canirequire

canirequire › Dual (CommonJS + ESM) › js-base64

Is js-base64 ESM-only? Can you require() it?

Yet another Base64 transcoder in pure-JS

Last verified Sep 9, 2026 against js-base64@3.9.3. JSON

Dual (CommonJS + ESM) Dual package — both require() and import work

js-base64 publishes both a CommonJS entry and a native ESM entry (ESM added in 3.6.1). require("js-base64") and import "js-base64" both work on every supported Node.js version and in Bun.

Latest
3.9.3 (Aug 17, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
3.9.3
Native ESM since
3.6.1
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
17.1M
License
BSD-3-Clause

Does js-base64@3.9.3 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("js-base64") from a CommonJS file and import "js-base64" from an ES module.

Runtimerequire("js-base64")import "js-base64"
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 js-base64

ES modules (import)

import jsBase64 from "js-base64";

CommonJS (require)

const jsBase64 = require("js-base64");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (75 versions; the newest 60 shown).

VersionsFormatFirst published
3.6.1 – 3.9.3Dual (CommonJS + ESM)May 22, 2021
2.4.0 – 3.6.0CommonJSNov 30, 2017

Frequently asked

Is js-base64 ESM-only?

js-base64@3.9.3 ships CommonJS and ESM builds. js-base64 publishes both a CommonJS entry and a native ESM entry (ESM added in 3.6.1). require("js-base64") and import "js-base64" both work on every supported Node.js version and in Bun.

Can I require js-base64?

Yes. js-base64 ships a CommonJS entry, so require("js-base64") works on every Node.js version, alongside the native ESM entry for import.

Does js-base64 work in Bun?

Yes. import "js-base64" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does js-base64 ship TypeScript types?

Yes. js-base64 bundles its own type declarations; no @types package is needed.

Links

Other dual (commonjs + esm) packages

Similar popularity