If you are like me and have a lot of legacy projects on your computer you should consider deleting your node modules folder. A few minutes and a terminal command gave me back several GB of hard drive space!

before:

after:

I also ran this in another folder and saved 700mb

• Before getting started make sure your projects backed up to Github or some-place safe.

cd directory-where-your-projects-live

find . -name "node_modules" -type d -prune -exec trash -rf '{}' +

You can npm install dependencies to add them back to any projects where you need them.

• If you don't have trash installed (and you probably should) use rm instead like this:

find . -name "node_modules" -type d -prune -exec rm -rf '{}' +

sources:
https://rtmccormick.com/2018/01/10/clear-node-modules-folders-recursively-mac-linux/