QR Code Generator - Custom Logo & Vector Download
Free high-density QR Code & Barcode generator. Customize colors, size, and error correction. Download SVG/PNG. Privacy-first, no tracking.
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Scanning Best Practices
- Contrast is Key: Scanners rely on the contrast between dark data modules and a light background. Avoid 'inverted' codes (light data on dark) unless you test thoroughly.
- Quiet Zone: Always leave a white border (margin) around the code equivalent to 4 modules wide. Without it, the scanner cannot distinguish usage data.
- Size Matters: For print, ensure the QR code is at least 2cm x 2cm. For billboards, calculate distance/10.
- Security: Avoid scanning unknown QR codes in public spaces to prevent 'QRLjacking' or phishing.