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canirequire › Dual (CommonJS + ESM) › prettier

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

Prettier is an opinionated code formatter

Last verified Sep 9, 2026 against prettier@3.9.6. JSON

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

prettier publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("prettier") and import "prettier" both work on every supported Node.js version and in Bun.

Latest
3.9.6 (Jul 21, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
3.9.6
Native ESM since
3.0.0
TypeScript types
Bundled
Node engines
>=14
Weekly downloads
114.2M
License
MIT

Does prettier@3.9.6 actually load? Runtime test results

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

Runtimerequire("prettier")import "prettier"
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 prettier

ES modules (import)

import prettier from "prettier";

CommonJS (require)

const prettier = require("prettier");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (165 versions; the newest 60 shown).

VersionsFormatFirst published
3.0.0 – 3.9.6Dual (CommonJS + ESM)Jul 5, 2023
2.5.0 – 2.8.8CommonJSNov 25, 2021

Frequently asked

Is prettier ESM-only?

prettier@3.9.6 ships CommonJS and ESM builds. prettier publishes both a CommonJS entry and a native ESM entry (ESM added in 3.0.0). require("prettier") and import "prettier" both work on every supported Node.js version and in Bun.

Can I require prettier?

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

Does prettier work in Bun?

Yes. import "prettier" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does prettier ship TypeScript types?

Yes. prettier bundles its own type declarations; no @types package is needed.

Links

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