React Select is a flexible select control for React with multiselect, autocomplete, async support.
BsMultiSelect is a lightweight multiselect plugin for Bootstrap 4. It converts multi-select list into dropdown with checkboxes.
Tokenize2 is a jQuery plugin that allows you to select multiple items from a predefined list or ajax, using autocomplete as they type to find each item.
SelectPage is a jQuery select plugin including ajax remote data, autocomplete, pagination, tags, i18n and keyboard navigation features.
SelectListActions is a jQuery plugin that allows you to perform several actions with HTML Select lists.
Dropdown Tree is a dynamic dropdown menu, based on Bootstrap and jQuery with click handlers, data handlers. You can select single or multi items, and can bind remote data with ajax request.
Dropdown is a lightweight jQuery dropdown plugin that supports key/value search and has multiple selection option.
multi.js is a user-friendly replacement for select boxes with the multiple attribute. It is mobile-friendly, easy to use, and provides search functionality. multi.js is also easy to customize and style with CSS.
pickList is a simple jQuery plugin that turns a regular multiple option select box into a side-by-side pick list with Bootstrap.
jQuery Tree Multiselect is a jQuery plugin that allows you to replace a
select element with a treeview element. It's a multiple select with nested options.
Bootstrap Chosen is an alternate stylesheet for Chosen. This one is supposed to integrate better with Bootstrap 3.0.
Select Multiple is an user-friendly drop-in replacement for the standard select with multiple attribute activated.
Selectivity.js is a modular and lightweight selection library for jQuery and Zepto.js.
Checkbox-field is a jQuery plugin that turns multiselect fields into a field of checkboxes
SumoSelect is a jQuery single/multi select plugin which can be used on almost any device. It can be fully customizable using simple css properties.