Bubble & Slide Notification Library – watnotif
The watnotif JavaScript library lets you create growl-style notifications with Bubble & Slide and Unstretch animations.
JavaScript & CSS growl notification
Native Javascript Growl Notification Library – Vanilla Notify
A vanilla JavaScript notification library that lets you show growl-style alerts and notifications to your users.
Feature-rich Growl Notification Library – MsgPop
MsgPop is a simple, zero-dependency JavaScript notification plugin that lets you display nice, clean and customizable growl-style messages on the screen.