puppeteer/docs/index.md

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hide_table_of_contents: true
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# Puppeteer

[![build](https://github.com/puppeteer/puppeteer/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/puppeteer/puppeteer/actions/workflows/ci.yml)
[![npm puppeteer package](https://img.shields.io/npm/v/puppeteer.svg)](https://npmjs.org/package/puppeteer)

<img src="https://user-images.githubusercontent.com/10379601/29446482-04f7036a-841f-11e7-9872-91d1fc2ea683.png" height="200" align="right"/>

> Puppeteer is a Node.js library which provides a high-level API to control
> Chrome or Firefox over the
> [DevTools Protocol](https://chromedevtools.github.io/devtools-protocol/) or [WebDriver BiDi](https://pptr.dev/webdriver-bidi).
> Puppeteer runs in the headless (no visible UI) by default
> but can be configured to run in a visible ("headful") browser.

## [Get started](https://pptr.dev/docs) | [API](https://pptr.dev/api) | [FAQ](https://pptr.dev/faq) | [Contributing](https://pptr.dev/contributing) | [Troubleshooting](https://pptr.dev/troubleshooting)

## Installation

```bash npm2yarn
npm i puppeteer # Downloads compatible Chrome during installation.
npm i puppeteer-core # Alternatively, install as a library, without downloading Chrome.
```

## Example

```ts
import puppeteer from 'puppeteer'; // or import puppeteer from 'puppeteer-core';

// Launch the browser and open a new blank page
const browser = await puppeteer.launch();
const page = await browser.newPage();

// Navigate the page to a URL.
await page.goto('https://developer.chrome.com/');

// Set screen size.
await page.setViewport({width: 1080, height: 1024});

// Type into search box.
await page.type('.devsite-search-field', 'automate beyond recorder');

// Wait and click on first result.
const searchResultSelector = '.devsite-result-item-link';
await page.waitForSelector(searchResultSelector);
await page.click(searchResultSelector);

// Locate the full title with a unique string.
const textSelector = await page.waitForSelector('text/Customize and automate');
const fullTitle = await textSelector?.evaluate(el => el.textContent);

// Print the full title.
console.log('The title of this blog post is "%s".', fullTitle);

await browser.close();
```