A datepicker for @twitter bootstrap forked from Stefan Petre's (of eyecon.ro), improvements by @eternicode
The official jQuery user interface library.
Form-ready dependency-less tagging.
A modern dialog library which is highly configurable and easy to style. #hubspot-open-source
Kendo UI Core
Drag and drop, resizing and multi-touch gestures with inertia and snapping for modern browsers (and also IE8+)
Semantic empowers designers and developers by creating a shared vocabulary for UI.
jQuery plugin to make HTML tables responsive
Keep multiple browsers & devices in sync when building websites. http://browsersync.io
jQuery insert plugin for MediumEditor (Medium.com WYSIWYG editor clone)
jquery tree plugin