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Is i18next ESM-only? Can you require() it?

i18next internationalization framework

Last verified Sep 9, 2026 against i18next@26.4.2. JSON

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

i18next publishes both a CommonJS entry and a native ESM entry (ESM added in 21.5.0). require("i18next") and import "i18next" both work on every supported Node.js version and in Bun.

Latest
26.4.2 (Sep 3, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
26.4.2
Native ESM since
21.5.0
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
19.7M
License
MIT

Does i18next@26.4.2 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("i18next") from a CommonJS file and import "i18next" from an ES module.

Runtimerequire("i18next")import "i18next"
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 i18next

ES modules (import)

import i18next from "i18next";

CommonJS (require)

const i18next = require("i18next");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (583 versions; the newest 60 shown).

VersionsFormatFirst published
25.7.1 – 26.4.2Dual (CommonJS + ESM)Dec 1, 2025

Frequently asked

Is i18next ESM-only?

i18next@26.4.2 ships CommonJS and ESM builds. i18next publishes both a CommonJS entry and a native ESM entry (ESM added in 21.5.0). require("i18next") and import "i18next" both work on every supported Node.js version and in Bun.

Can I require i18next?

Yes. i18next ships a CommonJS entry, so require("i18next") works on every Node.js version, alongside the native ESM entry for import.

Does i18next work in Bun?

Yes. import "i18next" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does i18next ship TypeScript types?

Yes. i18next bundles its own type declarations; no @types package is needed.

Links

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