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Is @angular/compiler ESM-only? Can you require() it?

Angular - the compiler library

Last verified Sep 9, 2026 against @angular/compiler@22.1.5. JSON

ESM-only ESM-only since 13.0.0 — last CommonJS version is 12.2.17

@angular/compiler dropped its CommonJS build in 13.0.0 (November 2021). The last version you can require() on every Node.js version, including 18 and older, is 12.2.17, published Nov 22, 2022.

On Node.js 20.19+, 22.12+ and every newer release, require("@angular/compiler") works anyway: Node can load synchronous ES modules through require(). Verified on Node 22, 24, 26. Node.js 18 and older still fail with ERR_REQUIRE_ESM.

@angular/compiler@22.1.5 declares engines "^22.22.3 || ^24.15.0 || >=26.0.0", so Node.js 18, 20 are outside its supported range regardless of module format.

Latest
22.1.5 (Sep 3, 2026)
Module format
ESM-only
Last CommonJS version
12.2.17
ESM-only since
13.0.0 (Nov 3, 2021)
TypeScript types
Bundled
Node engines
^22.22.3 || ^24.15.0 || >=26.0.0
License
MIT

Does @angular/compiler@22.1.5 actually load? Runtime test results

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

Runtimerequire("@angular/compiler")import "@angular/compiler"
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✓ works✓ works

How to import @angular/compiler

ES modules (import)

import compiler from "@angular/compiler";

CommonJS (require)

// Node.js 20.19+ / 22.12+ / newer (package has no top-level await):
const compiler = require("@angular/compiler");

// Any Node.js version:
const compiler = await import("@angular/compiler");

// Or pin the last CommonJS release:
// npm install @angular/compiler@12.2.17

Module format by version

Derived from the type, main and exports fields of every stable release on npm (573 versions; the newest 60 shown).

VersionsFormatFirst published
20.3.26 – 22.1.5ESM-onlyJul 8, 2026

Frequently asked

Is @angular/compiler ESM-only?

@angular/compiler@22.1.5 is ESM-only. @angular/compiler dropped its CommonJS build in 13.0.0 (November 2021). The last version you can require() on every Node.js version, including 18 and older, is 12.2.17, published Nov 22, 2022.

Which version of @angular/compiler still supports CommonJS / require()?

12.2.17 is the last version of @angular/compiler with a CommonJS build. Install it with "npm install @angular/compiler@12.2.17". Every version from 13.0.0 on is ESM-only.

How do I use @angular/compiler from a CommonJS file?

Use a dynamic import: const mod = await import("@angular/compiler"). On Node.js 20.19+, 22.12+ and newer, a plain require("@angular/compiler") also works for ESM packages that do not use top-level await. Alternatively pin @angular/compiler@12.2.17.

Does @angular/compiler work in Bun?

Yes. import "@angular/compiler" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does @angular/compiler ship TypeScript types?

Yes. @angular/compiler bundles its own type declarations; no @types package is needed.

Links

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