# MoOx/postcss-cssnext

`postcss-cssnext` has been deprecated in favor of `postcss-preset-env`.

Repository: https://github.com/MoOx/postcss-cssnext
Canonical: https://ross.abutalabs.com/products/postcss-cssnext
Homepage: https://moox.io/blog/deprecating-cssnext/
Language: JavaScript
License: MIT
License Family: permissive
Topics: postcss, css, cssnext, postcss-plugins, javascript
Archived: true
Last push: 2024-07-02T10:16:56+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": 4415, "days_push": 792, "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 5258, forks 184 (observed 2026-08-28T04:09:13.794839+00:00)

## What it is
postcss-cssnext is a PostCSS plugin that lets developers use tomorrow's CSS syntax today by transforming modern CSS specs into more compatible CSS. It has been deprecated in favor of postcss-preset-env.

## Use cases
- use future CSS syntax in older browsers
- transpile modern CSS features to compatible CSS
- avoid waiting for browser support of new CSS specs
- set up a PostCSS-based CSS build pipeline

## When to choose
- maintaining a legacy project already using postcss-cssnext
- you need the exact historical cssnext behavior

## When to avoid
- starting a new project - use postcss-preset-env instead
- you need actively maintained CSS tooling
- you want current CSS spec support

## Facets
- artifact type: plugin
- maturity: abandoned
- function: css-framework, build-tool
- domain: web-development, frontend
- platform: -
- tags: postcss, css-transpilation, deprecated, cssnext, future-css-syntax, nodejs, javascript

## Member repositories
- MoOx/postcss-cssnext (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:13.794839+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 2026-08-29T17:59:31.496765+00:00, confidence not recorded.
  - readme: https://github.com/MoOx/postcss-cssnext (fetched 2026-08-28T04:09:13.794839+00:00, sha 4a32aaaf5b76)
  - homepage: https://moox.io/blog/deprecating-cssnext/ (fetched 2026-08-29T08:54:53.578910+00:00, sha 09879a931e3c)
  - registry_npm: https://registry.npmjs.org/postcss-cssnext (fetched 2026-08-29T08:54:53.590776+00:00, sha 46ce9a8aa26a)
  - site_page: https://moox.io/resume (fetched 2026-08-29T08:54:53.588363+00:00, sha b9c02a51781d)
- Data as of 2026-08-30T08:39:29.467469+00:00.