Super Simple Slider (SSS) is a flexible and lightweight jQuery slider with super simple to set up.
Awesomplete is an ultra lightweight, customizable, simple autocomplete widget with zero dependencies, built with modern standards for modern browsers.
wysiwyg.js is a lightweight content editable jQuery editor which works with legacy browsers.
A lightweight library for performing spotlight in your DOM elements, setting an animated overlay to the rest of the page.
jQuery.dragmove is a lightweight jQuery extension for enabling draggable functionality on DOM elements without requiring the jQuery UI library. Compatible with trackpads, touch devices, and standard computer mice.
Tag Editor is a powerful and lightweight tag editor plugin for jQuery.
Lighterbox is a lighterweight and customizable jQuery lightbox gallery plugin. A simple plugin supporting modern mobile and desktop browsers to minimize configuration and hacky code.
a11yTree is a very lightweight and uninvasive jQuery plugin that transforms an HTML tree of nested unorded lists into an expanding and collapsing tree that's universally accessible.
Bonsai is a lightweight jQuery plugin that takes a big nested list and prunes it down to a small expandable tree control.
Also includes support for checkboxes (including 'indeterminate' state) and for populating the tree using a JSON data source.
Editor and generated code are optimized for HTML5 support. Compatible with all recents browsers like IE8+, Chrome, Opera and Firefox. It's only 15kB which means faster page loading.