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Is cross-fetch ESM-only? Can you require() it?

Universal WHATWG Fetch API for Node, Browsers and React Native

Last verified Sep 9, 2026 against cross-fetch@4.1.0. JSON

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

cross-fetch ships CommonJS only. require("cross-fetch") works everywhere. import "cross-fetch" 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
4.1.0 (Dec 21, 2024)
Module format
CommonJS
Last CommonJS version
4.1.0
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
32.9M
License
MIT

Does cross-fetch@4.1.0 actually load? Runtime test results

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

Runtimerequire("cross-fetch")import "cross-fetch"
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 cross-fetch

ES modules (import)

import crossFetch from "cross-fetch";

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 crossFetch = require("cross-fetch");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (39 versions; the newest 39 shown).

VersionsFormatFirst published
0.0.2 – 4.1.0CommonJSSep 23, 2017

Frequently asked

Is cross-fetch ESM-only?

cross-fetch@4.1.0 is a CommonJS package. cross-fetch ships CommonJS only. require("cross-fetch") works everywhere. import "cross-fetch" 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 cross-fetch with ES module syntax?

Yes. import crossFetch from "cross-fetch" 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 cross-fetch work in Bun?

Yes. import "cross-fetch" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does cross-fetch ship TypeScript types?

Yes. cross-fetch bundles its own type declarations; no @types package is needed.

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