A port of elm-effects and the Elm Architecture to Redux that allows you to sequence your effects naturally and purely by returning them from your reducers.
Sentry is a realtime error logging and aggregation platform
Ajax.org Cloud9 Editor
Firebug Lite: doing the Firebug way, anywhere.
A flat designed jQuery WYSIWYG text editor based on HTML5, free only for non-commercial projects. For commercial applications you have to purchase a license from
Cool jQuery datepicker
React Native for Web
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element. The image will stretch to fit the page/element, and will automatically resize as the window/element size changes.
noty - jquery notification plugin
Beautiful math in all browsers