JavaScript on the server
Node.js is a JavaScript runtime built on Chrome's V8 engine that allows running JavaScript on the server. It revolutionized backend development by bringing the same language used in frontend to the server, enabling full-stack development with JavaScript.
With its non-blocking I/O model and event-driven architecture, Node.js is perfect for applications that require high concurrency and real-time capabilities, like chat apps, RESTful APIs, microservices, and data streaming. NPM (Node Package Manager) offers the world's largest open-source library ecosystem.
We use Node.js to build scalable backends, robust APIs with Express or Fastify, build and automation tools, and real-time services with WebSockets. Its performance and ability to handle multiple simultaneous connections make it ideal for modern applications.