QR Code Generator
A free online tool to convert text or URLs into QR codes
Settings
0 chars
Higher levels allow recognition of damaged QR codes
Preview
Enter text and click the generate button
Modules: -Size: -Correction: -
What is a QR Code?
A QR Code (Quick Response Code) is a type of two-dimensional barcode that can encode various data such as text, URLs, and contact information. Developed by Denso Wave of Japan in 1994, it is widely used in mobile environments as it can be easily scanned with a smartphone camera. It is utilized in various fields including payments, authentication, marketing, and inventory management.
How to Use
- Enter the text or URL to convert into a QR code.
- Set the size, color, error correction level, and other options as desired.
- Click the \"Generate QR Code\" button to display the QR code on the right.
- Download as a PNG file or copy to clipboard to use.
Frequently Asked Questions
The error correction level determines the ability to recover data even when a QR code is partially damaged or obscured. There are 4 levels: L(7%), M(15%), Q(25%), and H(30%). Higher levels can withstand more damage but increase the QR code size. Level H is recommended if you want to embed a logo.
No. The entire QR code generation process is handled directly in the browser, and the entered text or URL is not sent to any external server. Your privacy is fully protected.
A QR code can store up to approximately 4,296 alphanumeric characters or 7,089 numeric characters. However, more data makes the QR code more complex and harder to scan, so it is recommended to use short URLs or text when possible.
Yes, scanning is possible as long as there is sufficient contrast between the foreground and background colors. However, the foreground color must be darker than the background, and too low contrast may reduce recognition rates. The default black and white combination is the most reliable.