Introduction
Generador QR Pro is a modern, feature-rich QR code generator built with React 19 and Vite. It provides an intuitive interface for creating, customizing, and exporting professional-quality QR codes with multiple templates and advanced customization options.What is Generador QR Pro?
Generador QR Pro is a web-based application that allows users to generate QR codes for various use cases including URLs, WiFi credentials, contact information (vCards), and email links. The application features a clean, glassmorphic UI with real-time preview and high-quality export options.Key features
Multiple templates
Generate QR codes for URLs, WiFi networks, contact cards (vCard), and email links with dedicated input forms for each type.
Advanced customization
Customize foreground and background colors, adjust QR code size, control error correction levels, and add custom logos to the center of your QR codes.
High-quality exports
Export your QR codes as PNG images (high resolution, 2x scaling) or SVG vectors for infinite scalability without quality loss.
Real-time preview
See your QR code update in real-time as you modify data and customize appearance with live visual feedback.
Use cases and benefits
Business applications
- Create branded QR codes with your company logo
- Generate WiFi access codes for guests and customers
- Share contact information via scannable vCards
- Create promotional links with custom styling
Personal use
- Share website URLs and social media profiles
- Generate WiFi credentials for home networks
- Create email contact links with pre-filled subject lines
- Design custom QR codes for events and invitations
Benefits
- No server required: All QR generation happens in the browser for privacy and speed
- Professional quality: High error correction (up to Level H) ensures scannability even with logos
- Export flexibility: Choose between raster (PNG) and vector (SVG) formats based on your needs
- Easy customization: Intuitive color pickers and controls for complete design control
Technology stack
Generador QR Pro is built with modern web technologies:- React 19.2.0: Latest React version with improved performance and new features
- Vite 7.3.1: Lightning-fast build tool with hot module replacement (HMR)
- qrcode.react 4.2.0: Robust QR code generation library with Canvas and SVG support
- Lucide React 0.576.0: Beautiful, consistent icon library
- ESLint: Code quality and consistency enforcement
The application uses both
QRCodeCanvas and QRCodeSVG components from qrcode.react - SVG for display and vector export, Canvas for high-resolution PNG export.QR code templates
Generador QR Pro supports four different QR code types:| Template | Icon | Use Case | Data Format |
|---|---|---|---|
| URL | Link | Websites, social media, links | Plain URL string |
| WiFi | Wifi | Network credentials | WIFI:S:ssid;T:encryption;P:password;H:hidden;; |
| Contact (vCard) | User | Business cards, contacts | vCard 3.0 format with name, phone, email |
| Pre-filled email links | mailto: URL with subject and body |
Error correction levels
The application supports four QR code error correction levels:- L (Normal): ~7% error correction capability
- M (Buena): ~15% error correction capability
- Q (Alta): ~25% error correction capability
- H (Máxima): ~30% error correction capability - automatically used when logos are added
Next steps
Quickstart
Get up and running in minutes with our quick start guide
Installation
Detailed installation instructions and project structure overview