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
grunt-notify
Automatic desktop notifications for Grunt errors and warnings. Supports OS X, Windows, Linux.
karma-notify-reporter
A karma reporter that reports results with OSX Notification Center, Growl or notify-send.