Generate a QR code for any text or URL.

Client-side QR code generator. Encodes arbitrary text, URLs, or structured data (vCard, Wi-Fi) into a QR code. Configurable error correction level (L/M/Q/H) and output size. Downloadable as PNG or SVG.

Uses qrcode.js or qrcode-generator library for Reed-Solomon error correction encoding. Error correction levels correspond to data recovery capacity: L (7%), M (15%), Q (25%), H (30%). Module size and quiet zone configurable. SVG output generated as path data for resolution independence. Encoding mode auto-selected: numeric, alphanumeric, byte (UTF-8), or kanji per content.