iojs (Evented I/O for V8 JavaScript) io.js is a JavaScript platform built on Chrome's V8 runtime. This project began as a fork of Joyent's Node.js(tm) and is compatible with the npm ecosystem. WARNING: iojs will conflict with nodejs. Either install the nodejs package (recommended), or iojs from SBo, but not both. All packages include npm. nodejs is the most current package.