# @unocss/core

> The instant on-demand Atomic CSS engine.

Latest version **66.10.5** (published 2026-09-16) · MIT license · 0 weekly downloads

## Install

```sh
npm install @unocss/core
pnpm add @unocss/core
yarn add @unocss/core
bun add @unocss/core
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; popular repo.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 66.10.5 |
| Published | 2026-09-16 |
| First published | 2021-10-23 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM |
| Dependencies | 0 |
| Unpacked size | 87.4 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 18964 |
| Author | Anthony Fu <anthonyfu117@hotmail.com> |
| Maintainers | antfu, unocss-bot, zyyv |
| Keywords | unocss, atomic-css, atomic-css-engine, css, tailwind, windicss |

## Links

- npm: https://www.npmjs.com/package/@unocss/core
- Repository: https://github.com/unocss/unocss
- Homepage: https://unocss.dev
- Issues: https://github.com/unocss/unocss/issues
- Funding: https://github.com/sponsors/antfu
- npm.io page: https://npm.io/package/@unocss/core

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## Recent versions

- 66.10.5 (latest) — 2026-09-16
- 66.10.4 — 2026-09-15
- 66.10.3 — 2026-09-15
- 66.10.2 — 2026-09-11
- 66.10.1 — 2026-09-09
- 66.10.0 — 2026-09-04
- 66.9.2 — 2026-09-02
- 66.9.1 — 2026-09-01
- 66.9.0 — 2026-09-01
- 66.8.1 — 2026-08-21
- 66.8.0 — 2026-08-19
- 66.8.0-beta.1 — 2026-08-19
- 66.7.5 — 2026-07-07
- 66.7.4 — 2026-06-29
- 66.7.4-beta.1 — 2026-06-29
- … 453 more at https://npm.io/package/@unocss/core/versions

## README

# @unocss/core

The core engine of [UnoCSS](https://github.com/unocss/unocss) without any presets. It can be used as the engine of your own atomic CSS framework.

## Documentation

Please refer to the [documentation](https://unocss.dev/tools/core).

## License

MIT License &copy; 2021-PRESENT [Anthony Fu](https://github.com/antfu)

---
_Source: https://npm.io/package/@unocss/core · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._