Advanced QR Code Generator | Create Free QR Codes Online Instantly

QR Code Settings

Will generate QR code for: https://www.example.com
Will generate QR code with custom text
Will generate QR code that opens email client
Will generate QR code that initiates a phone call
Will generate QR code that opens SMS app with pre-filled message
Will generate QR code that connects to WiFi network
Will generate QR code with contact information (vCard)
QR Color:
BG Color:

QR Code Output

QR code will appear here after generation

QR Code Generator: Complete Documentation

Overview

The QR Code Generator is a comprehensive tool that allows you to create various types of QR codes for different purposes. This tool supports multiple QR code formats and provides extensive customization options.

Supported QR Code Types

This generator supports 7 different types of QR codes:

Type Icon Description & Use Case
URL QR Code Link Creates a QR code that directs users to a specific website URL. Perfect for marketing materials, business cards, or blog posts to drive traffic to your website.
Text QR Code Text Encodes plain text messages. Useful for sharing quotes, instructions, or any textual information that doesn't require internet access to read.
Email QR Code Email Generates a QR code that opens the user's email client with pre-filled recipient, subject, and body. Great for contact forms or newsletters.
Phone QR Code Phone Creates a QR code that initiates a phone call when scanned. Ideal for business cards or contact information sharing.
SMS QR Code SMS Generates a QR code that opens the SMS app with a pre-filled phone number and message. Useful for promotions or customer support.
WiFi QR Code WiFi Creates a QR code that automatically connects devices to a WiFi network. Perfect for cafes, hotels, or events.
Contact QR Code Contact Generates a vCard QR code that saves contact information directly to the user's phone. Excellent for networking events.

Customization Options

The tool offers several customization features:

Size Options

  • 128x128 pixels - Small size, suitable for digital use
  • 256x256 pixels - Medium size (recommended for most uses)
  • 400x400 pixels - Large size, good for print materials
  • 512x512 pixels - Extra large, ideal for posters or banners

Color Customization

  1. QR Color: Customize the color of the QR code pattern
  2. Background Color: Change the background color of the QR code

How to Use the Generator

Step-by-Step Instructions

  1. Select QR Code Type: Click on one of the 7 available types (URL, Text, Email, Phone, SMS, WiFi, or Contact)
  2. Enter Required Information: Fill in the necessary fields for the selected QR code type
  3. Customize Appearance:
    • Choose the desired size from the dropdown menu
    • Select colors for the QR code and background
  4. Generate QR Code: Click the "Generate QR Code" button
  5. Download: Once generated, click "Download PNG" to save the QR code
  6. Optional: Enter a custom file name before downloading

Technical Details

Data Encoding Formats

QR Code Type Data Format Example
URL Standard URL format https://www.example.com
Email mailto: protocol mailto:email@example.com?subject=Hello&body=Message
Phone tel: protocol tel:+1234567890
SMS sms: protocol sms:+1234567890?body=Hello
WiFi WIFI: protocol WIFI:S:NetworkName;T:WPA;P:Password;;
vCard vCard 3.0 format BEGIN:VCARD\nVERSION:3.0\nFN:John Doe\n...\nEND:VCARD

Error Correction Levels

The generator uses High (H) error correction level, which means:

  • Can recover from up to 30% damage to the QR code
  • Ideal for printed materials that might get damaged
  • Makes the QR code slightly larger but more reliable

Best Practices

For Bloggers and Content Creators

  1. Test Before Publishing: Always scan your QR codes with multiple devices before publishing
  2. Size Matters: Use larger QR codes (400px+) for print materials and smaller ones (256px) for digital use
  3. Color Contrast: Ensure sufficient contrast between QR code color and background for optimal scanning
  4. White Space: Leave sufficient white space around the QR code (quiet zone)

Recommended Use Cases

Platform Recommended QR Code Type Purpose
Blog Posts URL QR Code Link to additional resources or related content
Business Cards Contact QR Code Share contact information digitally
Restaurants/Cafes WiFi QR Code Provide easy WiFi access to customers
Event Flyers SMS or Email QR Code Allow quick sign-ups or inquiries
Product Packaging URL or Text QR Code Provide instructions or product information

Troubleshooting Common Issues

QR Code Not Scanning

  • Insufficient contrast: Ensure dark QR code on light background or vice versa
  • Too small: Increase the QR code size, especially for print
  • Damage to quiet zone: Ensure white space around the QR code is preserved

Download Issues

  1. Check if the QR code has been generated successfully
  2. Ensure you have given a valid file name (avoid special characters)
  3. Check browser permissions for downloading files

Technical Specifications

  • Library Used: QRCode.js (version 1.0.0)
  • Image Format: PNG (Portable Network Graphics)
  • Client-side Processing: All generation happens in browser
  • No Data Storage: No information is sent to external servers
  • Browser Compatibility: Works on all modern browsers (Chrome, Firefox, Safari, Edge)

Additional Notes

Privacy and Security: Since all QR code generation happens locally in your browser, no data is transmitted to external servers, ensuring complete privacy for your information.

Mobile Compatibility: The generator is fully responsive and works on mobile devices, tablets, and desktop computers.

File Naming: You can customize the downloaded file name to make it easier to organize your QR codes.

Contact Information

For questions or suggestions about this QR Code Generator tool, please refer to the original implementation or contact the developer through appropriate channels.

Last Updated: This documentation is current as of the latest implementation.