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

The ultimate javascript content-type utility.

Last verified Sep 9, 2026 against mime-types@3.0.2. JSON

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

mime-types ships CommonJS only. require("mime-types") works everywhere. import "mime-types" 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.

Latest
3.0.2 (Nov 20, 2025)
Module format
CommonJS
Last CommonJS version
3.0.2
TypeScript types
@types/mime-types
Node engines
>=18
Weekly downloads
185.3M
License
MIT

Does mime-types@3.0.2 actually load? Runtime test results

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

Runtimerequire("mime-types")import "mime-types"
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✓ works✓ works

How to import mime-types

ES modules (import)

import mimeTypes from "mime-types";

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 mimeTypes = require("mime-types");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (58 versions; the newest 58 shown).

VersionsFormatFirst published
0.1.0 – 3.0.2CommonJSMay 2, 2014

Frequently asked

Is mime-types ESM-only?

mime-types@3.0.2 is a CommonJS package. mime-types ships CommonJS only. require("mime-types") works everywhere. import "mime-types" 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-types with ES module syntax?

Yes. import mimeTypes from "mime-types" 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-types work in Bun?

Yes. import "mime-types" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does mime-types ship TypeScript types?

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

Links

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