QR Code Generator
QR (Quick Response) codes are two-dimensional barcodes that can store text, URLs, contact information, and more. They are widely used for marketing, payments, authentication, and sharing information quickly between devices.
This tool generates customizable QR codes in real-time as you type. You can adjust the foreground and background colors, choose the size, and select the error correction level. Higher error correction allows the QR code to remain readable even if partially damaged or obscured.
How it works
QR codes use Reed-Solomon error correction with four levels: L (~7% recovery), M (~15%), Q (~25%), H (~30%). Higher correction means more data redundancy but larger codes.
Use cases
- Creating QR codes for website URLs and marketing campaigns
- Generating QR codes for WiFi network sharing
- Creating scannable codes for business cards and contact info
- Embedding QR codes in printed materials for digital interaction