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Is acorn-jsx ESM-only? Can you require() it?

Modern, fast React.js JSX parser

Last verified Sep 9, 2026 against acorn-jsx@5.3.2. JSON

CommonJS CommonJS — require() works on every Node.js version

acorn-jsx ships CommonJS only. require("acorn-jsx") works everywhere. import "acorn-jsx" 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.

Latest
5.3.2 (Jul 9, 2021)
Module format
CommonJS
Last CommonJS version
5.3.2
TypeScript types
None
Node engines
not declared
Weekly downloads
125.5M
License
MIT

Does acorn-jsx@5.3.2 actually load? Runtime test results

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

Runtimerequire("acorn-jsx")import "acorn-jsx"
Node.js 18✓ works✓ 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 acorn-jsx

ES modules (import)

import acornJsx from "acorn-jsx";

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 acornJsx = require("acorn-jsx");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (21 versions; the newest 21 shown).

VersionsFormatFirst published
0.6.1 – 5.3.2CommonJSJul 11, 2014

Frequently asked

Is acorn-jsx ESM-only?

acorn-jsx@5.3.2 is a CommonJS package. acorn-jsx ships CommonJS only. require("acorn-jsx") works everywhere. import "acorn-jsx" 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 acorn-jsx with ES module syntax?

Yes. import acornJsx from "acorn-jsx" 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 acorn-jsx work in Bun?

Yes. import "acorn-jsx" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does acorn-jsx ship TypeScript types?

No. acorn-jsx ships no type declarations and there is no @types package for it.

Links

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