iojs is an npm compatible platform originally based on Node.js
iojs or io.js is a JavaScript platform built on Chrome's V8 runtime. This project began as a fork of Joyent's Node.js™ and is compatible with the npm ecosystem.
iojs aims to provide faster and predictable release cycles. It currently merges in the latest language, API and performance improvements to V8 while also updating libuv and other base libraries.