What is Nodemon?

Nodemon requires Node.js version 10 or later and npm, and runs on Windows, macOS, and Linux with no special hardware requirements since it is a lightweight CLI wrapper around the node process.

Programming languages

• ✓JavaScript
• ✓Node.js

Nodemon is completely free and open source, distributed under the MIT license with no paid tiers or subscription plans.

Nodemon automatically restarts a Node.js application whenever it detects changes to watched files, supports manual restarts by typing 'rs', can run non-Node scripts through the --exec flag, and is configurable via a nodemon.json file or a nodemon section in package.json, including custom watch/ignore paths, file extensions, and delay settings.

Key features

• ✓Automatic restart on file change, manual restart via typing 'rs', support for running non-Node scripts via --exec, configuration via nodemon.json or package.json, customizable watch/ignore paths and file extensions, event hooks (restart, crash, exit), works as a drop-in replacement for the node command

Use cases

• ✓Local development of Node.js servers and scripts, auto-reloading during API/backend development, watching and re-running non-JS scripts (Python, etc.) via --exec

Nodemon is aimed at Node.js developers and backend engineers who want a faster edit-test loop during local development.

Nodemon is installed via npm (globally or as a dev dependency) and runs locally on a developer's machine as a command-line wrapper around the node executable; it is not a hosted or cloud service.

Install nodemon globally or as a dev dependency with npm (`npm install -g nodemon` or `npm install --save-dev nodemon`), then run `nodemon app.js` in place of `node app.js` to have the app automatically restart on file changes.

Official documentation and usage details are available in the project's README on GitHub at github.com/remy/nodemon, with additional configuration notes on the project wiki.