# antfu/esno

Alias to `tsx`

Repository: https://github.com/antfu/esno
Canonical: https://ross.abutalabs.com/products/esno
Homepage: https://github.com/esbuild-kit/tsx
Language: TypeScript
License Family: other
Topics: typescript, node, ts-node, esbuild, esnext, emcascript
Last push: 2024-09-29T00:24:25+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 2219, "days_push": 704, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1607, forks 27 (observed 2026-08-28T04:05:10.607571+00:00)

## What it is
esno is a Node.js runtime wrapper for running TypeScript and ESM files directly, now serving as an alias to the tsx package with automated CJS/ESM mode and caching. It lets developers execute .ts files without a separate build step.

## Use cases
- run typescript files directly in node without compiling
- execute a ts script with npx
- replace ts-node with a faster esbuild-based runner
- run esm and cjs typescript modules seamlessly
- add a typescript start script to package.

## When to choose
- you want a drop-in alias for tsx to run TypeScript in Node.js
- you need zero-config execution of TS/ESM files in scripts or CLI usage

## When to avoid
- you are starting a new project and can use tsx directly
- you need dedicated support or issue tracking, since issues are handled in the tsx repo

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: cli, interpreter, developer-tools
- domain: developer-tools, programming-languages
- platform: cli, cross-platform
- tags: typescript, esbuild, esm, ts-node, runtime, alias, command-line, nodejs

## Member repositories
- antfu/esno (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:10.607571+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 2026-08-30T03:51:47.388287+00:00, confidence not recorded.
  - readme: https://github.com/antfu/esno (fetched 2026-08-28T04:05:10.607571+00:00, sha 20f55cb55537)
  - homepage: https://github.com/esbuild-kit/tsx (fetched 2026-08-29T11:24:00.000541+00:00, sha 7929e6eafd2b)
- Data as of 2026-08-30T08:39:29.467469+00:00.