javascript package manager


npm <command> [args]




npm is the package manager for the Node JavaScript platform. It puts modules in place so that node can find them, and manages dependency conflicts intelligently.

It is extremely configurable to support a wide variety of use cases. Most commonly, it is used to publish, discover, install, and develop node programs.

Run npm help to get a list of available commands.


npm is configured to use npm, Inc.’s public registry at by default. Use of the npm public registry is subject to terms of use available at

You can configure npm to use any compatible registry you like, and even run your own registry. Use of someone else’s registry may be governed by their terms of use.


You probably got npm because you want to install stuff.

Use npm install blerg to install the latest version of “blerg”. Check out npm install for more info. It can do a lot of stuff.

Use the npm search command to show everything that’s available. Use npm ls to show everything you’ve installed.


If a package references to another package with a git URL, npm depends on a preinstalled git.

If one of the packages npm tries to install is a native node module and requires compiling of C++ Code, npm will use node-gyp for that task. For a Unix system, node-gyp needs Python, make and a buildchain like GCC. On Windows, Python and Microsoft Visual Studio C++ are needed. For more information visit the node-gyp repository and the node-gyp Wiki.


See folders to learn about where npm puts stuff.

In particular, npm has two modes of operation:

Local mode is the default. Use -g or --global on any command to operate in global mode instead.

Developer Usage

If you’re using npm to develop and publish your code, check out the following help topics:


npm is extremely configurable. It reads its configuration options from 5 places.

See config for much much more information.


Patches welcome!

If you would like to contribute, but don’t know what to work on, read the contributing guidelines and check the issues list.


When you find issues, please report them:

Be sure to follow the template and bug reporting guidelines. You can also ask for help in the support forum if you’re unsure if it’s actually a bug or are having trouble coming up with a detailed reproduction to report.


Isaac Z. Schlueter :: isaacs :: @izs ::

See Also