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Is write-file-atomic ESM-only? Can you require() it?

Write files in an atomic fashion w/configurable ownership

Last verified Sep 9, 2026 against write-file-atomic@8.0.0. JSON

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

write-file-atomic ships CommonJS only. require("write-file-atomic") works everywhere. import "write-file-atomic" 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
8.0.0 (May 8, 2026)
Module format
CommonJS
Last CommonJS version
8.0.0
TypeScript types
@types/write-file-atomic
Node engines
^22.22.2 || ^24.15.0 || >=26.0.0
Weekly downloads
91.6M
License
ISC

Does write-file-atomic@8.0.0 actually load? Runtime test results

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

Runtimerequire("write-file-atomic")import "write-file-atomic"
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 write-file-atomic

ES modules (import)

import writeFileAtomic from "write-file-atomic";

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 writeFileAtomic = require("write-file-atomic");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (35 versions; the newest 35 shown).

VersionsFormatFirst published
1.0.0 – 8.0.0CommonJSSep 10, 2014

Frequently asked

Is write-file-atomic ESM-only?

write-file-atomic@8.0.0 is a CommonJS package. write-file-atomic ships CommonJS only. require("write-file-atomic") works everywhere. import "write-file-atomic" 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 write-file-atomic with ES module syntax?

Yes. import writeFileAtomic from "write-file-atomic" 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 write-file-atomic work in Bun?

Yes. import "write-file-atomic" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does write-file-atomic ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/write-file-atomic".

Links

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