QR Code Generator
Generate QR codes locally in your browser - fast, secure, and privacy-friendly
Enter text above to generate QR code
About QR Codes
QR (Quick Response) codes are two-dimensional matrix barcodes that can store various types of data and be quickly scanned by smartphones and other devices.
Fast Scanning
Instant recognition and decoding
High Capacity
Store up to 3KB of data
Error Recovery
Works even when damaged
Omnidirectional
Readable from any angle
When to Use QR Codes
- • Sharing website URLs quickly
- • Contact information exchange
- • WiFi network sharing
- • Event check-ins and tickets
- • Product information and manuals
- • Payment and transaction links
Key Advantages
- • No typing required for users
- • Works offline after generation
- • Universal smartphone support
- • Customizable size and quality
- • Free to generate and use
- • No expiration date
Best Practices
- • Test on multiple devices
- • Use sufficient contrast
- • Include error correction
- • Keep data concise
- • Provide context for users
- • Ensure adequate size for scanning
QR Code Data Types
🌐Website URL
https://example.com
📧Email Address
mailto:user@example.com
📞Phone Number
tel:+1234567890
💬SMS Message
sms:+1234567890?body=Hello
📶WiFi Network
WIFI:T:WPA;S:NetworkName;P:Password;;
📍GPS Location
geo:37.7749,-122.4194
Error Correction Levels
Higher error correction allows QR codes to be readable even when partially damaged or obscured.
Level L (Low)
~7% error correction capability
Best for clean, controlled environments
Level M (Medium)
~15% error correction capability
Standard level for most applications
Level Q (Quartile)
~25% error correction capability
Good for industrial or outdoor use
Level H (High)
~30% error correction capability
Best for damaged or dirty surfaces
🔒Privacy & Security
This QR code generator works entirely in your browser without sending any data to external servers.
- • No data transmitted to external APIs
- • Generated locally using React components
- • Your information stays on your device
- • No tracking or analytics
- • Open source implementation
Technical Information
QR Code Specifications
- Standard:ISO/IEC 18004:2015
- Max Data Capacity:2,953 bytes
- Supported Versions:1-4 (21x21 to 33x33)
- Error Correction:Reed-Solomon
- Character Sets:UTF-8 Unicode
Local Implementation
- • Canvas-based rendering
- • Client-side matrix generation
- • Real-time preview updates
- • Customizable output formats
- • No external dependencies