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Backend2026-05-17

Node.js

Also known as: Node.js / ノードJS

A server-side JavaScript runtime built on Chrome's V8 engine. Its non-blocking I/O model and vast npm ecosystem make it a standard choice for backend APIs, CLI tools, and serverless functions.


Overview

Node.js uses an event-loop-driven, non-blocking I/O architecture to deliver high concurrency with a single thread. Frameworks like Express, NestJS, and Hono run on top of it, enabling full-stack JavaScript development.

Use Cases

Node.js powers REST APIs, GraphQL servers, webhook handlers, and BFF layers. While Bun and Deno compete for mindshare, Node's npm ecosystem remains unmatched in size. See our Hono vs Express comparison for framework guidance.

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