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

> mime-db@1.54.0 is a CommonJS package. CommonJS — require() works on every Node.js version we test.

Media Type Database

Last verified Sep 9, 2026 against mime-db@1.54.0.

mime-db ships CommonJS only. require("mime-db") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.6. import "mime-db" 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("mime-db") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.6.
2. From ES modules use the default import: import mimeDb from "mime-db"; then destructure. Named imports only work when Node.js can statically detect the exports.
3. TypeScript: npm install -D @types/mime-db

## Facts

- Latest: 1.54.0 (Mar 18, 2025)
- Module format: CommonJS
- Last CommonJS version: 1.54.0
- TypeScript types: @types/mime-db
- Node engines: >= 0.6
- Weekly downloads: 247.5M
- License: MIT

## Runtime test results for mime-db@1.54.0

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

| Runtime | require("mime-db") | import "mime-db" |
|---|---|---|
| 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 mime-db

ES modules:

```js
import mimeDb from "mime-db";
```

CommonJS:

```js
const mimeDb = require("mime-db");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (64 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 1.0.3 – 1.54.0 | CommonJS | Sep 25, 2014 |

## Frequently asked

**Is mime-db ESM-only?**

mime-db@1.54.0 is a CommonJS package. mime-db ships CommonJS only. require("mime-db") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js >= 0.6. import "mime-db" 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 mime-db with ES module syntax?**

Yes. import mimeDb from "mime-db" 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 mime-db work in Bun?**

Yes. import "mime-db" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does mime-db ship TypeScript types?**

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

## Links

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

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