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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

#javascript7 #nodejs4 #backend2 #runtime3 #server-side1 #web-development3

Visit link ↗ Archived copy Explore graph Visualize

Overview 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 & cons AI

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 vs Deno AI

Nodejs

nodejs.org

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

Questions & answers AI

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.

Page details

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

Tech details

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

Performance · Google Lighthouse

Performance

Accessibility

Best practices

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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MDN Web Docs ↗

The primary resource for learning the JavaScript language and web standards.

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server-side javascript event-driven architecture asynchronous programming npm package management