QR Code Generator
Generate QR codes for URLs, text, WiFi, vCards, email, and more. Customize colors and size. Download as PNG or SVG.
How It Works
QR (Quick Response) codes encode data in a 2D pattern of black and white squares that can be read by smartphone cameras. This generator creates QR codes client-side in your browser — your data never leaves your device. You can encode URLs, plain text, WiFi network credentials, contact information (vCard), email addresses, phone numbers, and SMS messages. Customize the foreground and background colors, adjust the size, and download in PNG or SVG format.
Frequently Asked Questions
Are the QR codes generated here free to use?
Yes, all QR codes generated on RandoFox are completely free for personal and commercial use. There are no watermarks, no signup required, and no limits on how many you can create.
Do QR codes expire?
Static QR codes (like the ones generated here) never expire. The data is encoded directly in the QR code pattern. As long as the destination (like a URL) remains active, the QR code will work forever.
What size should my QR code be for printing?
For reliable scanning, QR codes should be at least 2cm × 2cm (about 0.8 inches) for close-range scanning. For posters or signs viewed from a distance, use the rule: scanning distance ÷ 10 = minimum QR code size.
Can I customize the colors of my QR code?
Yes! You can change both the foreground (dark) and background (light) colors. For best scanning results, maintain high contrast between the two colors. Dark foreground on light background works best.