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Is css-select ESM-only? Can you require() it?

a CSS selector compiler/engine

Last verified Sep 9, 2026 against css-select@7.0.0. JSON

ESM-only ESM-only since 7.0.0 — last CommonJS version is 6.0.0

css-select dropped its CommonJS build in 7.0.0 (March 2026). The last version you can require() on every Node.js version, including 18 and older, is 6.0.0, published Jun 29, 2025.

On Node.js 20.19+, 22.12+ and every newer release, require("css-select") 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.

css-select@7.0.0 declares engines ">=20.19.0", so Node.js 18 is outside its supported range regardless of module format.

Latest
7.0.0 (Mar 22, 2026)
Module format
ESM-only
Last CommonJS version
6.0.0
ESM-only since
7.0.0 (Mar 22, 2026)
TypeScript types
Bundled
Node engines
>=20.19.0
Weekly downloads
70.6M
License
BSD-2-Clause

Does css-select@7.0.0 actually load? Runtime test results

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

Runtimerequire("css-select")import "css-select"
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 css-select

ES modules (import)

import cssSelect from "css-select";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const cssSelect = require("css-select");

// Any Node.js version:
const cssSelect = await import("css-select");

// Or pin the last CommonJS release:
// npm install css-select@6.0.0

Module format by version

Derived from the type, main and exports fields of every stable release on npm (30 versions; the newest 30 shown).

VersionsFormatFirst published
7.0.0ESM-onlyMar 22, 2026
5.0.0 – 6.0.0Dual (CommonJS + ESM)Apr 24, 2022
1.0.0 – 4.3.0CommonJSFeb 3, 2015

Frequently asked

Is css-select ESM-only?

css-select@7.0.0 is ESM-only. css-select dropped its CommonJS build in 7.0.0 (March 2026). The last version you can require() on every Node.js version, including 18 and older, is 6.0.0, published Jun 29, 2025.

Which version of css-select still supports CommonJS / require()?

6.0.0 is the last version of css-select with a CommonJS build. Install it with "npm install css-select@6.0.0". Every version from 7.0.0 on is ESM-only.

How do I use css-select from a CommonJS file?

Use a dynamic import: const mod = await import("css-select"). On Node.js 20.19+, 22.12+ and newer, a plain require("css-select") also works for ESM packages that do not use top-level await. Alternatively pin css-select@6.0.0.

Does css-select work in Bun?

Yes. import "css-select" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does css-select ship TypeScript types?

Yes. css-select bundles its own type declarations; no @types package is needed.

Links

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