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What is Puppeteer? What is the use of Puppeteer?


It is a Node library that provides a high-level API to control headless Chrome or Chromium browsers over the DevTools Protocol. It can also be configured to use full (non-headless) Chrome or Chromium.

Why puppeteer?

These are few things that we can achieve with puppeteer.We will go one by one in detail.

Let start Before we directly start the coding we need to do setup

  1. Download latest version of Node.js (

  2. Create a project folder — mkdir scraper > cd scraper

  3. Initialise project directory — npm init.

  4. It will initialise your working directory for node project, and it will present a sequence of prompt; just press Enter on every prompt, or you can use (npm init -y) it will append the default value for you, saved in package.json file in the current directory.

  5. use npm command to install Puppeteer > npm i puppeteer

  6. This will download and bundle the latest version of Chromium.

  7. Create a file for ex: app.js


Puppeteer enables you to do most of the things that you can do manually in the browser. These features include:

  • Generate screenshots and PDFs of pages.

  • Crawl a SPA (Single-Page Application) and generate pre-rendered content (i.e., “SSR” (Server-Side Rendering)).

  • Automate form submission, UI testing, keyboard input, etc.

  • Create an up-to-date, automated testing environment. Run your tests directly in the latest version of Chrome using the latest JavaScript and browser features.

  • Capture a timeline trace of your site to help diagnose performance issues.

  • Test Chrome Extensions.


To use Puppeteer in your project, run:

npm i puppeteer

When you install Puppeteer, it downloads a recent version of Chromium by default.

There is also the puppeteer-core package, a version of Puppeteer that doesn’t download any browser by default. To install this package, run:

npm i puppeteer-core

Difference between Puppeteer and Selenium



Puppeteer was developed by Google and runs the script on Chromium

Selenium is the node.js library that is used to automate Chrome. This library is open-source and provides a high-level API to control Chrome

Is a Node.js library

Is a web framework for testing web applications

Works only with Chrome or Chromium and does not support other browsers.

Supports multiple browsers like Chrome, IE, Firefox, Safari, etc. Cross-platform support is provided across all the available browsers

Was released in 2017

Was released in 2004

Supports only Node.js

Supports multiple languages like Python, Ruby, Javascript, Java, etc.

Supports only web automation

Supports web automation and mobile automation

Screenshot can be taken of both PDFs and images

Screenshot can be taken of both PDFs and images only in Selenium 4

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