# pkg-dir [![Build Status](https://travis-ci.com/sindresorhus/pkg-dir.svg?branch=master)](https://travis-ci.com/github/sindresorhus/pkg-dir) > Find the root directory of a Node.js project or npm package ## Install ``` $ npm install pkg-dir ``` ## Usage ``` / └── Users └── sindresorhus └── foo ├── package.json └── bar ├── baz └── example.js ``` ```js // example.js const pkgDir = require('pkg-dir'); (async () => { const rootDir = await pkgDir(__dirname); console.log(rootDir); //=> '/Users/sindresorhus/foo' })(); ``` ## API ### pkgDir(cwd?) Returns a `Promise` for either the project root path or `undefined` if it couldn't be found. ### pkgDir.sync(cwd?) Returns the project root path or `undefined` if it couldn't be found. #### cwd Type: `string`\ Default: `process.cwd()` Directory to start from. ## Related - [pkg-dir-cli](https://github.com/sindresorhus/pkg-dir-cli) - CLI for this module - [pkg-up](https://github.com/sindresorhus/pkg-up) - Find the closest package.json file - [find-up](https://github.com/sindresorhus/find-up) - Find a file by walking up parent directories ---