QR Code Generator tool
2026-01-07
What this tool does
The new qr-code-generator command generates QR codes from any text, URL, or data input. It features advanced customization options and multiple output formats for professional use.
Key features:
- Customizable size (256x256 to 1024x1024 pixels)
- Multiple formats (PNG, JPEG, WebP)
- Adjustable margins (0-4 pixels)
- Real-time preview
- Direct download
- Share functionality
How to use
Run the command:
qr-code-generator
Enter your text or URL, adjust the settings as needed, and click “Generate QR Code”. The tool creates the QR code instantly and provides download and sharing options.
Technical implementation
The tool uses a dual approach for maximum reliability:
- Client-side generation: Uses QRCode.js library for instant, offline generation
- API fallback: Falls back to qr-server.com API if the library fails to load
This ensures the tool works even in restricted environments or when CDN resources are unavailable.
Use cases
Business applications
- Contact cards (vCards)
- WiFi network sharing
- Event tickets
- Product information
Personal use
- Website links
- Social media profiles
- Payment information
- Text messages
Development
- API endpoints
- Configuration data
- Test data encoding
- Documentation links
Customization options
Size control
Choose from predefined sizes or implement custom dimensions for specific requirements.
Format selection
- PNG: Best quality, transparency support
- JPEG: Smaller file size, web optimization
- WebP: Modern format, best compression
Margin settings
Control white space around QR codes for better scanning reliability.
Sharing features
The tool includes native sharing capabilities:
- Web Share API on supported devices
- Clipboard fallback for broader compatibility
- Social media sharing links
Why this matters
QR codes have become essential for bridging physical and digital experiences. This tool makes QR code generation accessible and customizable for developers and businesses.
The combination of technical reliability, customization options, and sharing features makes this a comprehensive solution for QR code needs.