React Select is a flexible select control for React with multiselect, autocomplete, async support.
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.
Tag-it is a jQuery UI plugin to handle multi-tag fields as well as tag suggestions/autocomplete.
Taggle.js allows you to create tag fields within your forms, to allow for easy and optionally restricted, input from your users.
inputTags.js is a simple jQuery plugin allowing to add, edit or remove tags in a tags list.
Insignia is a customizable tag input that is progressively enhanced, fast, easy to use, and reliable.
Features
Tagator is a jQuery-based replacement for input boxes, making them tagging boxes. It supports searching, and affects the original input box directly, which is used as a comma serparated data container.
Tag Editor is a powerful and lightweight tag editor plugin for jQuery.
Features
taggingJS is a jQuery plugin to create an high customizable front-end tag system. It is less than 2.5 kb and support major browsers in the world!
jQuery.masterblaster is a nice and tidy tag manager.
jQuery tag/token input plugin for Twitter Bootstrap.
Features
Selectize is a jQuery-based custom <select>
UI control. It's useful for tagging, contact lists, country selectors, and so on. It clocks in at around ~7kb (gzipped). The goal is to provide a solid & usable user-experience with a clean and powerful API.
MagicSuggest is highly flexible auto suggest combo box in the line of Bootstrap themes. It is many configuration options that you can customize.
MagicSuggest examples
Inputosaurus Text is a jQuery plugin that allows for multiple delimited values, parse hooks, autocomplete, keyboard shortcuts etc.
The jQuery Tagit plugin transforms an html unordered list into a unique tagging plugin. Why unique? Because jQuery Tagit uses jQuery Ui's auto-complete plugin to supply suggestions to users as they type.