Includes a list of all package names on NPM. Updated daily, with optional local synchronization.

Packages which are deleted from NPM are removed from this list.

Installation

npm install all-package-names

yarn add all-package-names

pnpm add all-package-names

bun add all-package-names

Usage

Uses binary search on the underlying dataset to quickly check for existence or iterate over packages with a given prefix without having to load the entire list into memory. However, the full list can also be loaded as a string array.

API

Check if a package exists without loading the full array:

import allPackageNames from "all-package-names";

console.log(await allPackageNames.has("react")); // true

Iterate packages by prefix:

import allPackageNames from "all-package-names";

for await (const name of allPackageNames.iterPrefix("@types/")) {
  console.log(name);
}

Load all names into memory as a string array:

import allPackageNames from "all-package-names";

const names = await allPackageNames.toArray();

Refresh the local files from the npm replication feed:

import allPackageNames from "all-package-names";

const result = await allPackageNames.refresh();

console.log(result);

CLI

Stream, query, and maintain the all-package-names dataset

Usage: all-package-names [options] [command]

Options:
  -p, --prefix [prefix]  Only output package names with this prefix
  -v, --version          Display version
  -h, --help             Display help for command

Commands:
  has <name>             Check whether a package name exists
  sync                   Sync the local dataset from the npm replication feed
  bootstrap              Restore the local dataset from the latest GitHub release

Stream every package name, one per line:

all-package-names

Only stream names with a given prefix:

all-package-names --prefix @types/

This is useful for piping to other programs, for example:

all-package-names --prefix @types/ | grep react

has

Check whether a package exists with the has subcommand:

all-package-names has react

MIT - MIT License

Related Packages

• package-name-conflict: Check if NPM package names conflict
• is-name-taken: Check if an NPM package name is taken
• npms-io-client: Isomorphic typed client for npms.io
• npm-pd: A CLI dashboard for NPM publishers