This package will tell Dropdox to ignore the node_modules directory inside your project.

Quick and dirty way to make Dropbox ignore node_modules (and others)

This is a tool for developers who use Dropbox, which can help you ignore node_modules, vendor, or Pods conveniently.

Iterate through folders and set all node_modules to be ignored by Dropbox sync

Recursively ignore node_modules within a Dropbox

set DropBox to recursively ignore all node modules dirs.

ignores generated files in Dropbox (e.g. node_modules), freeing up space