Multi Select
A user-friendlier drop-in replacement for the standard select with multiple attribute activated.
Garlic.js
Garlic.js allows you to automatically persist your forms' text and select field values locally, until the form is submitted. This way, your users don't lose any precious data if they accidentally close their tab or browser.
Alpaca
Easy HTML5 Forms for jQuery
Formbuilder
[Needs Maintainer] Formbuilder is a small graphical interface for letting users build their own webforms.
Sisyphus
Gmail-like client-side drafts and bit more. Plugin developed to save html forms data to LocalStorage to restore them after browser crashes, tabs closings and other disasters.
Magicsuggest
Multiple Selection Combo Box using Bootstrap 3
jQuery Steps
A powerful jQuery wizard plugin that supports accessibility and HTML5.
Datedropper
datedropper is a jQuery plugin that provides a quick and easy way to manage dates for input fields.
Sc Editor
A lightweight HTML and BBCode WYSIWYG editor
Angular Datepicker
calendar and datepicker directives for angular
Angular Validation
Customizing Form Valid Message in AngularJS
Fancy Input
Makes typing in input fields fun with CSS3 effects
Starability
Accessible rating forms with cute animations on top.
Taggle.js
Form-ready dependency-less tagging.
Behave.js
A lightweight, cross browser library for adding IDE style behaviors to plain text areas
Color Picker
React ColorPicker
Forms Angular
Probably the most opinionated framework in the world