# addyosmani/critical-path-css-tools

Tools to prioritize above-the-fold (critical-path) CSS

Repository: https://github.com/addyosmani/critical-path-css-tools
Canonical: https://ross.abutalabs.com/products/critical-path-css-tools
License Family: other
Last push: 2022-07-18T03:24:14+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4428, "days_push": 1507, "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 1164, forks 48 (observed 2026-08-28T04:03:49.895117+00:00)

## What it is
A curated awesome-list of tools for generating, inlining, and reporting on critical-path (above-the-fold) CSS to improve page load performance. It catalogs Node modules, server-side modules, Grunt tasks, and scripts like Penthouse, Critical, and CriticalCSS.

## Use cases
- generate critical above-the-fold css for a page
- inline critical css into html head for faster first paint
- improve pagespeed insights score by eliminating render-blocking css
- find tools to extract above-the-fold styles
- inline stylesheets asynchronously in the footer
- extract critical css during server-side rendering in react apps

## When to choose
- you need an overview of the ecosystem of critical-css tools before picking one
- you are optimizing first-paint performance and want options across build systems
- you want a reference list including node modules, grunt tasks, and server modules

## When to avoid
- you need a single maintained tool rather than a directory of links
- you need guaranteed active maintenance, as many listed tools are outdated
- you need a non-JavaScript or framework-specific solution not covered by the list

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: css-framework, build-tool, developer-tools
- domain: web-development, frontend, performance
- platform: -
- tags: critical-css, above-the-fold, awesome-list, web-performance, page-speed, css-inlining, nodejs, web-server

## Member repositories
- addyosmani/critical-path-css-tools (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:49.895117+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 2026-08-30T06:29:35.438612+00:00, confidence not recorded.
  - readme: https://github.com/addyosmani/critical-path-css-tools (fetched 2026-08-28T04:03:49.895117+00:00, sha ef929b6c2cca)
- Data as of 2026-08-30T08:39:29.467469+00:00.