QR Code Generator
Generate QR codes from text, URLs, contact information, etc. with custom size and color support
QR Code Settings
QR Code Preview
Please enter content and click the generate QR code button
Instructions
Enter Content
Enter the content for QR code generation in the text box, such as URL, text, contact information, etc.
Set Parameters
Select the size and color of the QR code, and choose the appropriate type as needed.
Generate QR Code
Click the "Generate QR Code" button, and the system will generate the QR code according to the settings.
Download or Copy
After generation is complete, you can download the QR code image in PNG or JPG format, or copy the QR code.
QR Code Basics
What is a QR Code?
QR Code (Quick Response Code) is a matrix barcode that can store more information, including URLs, text, contact information, etc. By scanning with a mobile phone or dedicated device, the information contained can be quickly read.
Common QR Code Types
Automatically jumps to the specified webpage after scanning, suitable for website promotion, product advertising, etc.
Directly stores text information, suitable for business card information, product descriptions, event details, etc.
Contains WiFi name and password, can automatically connect to WiFi network after scanning, convenient for users.
Contains contact information such as name, phone, email, etc., can be saved to mobile phone address book with one click after scanning.
QR Code Error Correction Levels
QR codes have error correction functionality, allowing correct reading even if part is covered or damaged. This tool uses medium error correction level (M) by default, suitable for most scenarios.
Usage Tips
- To ensure QR code recognizability, it is recommended to generate QR codes with a size of at least 200×200 pixels.
- Choose color combinations with obvious contrast, such as black foreground and white background, to improve recognition rate.
- When adding logos or images, ensure the coverage area does not exceed 15% of the total QR code area to avoid affecting recognition.
- For important information, it is recommended to save in PNG format to ensure image quality.
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