When you install Node.js modules using npm, they are placed in the node_modules directory of your project, which is located in the same directory as your package.json file. You can navigate to this directory using the command line.
If you have installed a package globally using the -g flag with the npm install command, you can find the modules in the global node_modules directory. The location of this directory depends on your operating system and your Node.js installation. To find the global node_modules directory, you can use the following command:
npm root -g
This command will output the path to the global node_modules directory. You can navigate to this directory using the command line.
Keep in mind that some packages may have dependencies on other packages, and these dependencies will also be installed in the node_modules directory alongside the package you installed. Therefore, the node_modules directory may contain many subdirectories, each corresponding to a different package or package dependency.