Validatr
Cross Browser HTML5 Form Validation.
Fancy Input
Makes typing in input fields fun with CSS3 effects
T Former.js
tFormer.js - Empower your HTML forms
Idealforms
The ultimate framework for building and validating responsive HTML5 forms.
Really Simple Color Picker
Simple Color Picker written in jQuery.
Webuploader
It's a new file uploader solution!
H5F
A JavaScript library that allows you to use the HTML5 Forms chapters new field input types, attributes and constraint validation API in non-supporting browsers.
Angular Formly
JavaScript powered forms for AngularJS
Inputex
A javascript framework for YUI to build fields and forms.
jQuery Validation
jQuery Validation Plugin
Jasny Bootstrap
The missing components for your favorite front-end framework.
Formvalidation
The best @jquery plugin to validate form fields. Designed to use with Bootstrap + Zurb Foundation + Pure + Semantic UI + UIKit + Your own frameworks. Star it. Try it. Buy it :)
Signal R
Incredibly simple real-time web for .NET
Tus Jquery Client
A jquery plugin implementing the tus resumable upload protocol.
J Query Mask Plugin
A jQuery Plugin to make masks on form fields and HTML elements.
jQuery Smart Auto Complete
AutoComplete plugin with smart defaults and flexibility to customize