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Free Node.js Library for Creating Images from HTML

An Advanced Open Source Node.js Image Processing Library allows Software Developers to Generate JPEG or PNG Images from HTML Content with CSS Support and Batch Image Generation via free JS API.

Node-HTML-to-Image is an open source gem for software developers seeking a simple yet powerful solution to convert HTML content into images. Built on top of Puppeteer, a popular Node.js library that provides a high-level API to control headless Chrome browsers, this tool enables developers to generate images from HTML templates with minimal effort and cost. There are several important features part of the library that comforts software developers in the development process, such as converts raw HTML or pre-designed templates, creation of personalized or data-driven images, CSS styling support, multiple image formats support, Batch Image Generation, customize Puppeteer’s rendering options and many more.

The Node-HTML-to-Image library is a Node.js module that takes HTML templates and transforms them into static image files. The library is very helpful in generating banners, quote images, or promotional content dynamically based on user data or pre-defined templates. Moreover, it is also very useful for exporting complex data visualizations, charts, or tables as static images for inclusion in presentations or reports. Software developers can embed rendered images of promotional content in emails to ensure compatibility with email clients that block HTML or CSS. With a lightweight API and minimal dependencies, it’s perfect for applications that need to dynamically generate visuals. By exploring this library and integrating it into your projects, you can unlock new levels of efficiency and creativity.

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Getting Started with Node-HTML-to-Image

The recommended way to install Node-HTML-to-Image Library is using NPM. Please use the following command for a smooth installation.

Install Node-HTML-to-Image Library via NPM


npm install node-html-to-image

Install Node-HTML-to-Image Library via Yarn


yarn add node-html-to-image

You can also install it manually; download the latest release files directly from GitHub repository.

Generate an Image from HTML in Node.js

Generating images from HTML templates has become a popular approach in modern applications. The open source Node-HTML-to-Image library makes it easy for software developers converts raw HTML or pre-designed templates into static image files with just a couple of lines of code. This feature eliminates the need for complex graphic manipulation libraries and provides a simple interface to produce visual outputs. Here is an example that shows, how software developers can converts a simple HTML string into a PNG image inside node.js applications.

How to Converts HTML String into a PNG Image inside Node.js Apps?

const nodeHtmlToImage = require('node-html-to-image');

nodeHtmlToImage({
  output: './output.png',
  html: '
Hello, World!
',
})
  .then(() => console.log('Image successfully created!'));

Dynamic Content Rendering via Node.js Library

The Node-HTML-to-Image library allows software developers to pass variables into templates, enabling the creation of personalized or data-driven images inside Node.js applications. This feature is particularly useful for applications like certificates, personalized reports, or social media posts. The below example demonstrates, how a variable {{name}} is dynamically replaced with "Alice" before rendering the image inside Node.js applications.

How to Dynamically Pass Variables into Template and Rendering into Image via Node.js Library?

const nodeHtmlToImage = require('node-html-to-image');

nodeHtmlToImage({
  output: './personalized.png',
  html: `
    
      
        
Hello, {{name}}!

      
    
  `,
  content: { name: 'Alice' },
})
  .then(() => console.log('Personalized image created!'));

Batch Image Generation in Node.js

Generating multiple images simultaneously is effortless with open source Node-HTML-to-Image library. With just a few lines of code software developer can generate multiple images according to their needs. This feature is ideal for bulk tasks, such as creating a series of personalized images for a marketing campaign. The following example shows how to generate multiple images with a little changes inside the content. Here each item in the content array generates a separate image with the corresponding data.

How to Generate Multiple Images from HTML Content inside Node.js Apps?

const nodeHtmlToImage = require('node-html-to-image');

nodeHtmlToImage({
  html: `
Hello, {{name}}!
`,
  content: [
    { name: 'Alice' },
    { name: 'Bob' },
    { name: 'Charlie' },
  ],
})
  .then(() => console.log('Batch images created!'));