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Is parcel-bundler ESM-only? Can you require() it?

Blazing fast, zero configuration web application bundler

Last verified Sep 9, 2026 against parcel-bundler@1.12.5. Markdown · JSON

CommonJS CommonJS — require() works on Node.js 22 and 24, fails on 18, 20 and 26

parcel-bundler ships CommonJS only. require("parcel-bundler") works on Node.js 22 and 24 but fails on Node.js 18, 20 and 26 (Error). The package declares Node.js >= 6.0.0. import "parcel-bundler" 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.

What to do

  1. require("parcel-bundler") works on Node.js 22 and 24 but fails on Node.js 18, 20 and 26 (Error). The package declares Node.js >= 6.0.0.
  2. From ES modules use the default import: import parcelBundler from "parcel-bundler"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/parcel-bundler
  4. This package is deprecated: Parcel v1 is no longer maintained. Please migrate to v2, which is published under the 'parcel' package. See https://v2.parceljs.org/getting-started/migration for details.
Latest
1.12.5 (Mar 16, 2021)
Module format
CommonJS
Last CommonJS version
1.12.5
TypeScript types
@types/parcel-bundler
Node engines
>= 6.0.0
Weekly downloads
35K
License
MIT

Deprecated: Parcel v1 is no longer maintained. Please migrate to v2, which is published under the 'parcel' package. See https://v2.parceljs.org/getting-started/migration for details.

Does parcel-bundler@1.12.5 actually load? Runtime test results

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

Runtimerequire("parcel-bundler")import "parcel-bundler"
Node.js 18✗ failsError✗ failsError
Node.js 20✗ failsError✗ failsError
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✗ failsError✗ failsError
Bun 1.4.0✗ failsError✗ failsError

A failing require() on a CommonJS package usually means the package needs a browser/DOM global, a peer dependency, or a native binary that is not available in a bare Node.js process.

How to import parcel-bundler

ES modules (import)

import parcelBundler from "parcel-bundler";

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 parcelBundler = require("parcel-bundler");

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 (39 versions; the newest 39 shown).

VersionsFormatFirst published
1.0.0 – 1.12.5CommonJSDec 5, 2017

Frequently asked

Is parcel-bundler ESM-only?

parcel-bundler@1.12.5 is a CommonJS package. parcel-bundler ships CommonJS only. require("parcel-bundler") works on Node.js 22 and 24 but fails on Node.js 18, 20 and 26 (Error). The package declares Node.js >= 6.0.0. import "parcel-bundler" 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 parcel-bundler with ES module syntax?

Yes. import parcelBundler from "parcel-bundler" 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 parcel-bundler work in Bun?

Importing parcel-bundler failed in Bun 1.4.0 on Sep 9, 2026: error: Could not locate the bindings file. Tried:

Does parcel-bundler ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/parcel-bundler".

Links

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