概要
Puppeteer は、DevTools プロトコルまたは WebDriver BiDi を介して Chrome または Firefox を制御するための高レベル API を提供します。デフォルトではヘッドレスで実行され、ブラウザの自動化、テスト、Web スクレイピングに広く使用されています。Node.js をサポートし、スクリーンショット、PDF 生成、フォーム操作などの機能を提供します。
README プレビュー
# Puppeteer\n\n[](https://github.com/puppeteer/puppeteer/actions/workflows/ci.yml)\n[](https://npmjs.org/package/puppeteer)\n\n\n\n> Puppeteer is a JavaScript library which provides a high-level API to control\n> Chrome or Firefox over the\n> [DevTools Protocol](https://chromedevtools.github.io/devtools-protocol/) or [WebDriver BiDi](https://pptr.dev/webdriver-bidi).\n> Puppeteer runs in the headless (no visible UI) by default\n\n## [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)\n\n## Installation\n\n```bash npm2yarn\nnpm i puppeteer # Downloads compatible Chrome during installation.\nnpm i puppeteer-core # Alternatively, install as a library, without downloading Chrome.\n```\n\n:::note\n\nModern package managers (including npm (see the [RFC](https://github.com/npm/rfcs/pull/868)), pnpm, Yarn, Bun, and Deno) block dependency install scripts by default. If the install script is blocked, Puppeteer will not download the browser during installation, leading to runtime errors.\n\nYou can manually download the required browsers after installation by running:\n\n```bash npm2yarn\nnpx puppeteer browsers install\n```\n\nAlternatively, you can configure your package manager to allow the install script to run (for example, with npm, by adding `"puppeteer"` to `"allowScripts"` in your `package.json`).\n\n:::\n\n## MCP\n\nInstall [`chrome-devtools-mcp`](https://github.com/ChromeDevTools/chrome-devtools-mcp),\na Puppeteer-based MCP server for browser automation and debugging.\n\nPuppeteer also supports the experimental [WebMCP](https://pptr.dev/guides/webmcp) API.\n\n## Example\n\n```ts\nimport puppeteer from 'puppeteer';\n// Or import puppeteer from 'puppeteer-core';\n\n// Launch the browser and open a new blank page.\nconst browser = await puppeteer.launch();\nconst page = await browser.newPage();\n\n// Navigate the page to a UR