NW.js (formerly node-webkit) is a desktop runtime that combines Chromium with Node.js, allowing developers to build native applications using web technologies. It gives web pages direct access to Node modules and system resources from within the browser context, simplifying tasks like file I/O, process spawning, and OS integration. Apps are packaged with the runtime, ensuring consistent behavior across Windows, macOS, and Linux. The project supports custom window controls, tray menus, and native dialogs, enabling polished desktop UX beyond a plain browser shell. Its packaging and auto-update options help teams distribute binaries without external dependencies. NW.js is often chosen for projects that value direct DOM-to-Node interop and a straightforward migration path from existing web apps to desktop.
Features
- Combines Chromium-based browser engine with full access to Node.js APIs
- Allows calling Node.js modules directly from the DOM and Web Workers
- Supports packaging web apps as native desktop applications
- Rapidly evolving with updates like new CSS features, WebAuthn support, and cutting-edge Chromium upgrades (e.g., v0.86 with Chromium 123)
- Runs latest versions of within stable runtime including ARM64 support and advanced features
- Documentation available for users and developers extending NW.js capabilities