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unocss

The instant on-demand atomic CSS engine.

stars★ 18.9k
forks⑂ 975
Open issues145
Primary languageTypeScript
LicenseOther
Last updatedtoday

Overview

unocss is a CSS & UI project, described by its maintainers as: "The instant on-demand atomic CSS engine.." Written primarily in TypeScript, it is a widely used project on GitHub, with roughly 18.9k stars and 975 forks as of the latest data. Topics tagged by the maintainers include atomic-css, engine, unocss, vite-plugin — see the "Key topics" section below for a quick explanation of each.

Key topics

Getting started

Installation steps vary depending on how a project is packaged, so the most reliable source is always the official README. As a starting point:

Open the official repository ↗

How it compares

Here is how this project sits alongside a few other tools in the same category:

Questions about this project

What is unocss?
unocss is a CSS & UI project, described by its maintainers as: "The instant on-demand atomic CSS engine.." Written primarily in TypeScript, it is a widely used project on GitHub, with roughly 18.9k stars and 975 forks as of the latest data. Topics tagged by the maintainers include atomic-css, engine, unocss, vite-plugin — see the "Key topics" section below for a quick explanation of each.
What license does unocss use?
Other
How popular is unocss on GitHub?
unocss has roughly 18.9k stars and 975 forks on GitHub as of the latest data.
Is unocss actively maintained?
Based on its GitHub activity, this repository has been updated recently, which is generally a good sign of active maintenance.
What language is unocss written in?
unocss is written primarily in TypeScript.

Repository info

Ownerunocss
Primary languageTypeScript
LicenseOther
CreatedOctober 1, 2021
Last updatedJuly 9, 2026
Open issues145
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