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

Data-Mapper ORM for TypeScript and ES2023+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.

Last verified Sep 9, 2026 against typeorm@1.1.1. Markdown · JSON

Dual (CommonJS + ESM) Dual package — require() works on every Node.js version we test; import works too

typeorm publishes both a CommonJS entry and a native ESM entry (ESM added in 0.2.42). require("typeorm") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24.11.0. import "typeorm" works alongside it.

What to do

  1. Nothing to change. require("typeorm") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24.11.0. import * as typeorm from "typeorm" works alongside it; use named imports for what the ESM entry exports.
  2. TypeScript: types are bundled; install nothing extra.
Latest
1.1.1 (Sep 1, 2026)
Module format
Dual (CommonJS + ESM)
Last CommonJS version
1.1.1
Native ESM since
0.2.42
TypeScript types
Bundled
Node engines
^20.19.0 || ^22.13.0 || >=24.11.0
Weekly downloads
4.4M
License
MIT

Does typeorm@1.1.1 actually load? Runtime test results

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

Runtimerequire("typeorm")import "typeorm"
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 1.4.0✓ works✓ works

How to import typeorm

ES modules (import)

import * as typeorm from "typeorm";

Namespace import shown because the ESM entry may have no default export; use named imports for what it exports.

CommonJS (require)

const typeorm = require("typeorm");

Module format by version

Derived from the type, main and exports fields of every stable release on npm, corrected where a runtime test of that version contradicted them (114 versions; the newest 60 shown).

VersionsFormatFirst published
0.2.42 – 1.1.1Dual (CommonJS + ESM)Feb 16, 2022
0.2.21 – 0.2.41CommonJSDec 5, 2019

Frequently asked

Is typeorm ESM-only?

typeorm@1.1.1 ships CommonJS and ESM builds. typeorm publishes both a CommonJS entry and a native ESM entry (ESM added in 0.2.42). require("typeorm") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24.11.0. import "typeorm" works alongside it.

Can I require typeorm?

Yes. typeorm ships a CommonJS entry alongside the native ESM entry. require("typeorm") works on every Node.js version we test (18, 20, 22, 24 and 26) and in Bun. The package declares Node.js ^20.19.0 || ^22.13.0 || >=24.11.0.

Does typeorm work in Bun?

Yes. import "typeorm" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

Does typeorm ship TypeScript types?

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

Links

Other dual (commonjs + esm) packages

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