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---
section: cli-commands 
title: npm-init
description: create a package.json file
---

# npm-init(1)

## create a package.json file

### Synopsis
```bash
npm init [--force|-f|--yes|-y|--scope]
npm init <@scope> (same as `npx <@scope>/create`)
npm init [<@scope>/]<name> (same as `npx [<@scope>/]create-<name>`)
```

### Examples

Create a new React-based project using [`create-react-app`](https://npm.im/create-react-app):
```bash
$ npm init react-app ./my-react-app
```

Create a new `esm`-compatible package using [`create-esm`](https://npm.im/create-esm):
```bash
$ mkdir my-esm-lib && cd my-esm-lib
$ npm init esm --yes
```

Generate a plain old package.json using legacy init:
```bash
$ mkdir my-npm-pkg && cd my-npm-pkg
$ git init
$ npm init
```

Generate it without having it ask any questions:
```bash
$ npm init -y
```

### Description

`npm init <initializer>` can be used to set up a new or existing npm package.

`initializer` in this case is an npm package named `create-<initializer>`, which
will be installed by [`npx`](https://npm.im/npx), and then have its main bin
executed -- presumably creating or updating `package.json` and running any other
initialization-related operations.

The init command is transformed to a corresponding `npx` operation as follows:

* `npm init foo` -> `npx create-foo`
* `npm init @usr/foo` -> `npx @usr/create-foo`
* `npm init @usr` -> `npx @usr/create`

Any additional options will be passed directly to the command, so `npm init foo
--hello` will map to `npx create-foo --hello`.

If the initializer is omitted (by just calling `npm init`), init will fall back
to legacy init behavior. It will ask you a bunch of questions, and then write a
package.json for you. It will attempt to make reasonable guesses based on
existing fields, dependencies, and options selected. It is strictly additive, so
it will keep any fields and values that were already set. You can also use
`-y`/`--yes` to skip the questionnaire altogether. If you pass `--scope`, it
will create a scoped package.

### See Also

* <https://github.com/isaacs/init-package-json>
* [package.json](/configuring-npm/package-json)
* [npm version](/cli-commands/npm-version)
* [npm scope](/using-npm/scope)

Filemanager

Name Type Size Permission Actions
npm-access.md File 2.87 KB 0644
npm-adduser.md File 2.93 KB 0644
npm-audit.md File 4.08 KB 0644
npm-bin.md File 452 B 0644
npm-bugs.md File 1.08 KB 0644
npm-build.md File 645 B 0644
npm-bundle.md File 416 B 0644
npm-cache.md File 2.73 KB 0644
npm-ci.md File 1.92 KB 0644
npm-completion.md File 936 B 0644
npm-config.md File 1.62 KB 0644
npm-dedupe.md File 1.44 KB 0644
npm-deprecate.md File 953 B 0644
npm-dist-tag.md File 2.95 KB 0644
npm-docs.md File 1.14 KB 0644
npm-doctor.md File 4.65 KB 0644
npm-edit.md File 1.07 KB 0644
npm-explore.md File 1.04 KB 0644
npm-fund.md File 1.59 KB 0644
npm-help-search.md File 910 B 0644
npm-help.md File 989 B 0644
npm-hook.md File 1.88 KB 0644
npm-init.md File 2.17 KB 0644
npm-install-ci-test.md File 438 B 0644
npm-install-test.md File 832 B 0644
npm-install.md File 19.03 KB 0644
npm-link.md File 2.75 KB 0644
npm-logout.md File 1.28 KB 0644
npm-ls.md File 2.57 KB 0644
npm-org.md File 1.01 KB 0644
npm-outdated.md File 3.86 KB 0644
npm-owner.md File 1.22 KB 0644
npm-pack.md File 1.01 KB 0644
npm-ping.md File 519 B 0644
npm-prefix.md File 678 B 0644
npm-profile.md File 2.89 KB 0644
npm-prune.md File 1.38 KB 0644
npm-publish.md File 3.12 KB 0644
npm-rebuild.md File 495 B 0644
npm-repo.md File 774 B 0644
npm-restart.md File 962 B 0644
npm-root.md File 438 B 0644
npm-run-script.md File 3.49 KB 0644
npm-search.md File 2.85 KB 0644
npm-shrinkwrap.md File 1004 B 0644
npm-star.md File 591 B 0644
npm-stars.md File 614 B 0644
npm-start.md File 798 B 0644
npm-stop.md File 452 B 0644
npm-team.md File 2.2 KB 0644
npm-test.md File 469 B 0644
npm-token.md File 2.8 KB 0644
npm-uninstall.md File 1.53 KB 0644
npm-unpublish.md File 1.45 KB 0644
npm-update.md File 3.39 KB 0644
npm-version.md File 4.47 KB 0644
npm-view.md File 3.19 KB 0644
npm-whoami.md File 385 B 0644
npm.md File 5.31 KB 0644