qrcode-terminal

What is qrcode-terminal?

The qrcode-terminal package allows you to generate QR codes directly in your terminal. This is particularly useful for CLI applications and development tools where displaying a QR code in a graphical user interface is not feasible. The QR codes generated can encode URLs, text, or other data, and can be scanned using a smartphone or any other QR code reader.

What are qrcode-terminal's main functionalities?

Generate QR Code in Terminal

This feature allows you to generate a QR code in the terminal. The example provided generates a QR code for the URL 'https://www.example.com'. The option 'small: true' makes the QR code compact.

const qrcode = require('qrcode-terminal');

qrcode.generate('https://www.example.com', { small: true }, function (qrcode) {
    console.log(qrcode);
});

Other packages similar to qrcode-terminal

qrcode

The 'qrcode' package is a more versatile library for generating QR codes. It supports generating QR codes in various formats including image files, which makes it suitable for both server-side and client-side applications. Unlike qrcode-terminal, which is limited to terminal output, qrcode can be used in a broader range of applications.

qr-image

This package allows you to generate QR codes as PNG, SVG, EPS, or PDF files. It is similar to qrcode-terminal in that it encodes data into QR codes, but it offers more output formats, making it more flexible for different use cases where file outputs are required rather than terminal display.

README

QRCode Terminal Edition

Going where no QRCode has gone before.

Node Library

Install

Can be installed with:

$ npm install qrcode-terminal

and used:

var qrcode = require('qrcode-terminal');

Usage

To display some data to the terminal just call:

qrcode.generate('This will be a QRCode, eh!');

You can even specify the error level (default is 'L'):

qrcode.setErrorLevel('Q');
qrcode.generate('This will be a QRCode with error level Q!');

If you don't want to display to the terminal but just want to string you can provide a callback:

qrcode.generate('http://github.com', function (qrcode) {
    console.log(qrcode);
});

If you want to display small output, provide opts with small:

qrcode.generate('This will be a small QRCode, eh!', {small: true});

qrcode.generate('This will be a small QRCode, eh!', {small: true}, function (qrcode) {
    console.log(qrcode)
});

Command-Line

Install

$ npm install -g qrcode-terminal

Usage

$ qrcode-terminal --help
$ qrcode-terminal 'http://github.com'
$ echo 'http://github.com' | qrcode-terminal

Support

• OS X
• Linux
• Windows

Server-side

node-qrcode is a popular server-side QRCode generator that renders to a canvas object.

Developing

To setup the development envrionment run npm install

To run tests run npm test

Contributers

Gord Tanner <[e-mail]>
Micheal Brooks <[e-mail]>