canirequire

canirequire › CommonJS › ethereumjs-util

Is ethereumjs-util ESM-only? Can you require() it?

A collection of utility functions for Ethereum

Last verified Sep 9, 2026 against ethereumjs-util@7.1.5. JSON

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

ethereumjs-util ships CommonJS only. require("ethereumjs-util") works everywhere. import "ethereumjs-util" 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
7.1.5 (Jun 3, 2022)
Module format
CommonJS
Last CommonJS version
7.1.5
TypeScript types
Bundled
Node engines
>=10.0.0
Weekly downloads
2.2M
License
MPL-2.0

Does ethereumjs-util@7.1.5 actually load? Runtime test results

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

Runtimerequire("ethereumjs-util")import "ethereumjs-util"
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 ethereumjs-util

ES modules (import)

import ethereumjsUtil from "ethereumjs-util";

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 ethereumjsUtil = require("ethereumjs-util");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (84 versions; the newest 60 shown).

VersionsFormatFirst published
1.3.8 – 7.1.5CommonJSSep 10, 2015

Frequently asked

Is ethereumjs-util ESM-only?

ethereumjs-util@7.1.5 is a CommonJS package. ethereumjs-util ships CommonJS only. require("ethereumjs-util") works everywhere. import "ethereumjs-util" 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 ethereumjs-util with ES module syntax?

Yes. import ethereumjsUtil from "ethereumjs-util" 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 ethereumjs-util work in Bun?

Yes. import "ethereumjs-util" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does ethereumjs-util ship TypeScript types?

Yes. ethereumjs-util bundles its own type declarations; no @types package is needed.

Links

Other commonjs packages

Similar popularity