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Is @rolldown/pluginutils ESM-only? Can you require() it?

Plugin utilities for Rolldown

Last verified Sep 9, 2026 against @rolldown/pluginutils@1.0.1. Markdown · JSON

ESM-only ESM-only — it has never shipped a CommonJS build

@rolldown/pluginutils has been ESM-only since its first stable release; there is no CommonJS version to pin.

On Node.js 20.19+, 22.12+ and newer, require("@rolldown/pluginutils") 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("@rolldown/pluginutils") fails with ERR_REQUIRE_ESM.

What to do

  1. On Node.js 20.19+, 22.12+ and newer, require("@rolldown/pluginutils") 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 pluginutils = await import("@rolldown/pluginutils"). That works on every Node.js version the package supports.
  3. There is no CommonJS release of @rolldown/pluginutils to pin; without require(esm) the only option is a dynamic import().
  4. TypeScript: no types are available for @rolldown/pluginutils; declare the module yourself if you need them.
Latest
1.0.1 (May 13, 2026)
Module format
ESM-only
Last CommonJS version
none
ESM-only since
1.0.0 (May 7, 2026)
TypeScript types
None
Node engines
not declared
Weekly downloads
113.0M
License
MIT

Does @rolldown/pluginutils@1.0.1 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("@rolldown/pluginutils") from a CommonJS file and import "@rolldown/pluginutils" from an ES module.

Runtimerequire("@rolldown/pluginutils")import "@rolldown/pluginutils"
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 @rolldown/pluginutils

ES modules (import)

import * as pluginutils from "@rolldown/pluginutils";

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 pluginutils = require("@rolldown/pluginutils");

// Any Node.js version the package supports, from an async function:
async function main() {
  const pluginutils = await import("@rolldown/pluginutils");
}

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 (2 versions; the newest 2 shown).

VersionsFormatFirst published
1.0.0 – 1.0.1ESM-onlyMay 7, 2026

Frequently asked

Is @rolldown/pluginutils ESM-only?

@rolldown/pluginutils@1.0.1 is ESM-only. @rolldown/pluginutils has been ESM-only since its first stable release; there is no CommonJS version to pin.

Which version of @rolldown/pluginutils still supports CommonJS / require()?

None. @rolldown/pluginutils has always been ESM-only. Use import, or a dynamic import("@rolldown/pluginutils") from an async function in CommonJS.

How do I use @rolldown/pluginutils from a CommonJS file?

From a CommonJS file, use a dynamic import inside an async function: const pluginutils = await import("@rolldown/pluginutils"). That works on every Node.js version the package supports. On Node.js 20.19+, 22.12+ and newer, require("@rolldown/pluginutils") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26.

Does @rolldown/pluginutils work in Bun?

Yes. import "@rolldown/pluginutils" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does @rolldown/pluginutils ship TypeScript types?

No. @rolldown/pluginutils ships no type declarations and there is no @types package for it.

Links

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