AI Wrote Code But You Don't Have npm? Here's What to Do

A practical guide covering the complete installation process through to your first functional project TL;DR: This guide lays out everything about Node.js and npm in one place. If you're using AI to write code (hello, vibe coders!), you might end up with a project you need to build but no npm installed. Here's what to install, what alternatives you have, what goes wrong and how to fix it + plus some senior dev tips. IMPORTANT! If you don't want to install anything and want to build everything in the cloud, you can skip the first part of the article until the Cloud Building heading . Introduction Node.js is basically JavaScript running outside the browser — on your computer, a server, whatever. npm (Node Package Manager) comes with Node.js and lets you: Grab thousands of libraries off the shelf Keep track of versions Run build scripts Publish your own packages Methods for Installing Node.js on Windows The selection of an installation method should be based on what you are doing. For isol