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puppeteer

Free

JavaScript API for Chrome and Firefox

AI AgentsFreeFree tier
Inputs: text, urlOutputs: text, image, file
Type
Open Source
Visit Website GitHub (94.2k stars)

About puppeteer

Puppeteer is an open-source JavaScript library that provides a high-level API for controlling Chrome or Firefox browsers over the DevTools Protocol or WebDriver BiDi. It runs in headless mode by default, meaning no visible user interface, and is designed for automating browser tasks such as navigating pages, interacting with elements, capturing screenshots, and generating PDFs. The library is primarily used for web scraping, automated testing of web applications, and performance monitoring. Puppeteer can be installed via npm, Yarn, pnpm, or Bun, and offers two packages: 'puppeteer' which downloads a compatible Chrome browser during installation, and 'puppeteer-core' which does not. The project also supports an experimental WebMCP API and provides a Puppeteer-based MCP server called 'chrome-devtools-mcp' for browser automation and debugging.

Key Features

High-level API to control Chrome or Firefox via DevTools Protocol or WebDriver BiDi
Runs in headless mode by default, with option for full browser mode
Supports navigation, form interaction, keyboard input, and element selection using accessible selectors
Can capture screenshots and generate PDFs of web pages
Allows network interception and request modification
Provides performance analysis and tracing capabilities
Offers both 'puppeteer' (with browser download) and 'puppeteer-core' (library only) packages
Experimental support for WebMCP API and MCP server for browser automation

Pros & Cons

Pros
  • Open-source and free to use with no licensing costs
  • Provides a high-level, intuitive API for browser automation
  • Supports both Chrome and Firefox browsers
  • Can run in headless mode, making it suitable for server environments
  • Active development and community support via GitHub
  • Includes built-in browser download option for easy setup
Cons
  • Requires Node.js runtime and JavaScript knowledge
  • Headless mode may not fully replicate all browser behaviors
  • Browser download during installation can be large and may be blocked by package manager security settings
  • Some advanced features (e.g., WebMCP API) are experimental and may change
  • Automation may be detected by some websites, leading to blocks or CAPTCHAs

Best For

Automated end-to-end testing of web applicationsWeb scraping and data extraction from dynamic websitesGenerating screenshots or PDFs of web pages for reportingPerformance monitoring and tracing of page load behaviorAutomating repetitive browser tasks like form submissions or UI interactionsServer-side rendering of JavaScript-heavy pages for SEO or previews

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FAQ

What browsers does Puppeteer support?
Based on available information, Puppeteer supports Chrome and Firefox via the DevTools Protocol or WebDriver BiDi.
Does Puppeteer require a visible browser window?
Puppeteer runs in headless mode by default, meaning no visible UI. It can also be configured to run in full browser mode if needed.
How do I install Puppeteer without downloading a browser?
You can install the 'puppeteer-core' package, which does not download a browser. You will need to provide your own browser binary.
Can Puppeteer be used for web scraping?
Yes, Puppeteer is commonly used for web scraping and data extraction from dynamic websites.
Is Puppeteer free to use?
Puppeteer is open-source and free to use. There are no paid plans or licensing fees.
What is the difference between 'puppeteer' and 'puppeteer-core'?
The 'puppeteer' package downloads a compatible Chrome browser during installation, while 'puppeteer-core' does not and requires you to provide your own browser.