# trivago/parallel-webpack

Builds multi-config webpack projects in parallel

Repository: https://github.com/trivago/parallel-webpack
Canonical: https://ross.abutalabs.com/products/parallel-webpack
Language: JavaScript
License: BSD-3-Clause
License Family: permissive
Archived: true
Last push: 2022-01-25T15:37:34+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3919, "days_push": 1681, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1476, forks 93 (observed 2026-08-28T04:04:50.235491+00:00)

## What it is
parallel-webpack is an npm CLI tool that runs multiple webpack configurations in parallel across CPU cores, significantly speeding up multi-config builds. It also provides helpers to generate configuration variants from option combinations.

## Use cases
- build multiple webpack configs in parallel to speed up CI
- generate many build variants of the same webpack config
- reduce long webpack build times by using all CPU cores
- run webpack builds for multiple targets like umd, amd, commonjs2
- parallelize minified and non-minified bundle builds

## When to choose
- your webpack project exports an array of many configurations
- CI builds take too long due to many webpack variants
- you want to fan out builds across all CPU cores

## When to avoid
- you only have a single webpack configuration
- you are on webpack 5 with modern parallel alternatives or limited CPU cores
- the project appears to be in maintenance mode with few recent updates

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: build-tool, cli
- domain: developer-tools, web-development, frontend
- platform: cli, cross-platform
- tags: webpack, parallel-builds, build-performance, configuration-variants, nodejs

## Member repositories
- trivago/parallel-webpack (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:50.235491+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 2026-08-30T04:34:29.096858+00:00, confidence not recorded.
  - readme: https://github.com/trivago/parallel-webpack (fetched 2026-08-28T04:04:50.235491+00:00, sha 0833035a014d)
  - registry_npm: https://registry.npmjs.org/parallel-webpack (fetched 2026-08-29T11:42:03.053509+00:00, sha a8d698a4f03b)
- Data as of 2026-08-30T08:39:29.467469+00:00.