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Is ts-loader ESM-only? Can you require() it?

TypeScript loader for webpack

Last verified Sep 9, 2026 against ts-loader@9.6.2. JSON

CommonJS CommonJS — require() works on every Node.js version

ts-loader ships CommonJS only. require("ts-loader") works everywhere. import "ts-loader" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Latest
9.6.2 (Jun 22, 2026)
Module format
CommonJS
Last CommonJS version
9.6.2
TypeScript types
Bundled
Node engines
>=12.0.0
Weekly downloads
11.8M
License
MIT

Does ts-loader@9.6.2 actually load? Runtime test results

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

Runtimerequire("ts-loader")import "ts-loader"
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 ts-loader

ES modules (import)

import tsLoader from "ts-loader";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const tsLoader = require("ts-loader");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (169 versions; the newest 60 shown).

VersionsFormatFirst published
7.0.0 – 9.6.2CommonJSApr 15, 2020

Frequently asked

Is ts-loader ESM-only?

ts-loader@9.6.2 is a CommonJS package. ts-loader ships CommonJS only. require("ts-loader") works everywhere. import "ts-loader" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import ts-loader with ES module syntax?

Yes. import tsLoader from "ts-loader" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does ts-loader work in Bun?

Yes. import "ts-loader" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does ts-loader ship TypeScript types?

Yes. ts-loader bundles its own type declarations; no @types package is needed.

Links

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