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