How to list npm user-installed packages

要列出用户在其本地环境中成功安装的 npm 软件包，您可以执行以下步骤：

1. 打开命令行界面。

2. 使用 cd 命令导航到项目的根目录，这样可以确保您查看的是特定项目的依赖项。如果您想查看全局安装的软件包，则可以跳过这一步。

3. 运行以下命令：

   • 查看项目的本地安装的软件包：

     sh
     npm list

   • 查看全局安装的软件包：

     sh
     npm list -g --depth=0

   这个命令会列出全局安装的顶级（也就是说不包括它们的依赖）软件包。--depth=0 参数确保只列出顶级包，而不是它们所有的依赖项。

4. 命令执行后，终端会输出一个树形结构，显示所有已安装的软件包及其版本号。

例如，如果您运行 npm list 在一个包含 express 和 lodash 的项目中，输出可能看起来像这样：

plaintext
project-name@1.0.0 /path/to/project-name
├── express@4.17.1
└── lodash@4.17.20

这表明您的项目成功安装了 express v4.17.1 和 lodash v4.17.20。

还有一些其他的参数可以用来自定义输出内容，例如：

• --prod 只显示生产环境的依赖。
• --dev 只显示开发环境的依赖。
• --json 以 JSON 格式输出结果。

这些命令和参数可以帮助任何使用 npm 的开发者快速查看已安装的软件包信息。

npm list -g --depth=0

• npm: the Node.js package manager command line tool
• list -g: display a tree of every package found in the user’s folders (without the -g option it only shows the current directory’s packages)
• --depth 0 / --depth=0: avoid including every package’s dependencies in the tree view

You can get a list of all globally installed modules using:

shell
ls `npm root -g`

As of 13 December 2015

While I found the accepted answer 100% correct, and useful, I wished to expand upon it a little based on my own experiences, and hopefully for the benefit of others too. (Here I am using the terms package and module interchangeably)

In an answer to the question, yes the accepted answer would be:

shell
npm list -g --depth=0

You might wish to check for a particular module installed globally, on Unix-like systems or when grep is available. This is particularly useful when checking what version of a module you are using (globally installed; just remove the -g flag if checking a local module):

shell
npm list -g --depth=0 | grep <module_name>

If you'd like to see all available (remote) versions for a particular module, then do:

shell
npm view <module_name> versions

Note, versions is plural. This will give you the full listing of versions to choose from.

For the latest remote version:

shell
npm view <module_name> version

Note, version is singular.

To find out which packages need to be updated, you can use:

shell
npm outdated -g --depth=0

To update global packages, you can use

shell
npm update -g <package>

To update all global packages, you can use:

shell
npm update -g

(However, for npm versions less than 2.6.1, please also see this link as there is a special script that is recommended for globally updating all packages.)

The above commands should work across NPM versions 1.3.x, 1.4.x, 2.x and 3.x.

List NPM packages with some friendly GUI!

This is what I personally prefer and it may be for others too, it may also help during presentations or meetings.

With npm-gui you can list local and global packages with a better visualization.

You can find the package at

• npm-gui (npm)
• npm-gui (GitHub)

Run the following

shell
// Once
npm install -g npm-gui

cd c:\your-prject-folder
npm-gui localhost:9000

Then open your browser at http:\\localhost:9000

For project dependencies use:

shell
npm list --depth=0

For global dependencies use:

shell
npm list -g --depth=0