# standard-things/esm

Tomorrow's ECMAScript modules today!

Repository: https://github.com/standard-things/esm
Canonical: https://ross.abutalabs.com/products/esm
Language: JavaScript
License: NOASSERTION
License Family: other
Topics: es6, es6-modules, esmodules, esm, nodejs
Archived: true
Last push: 2024-04-10T19:03:12+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3387, "days_push": 875, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5241, forks 144 (observed 2026-08-28T04:09:13.549704+00:00)

## What it is
A zero-dependency ECMAScript module loader for Node.js that enables ESM syntax (import/export, import.meta, dynamic import) in Node 6+ without Babel or bundling. It provides full CommonJS interoperability and can be enabled via require hook or the -r esm flag.

## Use cases
- use ES module import/export syntax in older Node.js versions
- run ESM files with node -r esm without a build step
- mix CommonJS and ES modules in the same project
- enable ESM support in a package without transpiling with Babel
- load ES modules in the Node REPL
- pass test262-compliant module behavior in Node

## When to choose
- you're stuck on an older Node.js version without native ESM support
- you need ESM syntax with full CommonJS interoperability and no build tooling
- you want a zero-dependency, production-ready module loader

## When to avoid
- you're on modern Node.js with native ESM support (use built-in modules)
- you need actively developed tooling with ongoing updates
- you rely on .mjs files with advanced esm options

## Facets
- artifact type: library
- maturity: maintenance
- function: interpreter, developer-tools
- domain: developer-tools, programming-languages, backend
- platform: -
- tags: esm, es6-modules, commonjs, module-loader, babel-less, zero-dependency, nodejs, javascript

## Member repositories
- standard-things/esm (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:13.549704+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:59:37.232053+00:00, confidence not recorded.
  - readme: https://github.com/standard-things/esm (fetched 2026-08-28T04:09:13.549704+00:00, sha 18b70d70f762)
  - registry_npm: https://registry.npmjs.org/esm (fetched 2026-08-29T08:55:03.776197+00:00, sha c3fa12bd2f81)
- Data as of 2026-08-30T08:39:29.467469+00:00.