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EasyQRCodeJS

EasyQRCodeJS is a flexible QR code generator using JavaScript, supporting various drawing methods (Canvas, SVG, Table) and customization options. It's compatible with major frameworks and can be directly downloaded in the browser.

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Install / Use

/learn @ushelp/EasyQRCodeJS
About this skill

Quality Score

0/100

Supported Platforms

Universal

README

EasyQRCodeJS

EasyQRCodeJS is a powerful, cross-browser QR code generation library that uses JavaScript and runs on DOM-based client browsers. It can be downloaded directly in the browser. It supports Canvas, SVG, and Table drawing methods. It provides flexible configurations, including dot style, Logo, background image, color, title, and support for binary (HEX) data mode. It is also compatible with Angular, Vue.js, React, Next.js, and Svelte frameworks.

EasyQRCodeJS 是使用 JavaScript 的一个强大的、跨浏览器的二维码生成库。运行在基于 DOM 的客户端浏览器，并能够在浏览器中进行下载。它支持Canvas、SVG和Table绘图方法。提供灵活的配置，包括点样式、Logo、背景图片、彩色，标题和二进制（十六进制）数据模式支持。它还能与Angular、Vue.js、React、Next.js和Svelte框架兼容。

Table of contents

Choose what you need

| Project | Support | | --- | --- | | EasyQRCodeJS | Running with DOM on CLIENT-SIDE . Browser(IE6+, Chrome, Firefox, Safari, Opera, Mobile Safari, Android, Windows Mobile, ETC.), Electron, NW.js, ETC. | | EasyQRCodeJS-NodeJS | Running without DOM on SERVER-SIDE. Save image to file(PNG/JPEG/SVG) or get data url text. NodeJS, Electron, NW.js, ETC.| | EasyQRCode-React-Native | A QRCode generator for React Native. Generate QRCode image or get base64 data url text.|

Feature

  • English

    • Cross-browser support for QR code generation based on HTML5 Canvas, SVG and Table

    • Support unicode character set: 😊❤️👍👨‍💻 Hello, こんにちは, こんにちは, Γεια, Привет, नमस्ते, สวัสดี, Привіт, سلام, Здравей, ສະບາຍດີ, Përshëndetje, Բարեւ, 你好

    • Download the QRCode image in the browser

    • Required Patterns that support dot style

    • Support for Quiet Zone settings

    • Support custom Position Pattern inner fill and outer border color

    • Support custom Alignment Pattern inner fill and outer border color

    • Support custom Timing Patterns vertical, horizontal color

    • Support Logo images (including transparent PNG images)

    • Support Background Image

    • Support for title, subtitle settings

    • Has no dependencies

    • Support AMD, CMD, CommonJS/Node.js JavaScript modules

    • Angular, Vue.js, React, Next.js, Svelte Support

    • Support binary(hex) data mode

    • Support TypeScript

  • 中文

    • 跨浏览器，支持基于 HTML5 Canvas, SVG 和 Table 的二维码生成

    • 支持 Unicode 字符集: 😊❤️👍👨‍💻 Hello, こんにちは, こんにちは, Γεια, Привет, नमस्ते, สวัสดี, Привіт, سلام, Здравей, ສະບາຍດີ, Përshëndetje, Բարեւ, 你好

    • 在浏览器中下载

    • 支持点形风格的 Required Patterns

    • 支持 Quiet Zone 设置

    • 支持自定义 Position Pattern 内填充和外边框颜色

    • 支持自定义 Alignment Pattern 内填充和外边框颜色

    • 支持自定义 Timing Patterns 垂直，水平颜色

    • 支持 Logo 图片（包括背景透明的 PNG 图片）

    • 支持 Background Image 背景图片

    • 支持标题，副标题设置

    • 不依赖任何第三方

    • 支持 AMD，CMD, CommonJS/Node.js JavaScript 模块加载规范

    • Angular, Vue.js, React, NEXT.js, Svelte 支持

    • 二进制数据模式支持

    • TypeScript 支持

Try It!

Try It!

Demo preview

Demo preview

QR Code Structure

QR Code Structure

Installation

Load

  • Script load

    <script src="<PATH>/easy.qrcode.min.js" type="text/javascript" charset="utf-8"></script>

  • AMD load

    require.config({
	paths: {
		QRCode: "<PATH>/easy.qrcode.min"
	}
});

require(["QRCode"], function(QRCode){
	
	// Your code...
	
});

  • Node.js load(For Example, Use in Electron)

    const QRCode = require('<PATH>/easyqrcodejs');

// Your code...

Basic Usages

<div id="qrcode"></div>

<script type="text/javascript">
	// Options
	var options = {
		text: "https://github.com/ushelp/EasyQRCodeJS"
	};
	
	// Create QRCode Object
	new QRCode(document.getElementById("qrcode"), options);
</script>

QRCode API

Object

var qrcode = new QRCode(DOM_object, options_object);

Options

 var options_object = {
    // ====== Basic
    text: "https://github.com/ushelp/EasyQRCodeJS",
    width: 256,
    height: 256,
    colorDark : "#000000",
    colorLight : "#ffffff",
    correctLevel : QRCode.CorrectLevel.H, // L, M, Q, H
    
    // ====== dotScale
    /*
    dotScale: 1, // For body block, must be greater than 0, less than or equal to 1. default is 1
    
    dotScaleTiming: 1, // Dafault for timing block , must be greater than 0, less than or equal to 1. default is 1
    dotScaleTiming_H: undefined, // For horizontal timing block, must be greater than 0, less than or equal to 1. default is 1
    dotScaleTiming_V: undefined, // For vertical timing block, must be greater than 0, less than or equal to 1. default is 1
    
    dotScaleA: 1, // Dafault for alignment block, must be greater than 0, less than or equal to 1. default is 1
    dotScaleAO: undefined, // For alignment outer block, must be greater than 0, less than or equal to 1. default is 1
    dotScaleAI: undefined, // For alignment inner block, must be greater than 0, less than or equal to 1. default is 1
    */
   
    // ====== Quiet Zone
    /*
    quietZone: 0,
    quietZoneColor: "rgba(0,0,0,0)",
    */

    // ====== Logo
    /*
    logo: "../demo/logo.png", // Relative address, relative to `easy.qrcode.min.js`
    logo: "http://127.0.0.1:8020/easy-qrcodejs/demo/logo.png", 
    logoWidth: 80, // fixed logo width. default is `width/3.5`
    logoHeight: 80, // fixed logo height. default is `heigth/3.5`
    logoMaxWidth: undefined, // Maximum logo width. if set will ignore `logoWidth` value
    logoMaxHeight: undefined, // Maximum logo height. if set will ignore `logoHeight` value
    logoBackgroundColor: '#fffff', // Logo backgroud color, Invalid when `logBgTransparent` is true; default is '#ffffff'
    logoBackgroundTransparent: false, // Whether use transparent image, default is false
    */

    // ====== Backgroud Image
    /*
    backgroundImage: '', // Background Image
    backgroundImageAlpha: 1, // Background image transparency, value between 0 and 1. default is 1. 
    autoColor: false, // Automatic color adjustment(for data block)
    autoColorDark: "rgba(0, 0, 0, .6)", // Automatic color: dark CSS color
    autoColorLight: "rgba(255, 255, 255, .7)", // Automatic color: light CSS color
    */
    
    // ====== Colorful
    // === Posotion Pattern(Eye) Color
    /*
    PO: '#e1622f', // Global Posotion Outer color. if not set, the defaut is `colorDark`
    PI: '#aa5b71', // Global Posotion Inner color. if not set, the defaut is `colorDark`
    PO_TL:'', // Posotion Outer color - Top Left 
    PI_TL:'', // Posotion Inner color - Top Left 
    PO_TR:'', // Posotion Outer color - Top Right 
    PI_TR:'', // Posotion Inner color - Top Right 
    PO_BL:'', // Posotion Outer color - Bottom Left 
    PI_BL:'', // Posotion Inner color - Bottom Left 
    */
    // === Alignment Color
    /*
    AO: '', // Alignment Outer. if not set, the defaut is `colorDark`
    AI: '', // Alignment Inner. if not set, the defaut is `colorDark`
    */
    // === Timing Pattern Color
    /*
    timing: '#e1622f', // Global Timing color. if not set, the defaut is `colorDark`
    timing_H: '', // Horizontal timing color
    timing_V: '', // Vertical timing color
    */
    
    // ====== Title
    /*
    title: 'QR Title', // content 
    titleFont: "normal normal bold 18px Arial", //font. default is "bold 16px Arial"
    titleColor: "#004284", // color. default is "#000"
    titleBackgroundColor: "#fff", // background color. default is "#fff"
    titleHeight: 70, // height, including subTitle. default is 0
    titleTop: 25, // draws y coordinates. default is 30
    */
   
    // ====== SubTitle
    /*
    subTitle: 'QR subTitle', // content
    subTitleFont: "normal normal normal 14px Arial", // font. default is "14px Arial"
    subTitleColor: "#004284", // color. default is "4F4F4F"
    subTitleTop: 40, // draws y coordinates. default is 0
    */
   
    // ===== Event Handler
    /*
    onRenderingStart: undefined,
    onRenderingEnd: undefined,
    */
   
    // ===== Versions
    /*
    version: 0, // The symbol versions of QR Code range from Version 1 to Version 40. default 0 means automatically choose the closest version based on the text length.
    */     
   
    // ===== Binary(hex) data mode
    /*
    binary: false, // Whether it is binary mode, default is text mode. 
    */ 
    
    // ===== Tooltip
    /*
    tooltip: false, // Whether set the QRCode Text as the title attribute value of the QRCode div
    */
   
    // ==== CORS
    /*
    crossOrigin: null, // String which specifies the CORS setting to use when retrieving the

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GitHub Stars799
CategoryCustomer
Updated3d ago
Forks161
ushelp/EasyQRCodeJS

Languages

JavaScript

Security Score

100/100

Audited on Mar 22, 2026

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