DateUtils

Use custom events in your OutSystems apps! Communicate events instantly between web blocks, refactor your screen logic, use divide-and-conquer for complex forms, build reusable components, and much more. And do all of these with a beautifully simple API.

A LifeTime plugin to provide Developers and Operations a quick and simple infrastructure monitoring tool for the platform servers. It will help you keep your infrastructure in check by surfacing key performance metrics of your servers and alert you when these metrics reach thresholds that may compromise the performance or stability of your environments. Instructions here: http://outsyste.ms/1lnELXb

Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly.