QR Code Generator

A QR code is a grid of dark and light squares called modules that stores your text as data. This tool encodes your text in your browser with a reputable open-source library and draws the result onto a canvas. Because it creates a static code, the information is stored in the pattern itself. There is no redirect through our servers, no tracking and nothing that can expire.

The trade-off is that a static code cannot be edited after printing. If you need to change the destination later or count scans, you would need a dynamic code service, which typically involves an account and often a subscription.

Use a dark code on a light background with strong contrast, and keep the quiet zone, which is the empty border around the code, at around 4 modules. Do not stretch or crop the code, and avoid very small prints: a commonly suggested minimum is about 2 centimetres on each side for close-range scanning, with more for greater distances. Higher error correction levels let a code survive more damage, up to roughly 30 percent at level H, but they make the pattern denser, so very long text works best at a lower level. Always test with at least one phone before printing many copies.

Plain text and web addresses work everywhere. Many phone cameras also understand special formats typed directly into the box: tel:+911234567890 starts a call, mailto:name@example.com opens an email, and WIFI:T:WPA;S:NetworkName;P:Password;; offers to join a Wi-Fi network. Only encode what you are comfortable having anyone who scans the code read. A printed Wi-Fi password, for example, is visible to everyone who can see the poster.