QR Code Generator

What is a QR Code?

QR (Quick Response) codes are two-dimensional barcodes that can store various types of information including URLs, text, contact information, WiFi credentials, and more. They can be quickly scanned using smartphone cameras, making them ideal for sharing information instantly without typing.

Originally developed in 1994 for tracking automotive parts, QR codes have become ubiquitous in marketing, payments, authentication, and information sharing. Their ability to store up to 4,296 alphanumeric characters makes them versatile for many applications.

How to Use This QR Code Generator

1. Enter your content in the text area - this can be a URL, plain text, email address, phone number, or WiFi credentials

2. Choose your desired QR code size from 200x200 to 1000x1000 pixels

3. Select the error correction level based on your needs

4. Preview the QR code in real-time

5. Click 'Download PNG' to save the high-quality image

The QR code generates instantly as you type, with no delays or server processing. You can create unlimited QR codes completely free.

Common QR Code Use Cases

**Website URLs**: Share links to your website, social media profiles, or online resources. Perfect for business cards, flyers, and marketing materials.

**WiFi Sharing**: Generate QR codes with WiFi credentials so guests can connect instantly without typing passwords.

**Contact Information**: Create vCard QR codes with your contact details for easy addition to address books.

**Email & Phone**: Enable quick communication by encoding email addresses or phone numbers.

**Product Information**: Link to product pages, manuals, or promotional offers on packaging.

**Event Tickets**: Generate unique QR codes for event check-ins and attendance tracking.

**Payment Links**: Share payment pages for quick and easy transactions.

**App Downloads**: Direct users to app store listings for easy installation.

Understanding Error Correction Levels

QR codes include built-in error correction, allowing them to be scanned even if partially damaged or obscured. Choose the level based on your use case:

**Low (7%)**: Smallest QR code, suitable for digital displays where damage is unlikely.

**Medium (15%)**: Recommended for most applications. Good balance between size and resilience.

**Quartile (25%)**: Better for physical materials that might get worn or dirty.

**High (30%)**: Best for outdoor use, stickers, or situations where the code might be partially covered. Results in a more complex, larger code.

Best Practices for QR Codes

**Size Matters**: Ensure your QR code is large enough to scan from the intended distance. A minimum of 2x2 cm (0.8x0.8 inches) is recommended.

**High Contrast**: Use dark codes on light backgrounds for best scanning results.

**Test Before Printing**: Always test your QR code with multiple devices before mass production.

**Short URLs**: For URL QR codes, use URL shorteners to create simpler codes that are easier to scan.

**Add Context**: Include text near the QR code indicating what it links to (e.g., 'Scan for WiFi password').

**Quiet Zone**: Leave white space around the QR code - at least 4 times the size of one module (the small squares).

Privacy & Security

This QR code generator runs entirely in your browser using JavaScript. Your content never leaves your device - no data is uploaded to any server. This means you can safely generate QR codes for sensitive information like WiFi passwords, private URLs, or confidential text without privacy concerns. All processing happens instantly on your device, ensuring complete privacy and security.

Technical Specifications

Our QR code generator supports high-resolution output up to 1000x1000 pixels, suitable for both digital and print use. The generated PNG images use lossless compression, ensuring perfect quality for all applications.

QR codes support multiple character sets including numeric, alphanumeric, byte/binary, and Kanji. The maximum capacity depends on the error correction level and data type, ranging from 7,089 numeric characters to 2,953 bytes of binary data.