canirequire

canirequire › CommonJS › base64-js

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

Base64 encoding/decoding in pure JS

Last verified Sep 9, 2026 against base64-js@1.5.1. JSON

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

base64-js ships CommonJS only. require("base64-js") works everywhere. import "base64-js" 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
1.5.1 (Nov 11, 2020)
Module format
CommonJS
Last CommonJS version
1.5.1
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
100.7M
License
MIT

Does base64-js@1.5.1 actually load? Runtime test results

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

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

ES modules (import)

import base64Js from "base64-js";

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 base64Js = require("base64-js");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (23 versions; the newest 23 shown).

VersionsFormatFirst published
0.0.1 – 1.5.1CommonJSNov 26, 2011

Frequently asked

Is base64-js ESM-only?

base64-js@1.5.1 is a CommonJS package. base64-js ships CommonJS only. require("base64-js") works everywhere. import "base64-js" 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 base64-js with ES module syntax?

Yes. import base64Js from "base64-js" 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 base64-js work in Bun?

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

Does base64-js ship TypeScript types?

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

Links

Other commonjs packages

Similar popularity