N8N QR Code Generator Node

An N8N community node for QR Code generation with support for PIX payments, URLs, WiFi networks, and structured data.

Features

• ✅ QR Code Generation for different content types
• ✅ PIX Support - Brazilian instant payments with PIX keys
• ✅ URLs and Text - Custom links and plain text
• ✅ WiFi Networks - Share WiFi credentials easily
• ✅ vCard Contacts - Contact information sharing
• ✅ Flexible Configuration - Size, colors, error correction
• ✅ Multiple Formats - Base64, Data URL, Buffer

Installation

npm install n8n-nodes-qrcode-generator

Supported Content Types

1. Text/URL

• Plain text
• URLs and links
• Structured JSON data

2. PIX Payment

• PIX Key (CPF, CNPJ, email, phone, random key)
• Merchant name
• Amount (optional - leave 0 for variable amount)
• City
• Transaction ID (optional)

3. WiFi Network

• Network name (SSID)
• Password
• Security type (WPA/WPA2, WEP, None)

4. vCard Contact

• Full name
• Phone number
• Email address
• Organization

Advanced Settings

• Output Format: Base64 Data URL, Base64 String, or Buffer
• Size: Width in pixels (default: 300px)
• Error Correction Level: Low, Medium, Quartile, High
• Margin: Spacing around the QR Code
• Colors: Customize dark and light colors

Usage Examples

PIX Payment

{
  "pixKey": "user@email.com",
  "merchantName": "Example Store",
  "amount": 25.50,
  "city": "São Paulo",
  "transactionId": "TXN123"
}

WiFi Network

{
  "wifiSSID": "MyNetwork",
  "wifiPassword": "password123",
  "wifiSecurity": "WPA"
}

Development

# Install dependencies
npm install

# Build
npm run build

# Development with watch
npm run dev

# Lint
npm run lint

PIX Implementation

This node implements the official Brazilian PIX EMV QR Code specification from the Central Bank of Brazil (BCB), ensuring compatibility with all PIX-enabled banking applications.

License

MIT