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Is jwa ESM-only? Can you require() it?

JWA implementation (supports all JWS algorithms)

Last verified Sep 9, 2026 against jwa@2.0.1. Markdown · JSON

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

jwa ships CommonJS only. require("jwa") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "jwa" 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("jwa") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun.
  2. From ES modules use the default import: import jwa from "jwa"; then destructure. Named imports only work when Node.js can statically detect the exports.
  3. TypeScript: npm install -D @types/jwa
Latest
2.0.1 (May 7, 2025)
Module format
CommonJS
Last CommonJS version
2.0.1
TypeScript types
@types/jwa
Node engines
not declared
Weekly downloads
75.3M
License
MIT

Does jwa@2.0.1 actually load? Runtime test results

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

Runtimerequire("jwa")import "jwa"
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 1.4.0✓ works✓ works

How to import jwa

ES modules (import)

import jwa from "jwa";

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 jwa = require("jwa");

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 (21 versions; the newest 21 shown).

VersionsFormatFirst published
0.0.0 – 2.0.1CommonJSFeb 10, 2013

Frequently asked

Is jwa ESM-only?

jwa@2.0.1 is a CommonJS package. jwa ships CommonJS only. require("jwa") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. import "jwa" 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 jwa with ES module syntax?

Yes. import jwa from "jwa" 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 jwa work in Bun?

Yes. import "jwa" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does jwa ship TypeScript types?

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

Links

Other commonjs packages

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