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

A small library to print colourful messages.

Last verified Sep 9, 2026 against tinyrainbow@3.1.1. Markdown · JSON

ESM-only ESM-only — it has never shipped a CommonJS build

tinyrainbow has been ESM-only since its first stable release; there is no CommonJS version to pin.

On Node.js 20.19+, 22.12+ and newer, require("tinyrainbow") 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("tinyrainbow") fails with ERR_REQUIRE_ESM.

What to do

  1. On Node.js 20.19+, 22.12+ and newer, require("tinyrainbow") 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 tinyrainbow = await import("tinyrainbow"). That works on every Node.js version the package supports (>=14.0.0).
  3. There is no CommonJS release of tinyrainbow to pin; without require(esm) the only option is a dynamic import().
  4. TypeScript: types are bundled; install nothing extra.
Latest
3.1.1 (Jul 28, 2026)
Module format
ESM-only
Last CommonJS version
none
ESM-only since
1.0.0 (Apr 13, 2023)
TypeScript types
Bundled
Node engines
>=14.0.0
Weekly downloads
103.3M
License
MIT

Does tinyrainbow@3.1.1 actually load? Runtime test results

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

Runtimerequire("tinyrainbow")import "tinyrainbow"
Node.js 18✗ failsERR_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 tinyrainbow

ES modules (import)

import * as tinyrainbow from "tinyrainbow";

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

CommonJS (require)

// Node.js 20.19+, 22.12+ and newer (verified):
const tinyrainbow = require("tinyrainbow");

// Any Node.js version the package supports (>=14.0.0), from an async function:
async function main() {
  const tinyrainbow = await import("tinyrainbow");
}

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 (12 versions; the newest 12 shown).

VersionsFormatFirst published
1.0.0 – 3.1.1ESM-onlyApr 13, 2023

Frequently asked

Is tinyrainbow ESM-only?

tinyrainbow@3.1.1 is ESM-only. tinyrainbow has been ESM-only since its first stable release; there is no CommonJS version to pin.

Which version of tinyrainbow still supports CommonJS / require()?

None. tinyrainbow has always been ESM-only. Use import, or a dynamic import("tinyrainbow") from an async function in CommonJS.

How do I use tinyrainbow from a CommonJS file?

From a CommonJS file, use a dynamic import inside an async function: const tinyrainbow = await import("tinyrainbow"). That works on every Node.js version the package supports (>=14.0.0). On Node.js 20.19+, 22.12+ and newer, require("tinyrainbow") works with the latest version: Node.js loads synchronous ES modules through require(). Verified on Node.js 20, 22, 24 and 26.

Does tinyrainbow work in Bun?

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

Does tinyrainbow ship TypeScript types?

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

Links

Other esm-only packages

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