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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. 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 you can require() on every Node.js version, including 18 and older, is 2.1.0, published Mar 14, 2020.

On Node.js 20.19+, 22.12+ and every newer release, require("human-signals") works anyway: Node can load synchronous ES modules through require(). Verified on Node 20, 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

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✓ works✓ works

How to import human-signals

ES modules (import)

import humanSignals from "human-signals";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const humanSignals = require("human-signals");

// Any Node.js version:
const humanSignals = await import("human-signals");

// Or pin the last CommonJS release:
// 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 (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 you can require() on every Node.js version, including 18 and older, is 2.1.0, published Mar 14, 2020.

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

2.1.0 is the last version of human-signals with a CommonJS build. 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?

Use a dynamic import: const mod = await import("human-signals"). On Node.js 20.19+, 22.12+ and newer, a plain require("human-signals") also works for ESM packages that do not use top-level await. Alternatively pin human-signals@2.1.0.

Does human-signals work in Bun?

Yes. import "human-signals" loaded successfully in Bun 1.4 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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