growly
Simple zero-dependency Growl notifications using GNTP.
node-notifier
A Node.js module for sending notifications on native Mac, Windows (post and pre 8) and Linux (or Growl as fallback)
gulp-notify
gulp plugin to send messages based on Vinyl Files or Errors to Mac OS X, Linux or Windows using the node-notifier module. Fallbacks to Growl or simply logging
bootstrap-notify
This is a simple plugin that turns standard Bootstrap alerts into "Growl-like" notifications.