What is QR Code Generator Online?
A QR Code (Quick Response code) is a 2D barcode that smartphones can scan to access a URL, contact card, WiFi network, or any text data instantly. This tool generates QR codes entirely client-side — your data never reaches a server. Customise size and error correction level, then download as a high-resolution PNG.
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.
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.