NW.js (GitHub)
previously node-webkit, is a platform that bundles Chromium and Node.js runtime for developers to write cross-platform desktop applications with JavaScript and HTML.
It is very similar to the Electron project but the differences are explained here.
Creating cross-platform apps with NW.js - LogRocket Blog
It merged Chromium's MessagePump* with Node's libuv event loop.
node-webkit: app runtime based on Chromium and node.js // Speaker Deck
Cross-Platform Development With NW.js
Creating a Photo Discovery App with NW.js (part 1) | Scotch
Creating a Photo Discovery App with NW.js (part 2) | Scotch
StrongLoop | Creating Desktop Applications With node-webkit