Simple QR Code Generator: A Lightweight, Browser-Based Tool

Today, I’m sharing a simple yet effective tool I’ve developed: a browser-based QR Code Generator. In an era where QR codes have become ubiquitous, having a quick, reliable, and privacy-focused way to generate them is essential.

Why Another QR Code Generator?

While there are numerous QR code generators available online, I wanted to create one that is:

• Completely client-side with no server dependencies
• Privacy-focused (no data collection or tracking)
• Lightning fast and responsive
• Simple and straightforward to use
• Free from ads and distractions

Features

The tool offers essential QR code generation capabilities:

1. Text/URL Input: Generate QR codes for any text or URL
2. Customizable Size: Adjust the QR code size to your needs
3. Instant Generation: See QR codes generated in real-time
4. Download Option: Save generated QR codes as PNG images
5. Mobile Friendly: Works perfectly on both desktop and mobile devices

How to Use

The interface is intentionally minimalist:

1. Visit https://static.sanjaysingh.net/qrcode/
2. Enter your text or URL in the input field
3. Adjust the size if needed (default size works for most cases)
4. Click “Generate QR Code”
5. Use “Download QR Code” to save the image

Technical Implementation

The tool is built with simplicity and performance in mind:

// Core technologies used:
- Pure HTML5 and JavaScript
- QRCode.js library for QR generation
- CSS for minimal, clean styling

Key technical features:

• No external dependencies beyond the QR code library
• Completely static deployment
• No backend required
• Cross-browser compatible
• Mobile-responsive design

Privacy and Security

Privacy was a key consideration in the design:

• No Data Storage: All QR code generation happens in your browser
• No Analytics: No tracking or usage monitoring
• No External Calls: Besides loading the page, no network requests are made
• Open Source: Code is available on GitHub for review

Use Cases

This tool is perfect for:

1. Business Users:
   • Creating QR codes for business cards
   • Adding QR codes to marketing materials
   • Generating quick links for presentations
2. Personal Use:
   • Sharing Wi-Fi credentials
   • Creating quick links to social profiles
   • Generating contact information QR codes
3. Developers:
   • Quick testing of QR code implementations
   • Generating QR codes for documentation
   • Creating QR codes for app testing

Benefits

1. Speed and Efficiency:
   • Instant QR code generation
   • No page reloads needed
   • Quick download option
2. Accessibility:
   • Works on any device with a browser
   • No installation required
   • Simple, intuitive interface
3. Privacy:
   • No data collection
   • No account needed
   • No cookies or tracking

Future Enhancements

While keeping the tool simple, I’m considering adding:

• Color customization options
• Error correction level selection
• SVG export format
• QR code scanning capability
• Batch generation feature

Try It Out

You can access the QR Code Generator at: https://static.sanjaysingh.net/qrcode/

The source code is available on GitHub

Contributing

As with all my tools, this QR code generator is open source. Feel free to:

• Report issues
• Suggest improvements
• Submit pull requests
• Share your use cases