# atlassian-labs/compiled

A familiar and performant compile time CSS-in-JS library for React.

Repository: https://github.com/atlassian-labs/compiled
Canonical: https://ross.abutalabs.com/products/compiled
Homepage: https://compiledcssinjs.com
Language: TypeScript
License: Apache-2.0
License Family: permissive
Topics: css, typescript, css-in-js, reactjs, react, webpack, babel, parcel
Last push: 2026-08-26T16:51:36+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 87, longevity 100
- inputs: {"age_days": 2455, "days_push": 7, "days_rel": 8, "gap_med": 0.0, "n_releases_24m": 163}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2050, forks 75 (observed 2026-08-28T04:06:09.141231+00:00)

## What it is
Compiled is a compile-time CSS-in-JS library for React that lets you style components with a familiar css prop, styled API, and ClassNames component. It strips runtime overhead by extracting styles to atomic stylesheets via Webpack, Parcel, or Babel integrations.

## Use cases
- style react components with css-in-js without runtime cost
- extract atomic css stylesheets at build time
- migrate from styled-components or emotion to a faster alternative
- use a css prop in jsx with typescript support
- bundle styles through webpack, parcel, or babel
- style npm packages so consumers get extracted styles

## When to choose
- you use React and want zero-runtime CSS-in-JS with a familiar API
- you need atomic CSS extraction for performance
- your team builds with webpack, parcel, or babel

## When to avoid
- you don't use React
- you need runtime dynamic theming that compile-time extraction can't handle
- you're not using a supported bundler or babel

## Facets
- artifact type: library
- maturity: active
- function: css-framework, build-tool, templating
- domain: frontend, web-development, web-design
- platform: browser
- tags: css-in-js, react, compile-time, atomic-css, webpack-loader, babel-plugin, parcel, typescript, styled-components-api, nodejs, web-server

## Member repositories
- atlassian-labs/compiled (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:09.141231+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 2026-08-30T02:57:34.511300+00:00, confidence not recorded.
  - readme: https://github.com/atlassian-labs/compiled (fetched 2026-08-28T04:06:09.141231+00:00, sha 391936f32dfd)
  - homepage: https://compiledcssinjs.com (fetched 2026-08-29T10:37:51.944301+00:00, sha 7150cd7f41b5)
- Data as of 2026-08-30T08:39:29.467469+00:00.