How to Delete ALL node_modules folders on your machine.

Mark Pieszak | Trilon Consulting
Mark Pieszak

Whenever we work on a new project we need to run npm install, but how often do we think about the toll this takes on our hard-drive?

The dreaded "out of space" message

A single node_modules folder can take up anywhere from 200+ megabytes of space (sometimes 1GB+ !).

Now take a look at your github/ folder, or wherever else you're storing the majority of your projects, and you can start to see where some of your free hard-drive space has gone!

I recently tweeted about this, as it's something I use every few months and wanted to share with others who might have ran into the same situation themselves!

<script>

List all node_modules found in a Directory:

First, let's take a look at ALL the node_modules we have in a directory, before we actually start deleting them!

NOTE: Make sure you cd into a specific directory where most of your projects are. ie: documents or documents/github.

Mac / Linux:

This command will print out each folder, and even show us how much space the folder is occupying !

$ cd documents
$ find . -name "node_modules" -type d -prune -print | xargs du -chs
--- Example output ---
1.0G ./Github/big-project/node_modules
225M ./Github/Trilon.io/node_modules
482M ./Github/Some_Demo/node_modules
1.7G total

Windows:

$ cd documents
$ FOR /d /r . %d in (node_modules) DO @IF EXIST "%d" echo %d"

This list will give you a good idea of just the sheer amount of projects you have installed on your machine!


Delete all node_modules found in a Directory:

NOTE: Use caution here, and make sure that you are in a directory where you're comfortable removing all the instances of node_modules, run the script above to see a full list of them all before deleting.

This script is actually very similar to the one above, but we're going to be utilizing rm -rf to completely delete them.

WARNING: This process is irreversible!

Mac / Linux:

$ cd documents
$ find . -name 'node_modules' -type d -prune -print -exec rm -rf '{}' \;

Windows:

$ cd documents
$ FOR /d /r . %d in (node_modules) DO @IF EXIST "%d" rm -rf "%d"

Powershell Users:

Get-ChildItem -Path "." -Include "node_modules" -Recurse -Directory | Remove-Item -Recurse -Force

There we have it!

For me personally, this typically clears out about 40-60GB from my hard-drive, but your mileage may vary!

In Conclusion

  • Make sure to list all nodemodules in a given directory _BEFORE deleting them.
  • Make sure to be cautious as this process is irreversible!
  • Remember to npm install on the projects you need to work on again.
  • Enjoy the free space! :)

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