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

> typeorm@1.1.1 ships CommonJS and ESM builds. Dual package — require() works on every Node.js version we test; import works too.

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.

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.

## Facts

- 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

## Runtime test results for typeorm@1.1.1

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

| Runtime | require("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:

```js
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:

```js
const typeorm = require("typeorm");
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (114 versions; the newest 60 shown).

| Versions | Format | First published |
|---|---|---|
| 0.2.42 – 1.1.1 | Dual (CommonJS + ESM) | Feb 16, 2022 |
| 0.2.21 – 0.2.41 | CommonJS | Dec 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

- [typeorm on npm](https://www.npmjs.com/package/typeorm)
- [Source repository](https://github.com/typeorm/typeorm)
- [HTML version](https://canirequire.com/package/typeorm/)
- [JSON version](https://canirequire.com/package/typeorm.json)

---

For scripts and AI agents: any package is at https://canirequire.com/package/<name>/index.md (Markdown) or https://canirequire.com/package/<name>.json (JSON); the site index is https://canirequire.com/llms.txt. Fetch the URL directly; no search needed.