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

🔌 TypeScript bindings for Ethereum smartcontracts

Last verified Sep 9, 2026 against typechain@8.3.2. JSON

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

typechain ships CommonJS only. require("typechain") works everywhere. import "typechain" 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.

It also declares a "module" field, so bundlers such as webpack, Vite and esbuild pick up an ESM build for tree-shaking.

Latest
8.3.2 (Oct 15, 2023)
Module format
CommonJS
Last CommonJS version
8.3.2
TypeScript types
Bundled
Node engines
not declared
Weekly downloads
295K
License
MIT

Does typechain@8.3.2 actually load? Runtime test results

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

Runtimerequire("typechain")import "typechain"
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 typechain

ES modules (import)

import typechain from "typechain";

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 typechain = require("typechain");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (78 versions; the newest 60 shown).

VersionsFormatFirst published
0.2.4 – 8.3.2CommonJSJun 23, 2018

Frequently asked

Is typechain ESM-only?

typechain@8.3.2 is a CommonJS package. typechain ships CommonJS only. require("typechain") works everywhere. import "typechain" 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 typechain with ES module syntax?

Yes. import typechain from "typechain" 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 typechain work in Bun?

Yes. import "typechain" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does typechain ship TypeScript types?

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

Links

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