# StyleX

JavaScript styling library whose build-time compiler turns style definitions into atomic CSS class names.


Source: https://findsoftware.frbit.cloud/stylex/
Last reviewed: 2026-10-28
Listed since: 2026-10-28

## Record

### Links

- home: https://stylexjs.com
- repository: https://github.com/facebook/stylex
- docs: https://stylexjs.com/docs/learn/
- x: https://x.com/stylexjs
- bluesky: https://bsky.app/profile/stylexjs.bsky.social

### Identity

- status: active
- maintainer: Meta Platforms, Inc.
- maintainerType: company
- parent: unknown
- firstRelease: 2022
- hqCountry: unknown

### Kind

- category: css-framework
- hosting: not applicable
- language: javascript
- runtime: unknown
- runtimeMin: not applicable
- basedOn: unknown

### Content

- contentStore: not applicable
- databases: not applicable
- adminUi: not applicable
- headlessApi: not applicable
- templating: not applicable
- i18n: not applicable

### Rendering and deploy

- runsAs: unknown
- renderingModes: not applicable
- installMethod: npm

### License

- licenseModel: open-source
- license: MIT

### Releases

- currentMajor: 0
- latestReleaseDate: 2026-09-15

### Adoption

- githubStargazers: 10442
- packagistDownloads: not applicable
- npmWeeklyDownloads: 2541441
- contributors: 146
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: unknown
- wordpressActiveInstalls: unknown
- dependentRepos: 1
- dependentPackages: 6

### Sources

- urls: https://stylexjs.com/ (read 2026-10-28)
- urls: https://api.github.com/repos/facebook/stylex (read 2026-10-28)
- urls: https://stylexjs.com/docs/learn/ (read 2026-10-28)
- maintainer: https://github.com/facebook/stylex/blob/main/LICENSE (read 2026-10-28)
- language: https://api.github.com/repos/facebook/stylex (read 2026-10-28)
- category: https://stylexjs.com/docs/learn/ (read 2026-10-28)
- installMethod: https://stylexjs.com/docs/learn/installation/ (read 2026-10-28)
- installMethod: https://stylexjs.com/docs/learn/installation/ (read 2026-10-28)
- license: https://github.com/facebook/stylex/blob/main/LICENSE (read 2026-10-28)
- licenseModel: https://github.com/facebook/stylex/blob/main/LICENSE (read 2026-10-28)
- currentMajor: https://api.github.com/repos/facebook/stylex/releases (read 2026-10-28)
- latestReleaseDate: https://api.github.com/repos/facebook/stylex/releases (read 2026-10-28)
- firstRelease: https://registry.npmjs.org/@stylexjs/stylex (read 2026-10-28)
- githubStargazers: https://api.github.com/repos/facebook/stylex (read 2026-10-28)
- contributors: https://api.github.com/repos/facebook/stylex/contributors (read 2026-10-28)
- npmWeeklyDownloads: https://api.npmjs.org/downloads/range/2026-09-28:2026-10-04/@stylexjs/stylex (read 2026-10-28)
- dependentPackages: https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/@stylexjs%2Fstylex (read 2026-10-28)
- dependentRepos: https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/@stylexjs%2Fstylex (read 2026-10-28)

## Notes

StyleX is a styling library for JavaScript user interfaces. A build-time compiler, run through a Babel or PostCSS plugin or the StyleX CLI, turns style definitions into a static CSS file of atomic class names, and the runtime package is installed from npm in every project that uses it. The docs call StyleX a CSS-in-JS library that is most useful when an application's UI is authored in JavaScript, and they state that it is framework-agnostic rather than a CSS-in-React solution. Meta Platforms, Inc. maintains the project in a monorepo, and this record covers its core package.

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Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Attributes are recorded, never scored; absent means unknown.
Credit, in full: FindSoftware, CC BY 4.0