PostCSS JS is a PostCSS-based tool for working with CSS-in-JS, letting you process style objects and use PostCSS plugins such as Stylelint and RTLCSS. It can compile CSS-in-JS to CSS, convert CSS to CSS-in-JS (objectify), and parse style objects into a PostCSS Root for further processing.
Project status
- The repository appears actively maintained, with recent tagged updates spanning 2025-12-08 through 2026-02-13, and an upstream push as recently as 2026-04-21.
- The apparent update cadence is fairly steady in recent history, with updates occurring within about 2 weeks in December 2025 (5.0.2 to 5.0.3) and then about 2 months later (5.0.3 to 5.1.0).
AI summary generated Today
Recent updates
5.1.0
3 months agoRelease 5.1.0 is described as adding TypeScript types. However, the diff also includes runtime JavaScript changes in the parser and objectifier modules, plus updates to dev tooling and lockfiles.
Features5.0.3
5 months agoRelease 5.0.3 primarily focuses on performance and dependency reduction for the `objectifier` module. The release notes say it reduced dependencies and sped up `objectifier`, with no mention of behavior changes.
5.0.2
5 months agoRelease 5.0.2 is documented as a performance improvement, specifically that “dashify” was made much faster. The code diff confirms a major reimplementation of dashify (regex-based replacements replaced with a manual character loop), plus several CI workflow and dev dependency updates.
Breaking