The Ultimate Guide to Node.js: Everything You Need to Know

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Posted on August 1, 2025 | by Abhishek Singh

What is Node.js?

Node.js is an open-source, cross-platform runtime environment for executing JavaScript code outside of a browser.

Key Features of Node.js:

Asynchronous and Event-Driven
Single-threaded but Highly Scalable
Extremely Fast
No Buffering

Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient.