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fjordtools / Network / QR Code Generator

QR Code Generator: URL, Wi-Fi and Text

Make a QR code for a link, Wi-Fi login or any text in your browser. Choose error correction, colors and size, and download PNG or SVG. Nothing is uploaded.

Link or text
QR code
About QR Code Generatorhow it works and good to know

Make a QR code for a link, Wi-Fi or text

Type or paste a link, a message or any text and the code appears as you type. Choose Wi-Fi to make a code that lets guests join your network by pointing their camera at it: it carries the network name, the password and the security type.

Error correction

A QR code carries extra data so it still scans when it is smudged or partly covered. L recovers about 7% damage, M 15%, Q 25% and H 30%. More correction makes the code denser. Use M for screens and paper, and H if you will put a logo over the middle or print on a rough surface.

Make it scan

Keep a quiet margin of 4 modules around the code (the default) and use a dark code on a light background. Light codes on dark backgrounds fail in many scanners, and the page warns you when contrast is low or inverted. Print it at least 2 cm wide and test it with a phone first.

Limits

One code holds up to about 2,950 bytes of text (7,089 digits, 4,296 letters and symbols from the alphanumeric set). Non-English letters and emoji take two to four bytes each (UTF-8).

How it is tested

The encoder is checked against the qrencode program, module for module, for every version and error-correction level, and against the zbar scanner on generated images. The PNG and SVG you download are read back the same way.

Privacy

The code is made in your browser. The text, link and Wi-Fi password never leave your device.

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