Node.js lets you run JavaScript outside the browser — on servers, command-line tools, and backend services. Built on Chrome's V8 engine and designed around a non-blocking, event-driven model, it powers everything from small APIs to the backend infrastructure of companies like Netflix, LinkedIn, and PayPal.

This tutorial series takes you from your first script to production-grade backend development. You'll learn the event loop and asynchronous programming, core modules and the file system, building REST and GraphQL APIs with Express, working with databases, authentication and security, testing, and deployment. Whether you're a frontend developer moving to the backend or new to server-side programming entirely, these tutorials will build real, practical Node.js skills.