esbuild-postcss-plugin

An ESBuild plugin that integrates PostCSS processing with support for CSS modules. Current version 0.0.7 is stable but infrequently updated. It allows you to apply PostCSS plugins (e.g., Autoprefixer) and CSS modules within the ESBuild bundler, with options for caching, file filtering, and module configuration. Unlike alternatives (e.g., esbuild-plugin-postcss2), this plugin explicitly supports CSS modules and provides a simple API. However, it has not been updated for over three years and may lack compatibility with newer PostCSS or ESBuild versions.