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Is json-buffer ESM-only? Can you require() it?

JSON parse & stringify that supports binary via bops & base64

Last verified Sep 9, 2026 against json-buffer@3.0.1. JSON

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

json-buffer ships CommonJS only. require("json-buffer") works everywhere. import "json-buffer" 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
3.0.1 (Sep 10, 2018)
Module format
CommonJS
Last CommonJS version
3.0.1
TypeScript types
@types/json-buffer
Node engines
not declared
Weekly downloads
123.3M
License
MIT

Does json-buffer@3.0.1 actually load? Runtime test results

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

Runtimerequire("json-buffer")import "json-buffer"
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 json-buffer

ES modules (import)

import jsonBuffer from "json-buffer";

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 jsonBuffer = require("json-buffer");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (15 versions; the newest 15 shown).

VersionsFormatFirst published
1.0.0 – 3.0.1CommonJSMay 20, 2013

Frequently asked

Is json-buffer ESM-only?

json-buffer@3.0.1 is a CommonJS package. json-buffer ships CommonJS only. require("json-buffer") works everywhere. import "json-buffer" 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 json-buffer with ES module syntax?

Yes. import jsonBuffer from "json-buffer" 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 json-buffer work in Bun?

Yes. import "json-buffer" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does json-buffer ship TypeScript types?

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

Links

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