Node.js is an open-source, cross-platform JavaScript runtime environment that allows you to run JavaScript code outside the browser. It is built on Google Chrome’s V8 JavaScript engine.
Uses JavaScript for both frontend and backend
Fast & efficient (non-blocking, event-driven architecture)
Ideal for scalable network applications
Large ecosystem of libraries via npm
Asynchronous & non-blocking I/O
Single-threaded but highly scalable
Uses event-driven architecture
Handles thousands of concurrent connections efficiently
Web servers & APIs
Real-time applications (chat apps, live updates)
RESTful services
Microservices
Command-line tools
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