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d Development JavaScript Runtimes ·Reference · Added 6 days ago AI

Node.js Official Website

nodejs.org/en ↗
This page's summary, key points, and answers are generated by AI and may be inaccurate — always verify on the original source. How this works.

Node.js is a free, open-source JavaScript runtime environment built on Chrome's V8 engine. It enables developers to execute JavaScript code server-side to build scalable network applications, web servers, and CLI tools.

  • Cross-platform JavaScript runtime environment
  • Built on Chrome's V8 engine
  • Ideal for building scalable network applications
  • Extensive package support via npm
Who it's for: Web and software developers who need a robust, scalable environment for executing JavaScript outside of the browser. AI

Node.js is the official home for the open-source JavaScript runtime used to build efficient server-side applications. The platform provides comprehensive documentation, API references, and download links for various operating systems. It is designed to handle high-concurrency tasks through an event-driven, non-blocking I/O model. Developers use this resource to manage runtime versions, explore core modules, and access official community support.

Pros
  • Huge ecosystem of packages via npm
  • Excellent performance for I/O bound tasks
  • Unified language across frontend and backend
  • Massive community support and tutorials
Cons
  • Can struggle with CPU-intensive operations
  • Callback hell if not managed with Promises/async/await
  • Rapid release cycle can cause dependency issues
4 pros 3 cons
Nodejs
nodejs.org
VS
Deno
deno.com

Choose Node.js for its vast ecosystem and maturity, or Deno for a modern, security-first approach with built-in TypeScript support.

Aspect Nodejs Deno ↗
Security Model Default access to filesystem and network Secure by default with explicit permissions
TypeScript Requires transpilation (e.g., ts-node) Native, built-in support
Package Management Uses centralized npm registry Decentralized, supports URL-based imports
Ecosystem Maturity Extremely mature with endless modules Growing, but significantly smaller
Architecture Event-driven, non-blocking I/O Built on V8 with Rust-based core
Is Node.js a programming language?
No, Node.js is a runtime environment that allows developers to execute JavaScript code on a server rather than in a web browser.
Is Node.js free to use?
Yes, Node.js is open-source software released under the MIT License.
Original title
Node.js — Run JavaScript Everywhere
Original description
Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.
Reading time
~1 min · 204 words
Language
en-GB
Feed
RSS / Atom ↗
Mobile-friendly
Yes
Indexable
Yes
Canonical
https://nodejs.org/en
Next.jsCloudflareVercel
Secure (HTTPS)
Yes · HSTS
HTTP status
200 OK
Server
cloudflare
Powered by
Next.js
Page size
62 KB
Load time
191 ms
Scanned
2026-06-10 12:02:57
69
Performance
100
Accessibility
100
Best practices
100
SEO
First Contentful Paint
2.9 s
Needs work
Largest Contentful Paint
7.4 s
Poor
Total Blocking Time
10 ms
Good
Visual Stability (CLS)
0.00
Good

Lab data from Google Lighthouse via the PageSpeed Insights API (mobile) · tested Jun 11, 2026. Scores can vary between runs.

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