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Is human-signals ESM-only? Can you require() it?

Human-friendly process signals

Last verified Sep 9, 2026 against human-signals@8.0.1. Markdown · JSON

ESM-only ESM-only since 3.0.0 — last CommonJS version is 2.1.0

human-signals dropped its CommonJS build in 3.0.0 (June 2021). The last version with a plain require()-able CommonJS entry is 2.1.0, published Mar 14, 2020; it declares support for Node.js >=10.17.0.

On Node.js 20.19+, 22.12+ and newer, require("human-signals") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26. On Node.js 18, which has no require(esm), require("human-signals") fails with ERR_REQUIRE_ESM.

What to do

  1. On Node.js 20.19+, 22.12+ and newer, require("human-signals") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26.
  2. From a CommonJS file, use a dynamic import inside an async function: const humanSignals = await import("human-signals"). That works on every Node.js version the package supports (>=18.18.0).
  3. If you need a synchronous require() or run Node.js 18: npm install human-signals@2.1.0, the last CommonJS release (published Mar 14, 2020); it declares Node.js >=10.17.0.
  4. TypeScript: types are bundled; install nothing extra.
Latest
8.0.1 (Mar 29, 2025)
Module format
ESM-only
Last CommonJS version
2.1.0
ESM-only since
3.0.0 (Jun 22, 2021)
TypeScript types
Bundled
Node engines
>=18.18.0
Weekly downloads
75.2M
License
Apache-2.0

Does human-signals@8.0.1 actually load? Runtime test results

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

Runtimerequire("human-signals")import "human-signals"
Node.js 18✗ failsERR_REQUIRE_ESM✓ 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 human-signals

ES modules (import)

import * as humanSignals from "human-signals";

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS (require)

// Node.js 20.19+, 22.12+ and newer (verified):
const humanSignals = require("human-signals");

// Any Node.js version the package supports (>=18.18.0), from an async function:
async function main() {
  const humanSignals = await import("human-signals");
}

// Or pin the last CommonJS release (declares Node.js >=10.17.0):
// npm install human-signals@2.1.0

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (16 versions; the newest 16 shown).

VersionsFormatFirst published
3.0.0 – 8.0.1ESM-onlyJun 22, 2021
1.1.0 – 2.1.0CommonJSOct 12, 2019

Frequently asked

Is human-signals ESM-only?

human-signals@8.0.1 is ESM-only. human-signals dropped its CommonJS build in 3.0.0 (June 2021). The last version with a plain require()-able CommonJS entry is 2.1.0, published Mar 14, 2020; it declares support for Node.js >=10.17.0.

Which version of human-signals still supports CommonJS / require()?

2.1.0 is the last version of human-signals with a CommonJS build; it declares Node.js >=10.17.0. Install it with "npm install human-signals@2.1.0". Every version from 3.0.0 on is ESM-only.

How do I use human-signals from a CommonJS file?

From a CommonJS file, use a dynamic import inside an async function: const humanSignals = await import("human-signals"). That works on every Node.js version the package supports (>=18.18.0). On Node.js 20.19+, 22.12+ and newer, require("human-signals") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26. Alternatively pin human-signals@2.1.0 (declares Node.js >=10.17.0).

Does human-signals work in Bun?

Yes. import "human-signals" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does human-signals ship TypeScript types?

Yes. human-signals bundles its own type declarations; no @types package is needed.

Links

Other esm-only packages

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