What is QR Code Generator Online?
A QR Code (Quick Response code) is a two-dimensional barcode that allows users to instantly access information via a smartphone camera. Our QR code generator online tool allows you to create high-resolution QR codes for free. Whether you are sharing a website URL, contact details (vCard), WiFi credentials, or simple text, this tool ensures your codes are perfectly scannable and ready for print or digital use. Modern QR codes support advanced features like error correction, which allows the code to be read even if up to 30% of it is obscured or damaged. This makes it ideal for marketing materials, restaurant menus, and physical signage. Customise your code's size to fit your design requirements and download it instantly in PNG format. Privacy is integrated into the tool. All code generation happens entirely within your browser — your URLs and text data never reach our servers. This ensures that your private information remains private while you generate all the codes you need for your business or personal projects.
How to Use QR Code Generator Online
- Enter the URL or text you want to encode.
- Adjust size and error correction level.
- The QR code preview updates instantly.
- Click Download to save the PNG image.
Developer Tips
Avoid encoding very long URLs in QR codes. The more data you add, the denser the dots become, which makes them harder to scan on smaller screens or in low light. Use a URL shortener if your link is excessively long.
Frequently Asked Questions
What is error correction in QR codes?
QR codes have four error correction levels (L, M, Q, H). Higher levels let the code remain readable even if up to 30% is damaged or covered. Use H for codes that will be printed on surfaces.
What is the maximum data a QR code can store?
A QR code can store up to 7,089 numeric characters, 4,296 alphanumeric characters, or 2,953 bytes of binary data. For URLs, keep them as short as possible.