QR Code Generator

A QR code generator turns a link or piece of text into a square barcode that a phone camera can read. QR codes, invented by Denso Wave in 1994, are now everywhere: payment stickers, restaurant menus, event tickets, product packaging and posters.

This generator creates codes for links, plain text, Wi-Fi networks, email addresses, phone numbers and SMS messages. You can choose the error correction level and colours, see the code update live, and download it as a scalable SVG for print or a 1,024-pixel PNG. Everything is generated in your browser, so private details such as a Wi-Fi password are never uploaded.

These are static QR codes: the link or text is stored in the pattern itself, so the code works forever and doesn't pass through anyone's server. Many "free" generators make dynamic codes that redirect through their site and stop working when a trial ends.

Error correction adds redundancy so a code still scans when part of it is dirty or covered: Low recovers about 7%, Medium 15%, Quartile 25% and High 30%, at the cost of a denser pattern. Keep a dark code on a light background; inverted or low-contrast colours fail on many phones.