QR Code Generator
Instant QR codes for URLs, text or vCards.
How this calculator works
Generates a QR code from any text, URL, or contact info. Rendered in-browser as SVG.
Great for sharing links, WiFi credentials, or app downloads.
QR codes use built-in error correction, meaning a portion of the code can be damaged, obscured by a logo, or printed poorly and still scan correctly — that redundancy is part of the original design specification, not a lucky side effect.
Example
Enter a URL and the tool renders a scannable QR code you can screenshot or download.
Frequently asked questions
What's the max QR code capacity?
Depends on error correction — up to ~4,296 alphanumeric characters. Long text produces dense codes that are harder to scan.
Can QR codes contain viruses?
The code itself just encodes text — but the URL it points to can be malicious. Preview the URL before opening.
Do QR codes expire?
The code itself never expires since it's just encoded text, but if it points to a URL, that link can break or be taken down independently of the code.