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.
Bootstrap Wysiwyg
Tiny bootstrap-compatible WISWYG rich text editor
Expanding Textareas
jQuery plugin for elegant expanding textareas
jQuery Super Labels
Give your forms a helping of awesome!
Idealforms
The ultimate framework for building and validating responsive HTML5 forms.
Filereader.js
A lightweight wrapper for the JavaScript FileReader interface
X Sound
XSound gives Web Developers Powerful Audio Features Easily !
Taggle.js
Form-ready dependency-less tagging.
Validetta
A tiny jquery plugin for validate your forms
Pretty Checkable
A jQuery plugin to replace checkboxes and radios for custom images
Completely
A fresh take on autocompletion for a wonderful user experience
Progression.js
A jQuery plugin that gives users real time hints & progress updates as they complete forms
Color Picker
React ColorPicker
Switchery
iOS 7 style switches for your checkboxes
Nod
jQuery plugin that gives you frontend validation for forms.
Validatr
Cross Browser HTML5 Form Validation.
Zen Form
Add distraction mode for forms