Selectize.js
Selectize is the hybrid of a textbox and <select> box. It's jQuery based and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc.
Quill
A cross browser rich text editor with an API
Forms Angular
Probably the most opinionated framework in the world
Sc Editor
A lightweight HTML and BBCode WYSIWYG editor
X Sound
XSound gives Web Developers Powerful Audio Features Easily !
G2 Plot
:dango: An interactive and responsive charting library
Alpine
A rugged, minimal framework for composing JavaScript behavior in your markup.
Filepond
🌊 A flexible and fun JavaScript file upload library
Signal R
Incredibly simple real-time web for .NET
Zxcvbn
zxcvbn, named after a crappy password, is a JavaScript password strength estimation library. Use it to implement a custom strength bar on a signup form near you!
Really Simple Color Picker
Simple Color Picker written in jQuery.
T Former.js
tFormer.js - Empower your HTML forms
Sapphire Db
SapphireDb Server, a self-hosted, easy to use realtime database for Asp.Net Core and EF Core
Flexi Color Picker
A pure JavaScript color picker - no images, external libraries, CSS or 1px divs.
React Editext
Editable Text Component for React Apps
X Editable
In-place editing with Twitter Bootstrap, jQuery UI or pure jQuery
jQuery Smart Auto Complete
AutoComplete plugin with smart defaults and flexibility to customize