Validatr
Cross Browser HTML5 Form Validation.
Cleave.js
Cleave.js has a simple purpose: to help you format input text content automatically.
React Editext
Editable Text Component for React Apps
Signal R
Incredibly simple real-time web for .NET
jQuery Super Labels
Give your forms a helping of awesome!
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.
Colorpicker
jQuery UI widget for color picking (similar to the one in Microsoft Office 2010).
Datedropper
datedropper is a jQuery plugin that provides a quick and easy way to manage dates for input fields.
jQuery Textcomplete
Introduce autocompleting power to textareas, like GitHub comment forms have.
Taggle.js
Form-ready dependency-less tagging.
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.
Formbuilder
[Needs Maintainer] Formbuilder is a small graphical interface for letting users build their own webforms.
jQuery Steps
A powerful jQuery wizard plugin that supports accessibility and HTML5.
Magicsuggest
Multiple Selection Combo Box using Bootstrap 3
At.js
Add Github like mentions autocomplete to your application.
jQuery Timepicker
Adds a timepicker to jQueryUI Datepicker
Sapphire Db
SapphireDb Server, a self-hosted, easy to use realtime database for Asp.Net Core and EF Core