QR Code Generator

• Text and URL — the most common case; the camera opens the address directly.
• Email — opens the mail app with recipient, subject and body prefilled.
• Phone and SMS — starts a call or a message with the number and text ready.
• Wi-Fi — connects the device to a network without typing the password, using SSID, password and encryption type.
• vCard — adds a contact with name, phone, email and organisation.

A QR code does not store "a link" or "a contact": it stores text. What makes cameras react differently is the format of that text, defined by conventions operating systems recognise.

An email becomes a mailto address with subject and body encoded as parameters. A Wi-Fi network becomes a string with fields separated by semicolons.

Those separators need escaping when they appear inside the data itself. A Wi-Fi password containing a semicolon would break parsing if inserted raw — which is why special characters are escaped automatically.

A QR code embeds redundancy that allows reading even when part of it is damaged, covered or overlaid with a logo. The higher the correction level, the more robust and the denser the code.

More text means more modules — the little squares — and harder reading from a distance or in small print. Short URLs produce visibly cleaner codes.

The white margin around the code is not decoration: without it the camera cannot find the code boundary. Preserve that space when placing a QR in a layout.

Contrast matters more than colour. A light code on a dark background often fails, because readers expect dark modules on a light field.

Generation happens entirely in your browser. Nothing you type — including a Wi-Fi password — is sent to a server.

The generated code is static: the content is baked in permanently. If the destination URL changes, the printed code stops working. For long-lived print material, point it at an address you own and can redirect later.