QR Code Generator
Generate custom QR codes online, supporting text, URLs, and business cards with customizable colors and sizes
Enter content to generate QR code
What is a QR Code?
QR Code (Quick Response Code) is a matrix barcode that can store text, URLs, contact information, and more. Compared to traditional barcodes, QR codes can store more data and can be quickly scanned by smartphones.
How to Use
- Enter text, URL, or other content in the input field
- Adjust foreground color, background color, size, and other parameters
- Choose an appropriate error correction level (higher means better damage resistance)
- Click the 'Generate QR Code' button
- Download as PNG or SVG format image
Common Uses
- Website Links: Convert webpage URLs to QR codes for easy mobile scanning
- Text Information: Store contact details, product descriptions, and other text
- Business Card Sharing: Generate QR codes containing name, phone, and email
- Payment Collection: Generate payment QR codes for easy scanning
- WiFi Connection: Encode WiFi name and password as QR code for instant connection
FAQ
Q: How much information can a QR code store?
A: A QR code can store approximately 7000 digits or 4000 letters. However, more content makes the QR code more complex, so it's recommended to keep it within a few hundred characters for better scanning success.
Q: What does error correction level mean?
A: Error correction level determines the QR code's damage resistance. Level L recovers 7% data, M 15%, Q 25%, H 30%. Higher levels make larger QR codes but better damage resistance.
Q: Will generated QR codes be uploaded to servers?
A: No. All generation happens locally in your browser. Your data never uploads to any server, protecting your privacy.
Q: What's the difference between PNG and SVG formats?
A: PNG is a bitmap format suitable for web and documents; SVG is a vector format that can be scaled without quality loss, suitable for printing and large displays.