Juggling DB
Multi-database ORM: redis, mongodb, mysql, sqlite, postgres, neo4j, memory... Many databases, common API.
Crossroads.js
JavaScript Routes
Pure
PURE Unobtrusive Rendering Engine for HTML
Tabris Js
tabris.js - native apps in JavaScript
Html5tooltipsjs
Light and clean tooltips
Decimal.js
An arbitrary-precision Decimal type for JavaScript
Caat
Canvas Advanced Animation Toolkit
HtmlJs
HTML render engine and data binding (MVVM)
Xdomain
A pure JavaScript CORS alternative
Magicsuggest
Multiple Selection Combo Box using Bootstrap 3
Hint.css
A tooltip library in CSS for your lovely websites.
Ember
Ember.js is a JavaScript framework that does all of the heavy lifting that you'd normally have to do by hand. There are tasks that are common to every web app; Ember.js does those things for you, so you can focus on building killer features and UI.
Tsparticles
tsParticles - Easily create highly customizable particles animations and use them as animated backgrounds for your website. Ready to use components available for React.js, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Inferno, Solid, Riot and Web Components.
SockJS Client
WebSocket emulation - Javascript client
Cannon.js
A lightweight 3D physics engine written in JavaScript.
Jstat
JavaScript Statistical Library
Stream Saver.js
StreamSaver writes stream to the filesystem directly asynchronous