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.
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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