# Is morgan ESM-only? Can you require() it?

> morgan@1.12.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

HTTP request logger middleware for node.js

Last verified Sep 9, 2026 against morgan@1.12.0.

morgan ships CommonJS only. require("morgan") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.8.0. import "morgan" 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("morgan") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.8.0.
2. From ES modules use the default import: import morgan from "morgan"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/morgan

## Facts

- Latest: 1.12.0 (Aug 28, 2026)
- Module format: CommonJS
- Last CommonJS version: 1.12.0
- TypeScript types: @types/morgan
- Node engines: >= 0.8.0
- Weekly downloads: 11.8M
- License: MIT

## Runtime test results for morgan@1.12.0

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

| Runtime | require("morgan") | import "morgan" |
|---|---|---|
| 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 morgan

ES modules:

```js
import morgan from "morgan";
```

CommonJS:

```js
const morgan = require("morgan");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (29 versions; the newest 29 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.0 – 1.12.0 | CommonJS | Feb 8, 2014 |

## Frequently asked

**Is morgan ESM-only?**

morgan@1.12.0 is a CommonJS package. morgan ships CommonJS only. require("morgan") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.8.0. import "morgan" 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 morgan with ES module syntax?**

Yes. import morgan from "morgan" 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 morgan work in Bun?**

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

**Does morgan ship TypeScript types?**

Not bundled. Install the community types with "npm install -D @types/morgan".

## Links

- [morgan on npm](https://www.npmjs.com/package/morgan)
- [Source repository](https://github.com/expressjs/morgan)
- [HTML version](https://canirequire.com/package/morgan/)
- [JSON version](https://canirequire.com/package/morgan.json)

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