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Is nodemon ESM-only? Can you require() it?

Simple monitor script for use during development of a Node.js app.

Last verified Sep 9, 2026 against nodemon@3.1.14. Markdown · JSON

CommonJS CommonJS — require() works on every Node.js version we test

nodemon ships CommonJS only. require("nodemon") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=10. import "nodemon" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

What to do

  1. require("nodemon") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=10.
  2. From ES modules use the default import: import nodemon from "nodemon"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: types are bundled; install nothing extra.
Latest
3.1.14 (Feb 20, 2026)
Module format
CommonJS
Last CommonJS version
3.1.14
TypeScript types
Bundled
Node engines
>=10
Weekly downloads
12.2M
License
MIT

Does nodemon@3.1.14 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("nodemon") from a CommonJS file and import "nodemon" from an ES module.

Runtimerequire("nodemon")import "nodemon"
Node.js 18✓ works✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4.0✓ works✓ works

How to import nodemon

ES modules (import)

import nodemon from "nodemon";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const nodemon = require("nodemon");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (216 versions; the newest 60 shown).

VersionsFormatFirst published
1.17.5 – 3.1.14CommonJSMay 23, 2018

Frequently asked

Is nodemon ESM-only?

nodemon@3.1.14 is a CommonJS package. nodemon ships CommonJS only. require("nodemon") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >=10. import "nodemon" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import nodemon with ES module syntax?

Yes. import nodemon from "nodemon" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does nodemon work in Bun?

Yes. import "nodemon" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does nodemon ship TypeScript types?

Yes. nodemon bundles its own type declarations; no @types package is needed.

Links

Other commonjs packages

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