Vanilla JavaScript Plugin

Split.js  

A lightweight utility for creating adjustable split views or panes like JSFiddle.

Plugin Website  Demo

Related plugins

WhitestormJS  

WhitestormJS is a sophisticated framework for rendering animated worlds and objects in 3D.

JavaScript Micro-Templating  

A simple JavaScript template engine for rendering HTML contents with placeholders. Technically, it's not a plugin, but useful nonetheless.

AcrossTabs  

Easy communication between cross-origin browser tabs.