# UnoCSS

Atomic CSS engine that generates utility styles on demand, with every feature supplied by presets.


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

## Record

### Links

- home: https://unocss.dev
- repository: https://github.com/unocss/unocss
- docs: https://unocss.dev/
- bluesky: https://bsky.app/profile/unocss.dev

### Identity

- status: active
- maintainer: Anthony Fu
- maintainerType: unknown
- parent: unknown
- firstRelease: 2021
- 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: local, browser
- renderingModes: not applicable
- installMethod: npm

### License

- licenseModel: open-source
- license: MIT

### Releases

- currentMajor: 66
- latestReleaseDate: 2026-10-26

### Adoption

- githubStargazers: 18988
- packagistDownloads: not applicable
- npmWeeklyDownloads: 577187
- contributors: 420
- pluginCount: unknown
- packagistMonthlyDownloads: unknown
- ecosystemsMonthlyDownloads: unknown
- httpArchiveSites: 5600
- wordpressActiveInstalls: unknown
- dependentRepos: 4166
- dependentPackages: 1042

### Sources

- urls: https://unocss.dev/ (read 2026-10-28)
- urls: https://github.com/unocss/unocss (read 2026-10-28)
- urls: https://github.com/unocss/unocss/blob/main/packages-presets/unocss/README.md (read 2026-10-28)
- maintainer: https://unocss.dev/ (read 2026-10-28)
- language: https://github.com/unocss/unocss (read 2026-10-28)
- category: https://unocss.dev/ (read 2026-10-28)
- installMethod: https://unocss.dev/integrations/vite (read 2026-10-28)
- installMethod: https://unocss.dev/integrations/runtime (read 2026-10-28)
- installMethod: https://unocss.dev/integrations/cli (read 2026-10-28)
- runsAs: https://unocss.dev/integrations/cli (read 2026-10-28)
- runsAs: https://unocss.dev/integrations/runtime (read 2026-10-28)
- license: https://registry.npmjs.org/unocss/latest (read 2026-10-28)
- license: https://unocss.dev/ (read 2026-10-28)
- licenseModel: https://unocss.dev/ (read 2026-10-28)
- firstRelease: https://github.com/unocss/unocss/releases/tag/v0.1.0-beta.1 (read 2026-10-28)
- currentMajor: https://api.github.com/repos/unocss/unocss/releases (read 2026-10-28)
- latestReleaseDate: https://api.github.com/repos/unocss/unocss/releases (read 2026-10-28)
- githubStargazers: https://api.github.com/repos/unocss/unocss (read 2026-10-28)
- contributors: https://api.github.com/repos/unocss/unocss/contributors (read 2026-10-28)
- npmWeeklyDownloads: https://api.npmjs.org/downloads/range/2026-09-28:2026-10-04/unocss (read 2026-10-28)
- dependentPackages: https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/unocss (read 2026-10-28)
- dependentRepos: https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/unocss (read 2026-10-28)
- httpArchiveSites: https://cdn.httparchive.org/v1/technologies (read 2026-10-28)

## Notes

UnoCSS is an atomic CSS engine. It generates utility classes on demand and ships no utilities of its own: every feature comes from presets. A project adds it to its build, for example through the Vite integration, installing the `unocss` npm package. A command line interface runs it on a developer's machine, and a runtime build loaded from a CDN runs the engine in the browser.

Presets supply the utilities. Shortcuts alias utilities, attributify groups them in attributes, pure CSS icons are available, and CSS directives such as `@apply` reuse utilities. Anthony Fu maintains the project.

---

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