QR Code Generator: Create QR Codes Online — Complete Guide

Generate QR codes for URLs, WiFi, vCards, and more. Complete guide with JavaScript, Node.js, and Python. QR Code Structure +--+--+--+--+--+--+--+ |FP| |FP| | | DATA | | | | | | | | |TP| | | | | | | |FP| | | +--+--+--+--+--+--+--+ |TP| FP = Finder Pattern (7×7 squares) TP = Timing Pattern (alternating B/W) Error Correction Levels Level Recovery Capacity Use Case L 7% Highest Digital displays only M 15% High Most use cases (default) Q 25% Medium Industrial/print H 30% Lowest Logos embedded JavaScript (Browser) — qrcode.js <!-- CDN --> <script src= "https://cdn.jsdelivr.net/npm/qrcode/build/qrcode.min.js" ></script> <canvas id= "qr" ></canvas> <script> QRCode . toCanvas ( document . getElementById ( ' qr ' ), ' https://viadreams.cc ' , { errorCorrectionLevel : ' M ' , width : 256 , color : { dark : ' #000000 ' , light : ' #ffffff ' } }); </script> Node.js — qrcode Package import QRCode from ' qrcode ' ; // Terminal output (for CLI tools) QRCode . toString ( ' https://viadreams.cc ' , { ty