@unocss/core is the engine powering UnoCSS, a highly customizable and performant CSS-in-JS alternative. It offers core utility functions for transforming atomic CSS notations into CSS rules. You can use it to build custom UnoCSS integrations beyond existing frameworks or extend its functionalities. The package provides essential abstraction for tokenization, rule generation, and variant handling, enabling developers to create tailored styling solutions.
The npm package @unocss/core saw frequent releases between October 2021 and October 2022, with peaks in November 2021 and March 2022. Release frequency decreased significantly after that, with fewer versions per month in 2023 and 2024. The releases have been varied in 2025 so far.
@unocss/core downloads surged from March 2024 to June 2025, peaking at 1,816,564. Downloads generally remained strong, consistently above 1.2 million, with slight fluctuations throughout the period. August 2025 downloads reached 1,760,621, indicating continued high usage, although it isn't a complete month.
