Puppeteer
A Node.js library that lets you control Chrome or Firefox programmatically to automate browser tasks, scrape websites, and test web apps.
What is Puppeteer?
Puppeteer is a Node.js library from Google that gives you programmatic control over Chrome or Firefox browsers.
It runs headless by default (no visible browser window), but you can watch it work in headed mode for debugging. You write JavaScript to tell it what to do: click buttons, fill forms, take screenshots, generate PDFs, or scrape data.
Most builders use it for web scraping, automated testing, and generating static content from dynamic pages. It's particularly good at handling JavaScript-heavy sites that traditional scrapers can't touch. Popular for building bots that need to interact with websites like a real user would.
Free and open source. Downloaded over 4.5 million times per week. Works with Node.js and integrates with testing frameworks like Jest.
Good to Know
Runs Chrome or Firefox headless (no visible window) or headed (visible for debugging)
Built by Google's Chrome DevTools team, maintained as open source
Downloaded 4.5+ million times per week on npm
Handles JavaScript-heavy sites that basic scrapers can't process
Works with popular testing frameworks like Jest and Mocha
How Vibe Coders Use Puppeteer
Scraping product prices from competitor sites that load content with JavaScript
Automating repetitive browser tasks like filling out forms or downloading reports
Running end-to-end tests on your web app to catch bugs before users do
Generating PDF invoices or reports from your web dashboard automatically
Frequently Asked Questions
Related Terms
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