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

> tap-min@3.0.0 is ESM-only. ESM-only since 3.0.0 — last CommonJS version is 2.0.1.

Minimal TAP output formatter.

Last verified Sep 9, 2026 against tap-min@3.0.0.

tap-min dropped its CommonJS build in 3.0.0 (August 2023). The last version with a plain require()-able CommonJS entry is 2.0.1, published Aug 19, 2023; it declares support for Node.js >=8.

On Node.js 20.19+, 22.12+ and newer, require("tap-min") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26. On Node.js 18, which has no require(esm), require("tap-min") fails with ERR_REQUIRE_ESM.

## What to do

1. On Node.js 20.19+, 22.12+ and newer, require("tap-min") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26.
2. From a CommonJS file, use a dynamic import inside an async function: const tapMin = await import("tap-min"). That works on every Node.js version the package supports (>=18).
3. If you need a synchronous require() or run Node.js 18: npm install tap-min@2.0.1, the last CommonJS release (published Aug 19, 2023); it declares Node.js >=8.
4. TypeScript: no types are available for tap-min; declare the module yourself if you need them.

## Facts

- Latest: 3.0.0 (Aug 20, 2023)
- Module format: ESM-only
- Last CommonJS version: 2.0.1
- ESM-only since: 3.0.0 (Aug 20, 2023)
- TypeScript types: none
- Node engines: >=18
- Weekly downloads: 4K
- License: ISC

## Runtime test results for tap-min@3.0.0

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

| Runtime | require("tap-min") | import "tap-min" |
|---|---|---|
| Node.js 18 | fails (ERR_REQUIRE_ESM) | 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 tap-min

ES modules:

```js
import * as tapMin from "tap-min";
```

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

CommonJS:

```js
// Node.js 20.19+, 22.12+ and newer (verified):
const tapMin = require("tap-min");

// Any Node.js version the package supports (>=18), from an async function:
async function main() {
  const tapMin = await import("tap-min");
}

// Or pin the last CommonJS release (declares Node.js >=8):
// npm install tap-min@2.0.1
```

## Module format by version

Derived from the type, main and exports fields of every stable release on npm (10 versions; the newest 10 shown).

| Versions | Format | First published |
|---|---|---|
| 3.0.0 | ESM-only | Aug 20, 2023 |
| 0.1.0 – 2.0.1 | CommonJS | Mar 31, 2014 |

## Frequently asked

**Is tap-min ESM-only?**

tap-min@3.0.0 is ESM-only. tap-min dropped its CommonJS build in 3.0.0 (August 2023). The last version with a plain require()-able CommonJS entry is 2.0.1, published Aug 19, 2023; it declares support for Node.js >=8.

**Which version of tap-min still supports CommonJS / require()?**

2.0.1 is the last version of tap-min with a CommonJS build; it declares Node.js >=8. Install it with "npm install tap-min@2.0.1". Every version from 3.0.0 on is ESM-only.

**How do I use tap-min from a CommonJS file?**

From a CommonJS file, use a dynamic import inside an async function: const tapMin = await import("tap-min"). That works on every Node.js version the package supports (>=18). On Node.js 20.19+, 22.12+ and newer, require("tap-min") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26. Alternatively pin tap-min@2.0.1 (declares Node.js >=8).

**Does tap-min work in Bun?**

Yes. import "tap-min" loaded successfully in Bun 1.4.0 on Sep 9, 2026.

**Does tap-min ship TypeScript types?**

No. tap-min ships no type declarations and there is no @types package for it.

## Links

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

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