# privatenumber/esbuild-loader

💠 Speed up your Webpack with esbuild ⚡️

Repository: https://github.com/privatenumber/esbuild-loader
Canonical: https://ross.abutalabs.com/products/esbuild-loader
Language: TypeScript
License: MIT
License Family: permissive
Topics: esbuild, webpack, typescript, esnext, optimization, speedup, esbuild-loader, minification, babel, terser
Last push: 2026-08-26T18:15:53+00:00

## Health v2 (maintenance only)
Score: 92/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 77, longevity 100
- inputs: {"age_days": 2307, "days_push": 7, "days_rel": 79, "gap_med": 76, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3605, forks 103 (observed 2026-08-28T04:08:11.501141+00:00)

## What it is
A Webpack loader that uses esbuild to transpile JavaScript and TypeScript and minify output far faster than babel-loader, ts-loader, or Terser. It drops into existing Webpack configs as a drop-in replacement for those slower tools.

## Use cases
- speed up webpack builds
- replace babel-loader with esbuild
- replace ts-loader with faster typescript transpilation
- replace terser with faster js minification
- compile typescript in webpack without type checking
- reduce webpack build times for large projects

## When to choose
- your Webpack builds are slow due to babel-loader, ts-loader, or Terser
- you want faster transpilation and minification without migrating off Webpack
- you don't need Babel plugin ecosystem or full TypeScript type-checking during bundling

## When to avoid
- you rely on Babel plugins or custom transforms esbuild doesn't support
- you need TypeScript type-checking as part of the build (use tsc separately)
- you're not using Webpack (use esbuild or Vite directly)

## Facets
- artifact type: plugin
- maturity: active
- function: build-tool, compiler, developer-tools
- domain: web-development, frontend, developer-tools, performance
- platform: cross-platform
- tags: webpack-loader, esbuild, transpilation, minification, typescript, babel-replacement, terser-replacement, nodejs, javascript

## Member repositories
- privatenumber/esbuild-loader (main) score 92

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:11.501141+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 2026-08-29T18:33:42.522002+00:00, confidence not recorded.
  - readme: https://github.com/privatenumber/esbuild-loader (fetched 2026-08-28T04:08:11.501141+00:00, sha 4c87c5e1f06e)
  - registry_npm: https://registry.npmjs.org/esbuild-loader (fetched 2026-08-29T09:27:02.415196+00:00, sha 98d2f78cca8f)
- Data as of 2026-08-30T08:39:29.467469+00:00.