Bootstrap

Bootstrap TouchSpin is a mobile and touch friendly input spinner component for Bootstrap 3. It supports the mousewheel and the up/down keys.    

Tag Manager is a jQuery plugin to create tag input fields, which works nicely with Twitter Typeahead.js and Twitter Bootstrap.    

Bootstrap Tour makes it quick and easy to build your product tours with Twitter bootstrap popovers.    

Bootstrap Tags Input is a jQuery plugin providing a Twitter Bootstrap user interface for managing tags.   Bootstrap Tags Input - Features: Objects as tags Not just support for using strings! This means you can use different values for a tag's label and value. Each tag also holds a reference to the object by which it was created, so by calling tagsinput('items') an array of the original items is returned. True multi value Typeahead AngularJS directive included Designed for Bootstrap 2.3.

Bootstrap-Maxlength uses a Twitter Bootstrap label to show a visual feedback to the user about the maximum length of the field where the user is inserting text. Uses the HTML5 attribute "maxlength" to work.    

MagicSuggest is an auto-suggest combo with bootstrap theme using jQuery. It is a highly flexible auto suggest combo box in the line of Bootstrap themes and has many configuration options that one can customize.