jQuery Validation

Form validation made easy. Validate a simple comment form with inline rules, or a complex signup form with powerful remote checks.

W2UI: New JavaScript UI Library

Complete set of JavaScript UI widget for development of data-driven web applications. Includes layout, grid, toolbar, sidebar, tabs, forms, fields, popup, overlay

jQuery Super Labels

Give your forms a helping of awesome!

jQuery Steps

A powerful jQuery wizard plugin that supports accessibility and HTML5.

HeapBox

Customizable replacement for html select (not only) with events, callbacks, themes and much more.

jQuery Simply Countable

jQuery plugin that provides a character counter for any text input or textarea.

Alpaca Forms

Easy Forms Engine for jQuery / Bootstrap.

LiveAddress – Address validation and autocomplete

Free or commercial plug-and-play US address verification and geocoding for website forms with autocomplete suggestions, powered by SmartyStreets.

Ion.CheckRadio

jQuery plugin for styling checkboxes and radio-buttons. With skin support.