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How to Install NestJS: A Complete Setup Guide for Node.js Developers

NestJS has become one of the most popular frameworks for building scalable server-side applications with Node.js. Built on top of Express (or optionally Fastify), it uses TypeScript by default and borrows heavily from Angular's architecture — making it a natural fit for developers who like structure, decorators, and modular design. Getting it installed correctly depends on a few key factors in your environment.

What You Need Before Installing NestJS

NestJS is a Node.js framework, so your machine needs Node.js installed before anything else works. Specifically:

  • Node.js — version 16 or higher is generally recommended. NestJS actively tracks LTS (Long-Term Support) releases, so running an outdated Node version is one of the most common reasons the install fails or behaves unexpectedly.
  • npm (comes bundled with Node.js) or an alternative package manager like Yarn or pnpm
  • A terminal or command-line interface
  • Optionally: a code editor like VS Code, which has strong TypeScript tooling

You can check your current Node.js version by running: