CSS Preprocessors
Autoprefixer
PostCSS plugin that adds vendor prefixes automatically.
Autoprefixer
CSS Preprocessors
cssnano
Modular CSS minifier built on the PostCSS ecosystem.
cssnano
CSS Preprocessors
Less
A CSS preprocessor that extends CSS with dynamic behavior.
Less
CSS Preprocessors
Lightning CSS
An extremely fast CSS parser, transformer, and minifier.
Lightning CSS
CSS Preprocessors
PostCSS
A tool for transforming CSS with JavaScript plugins.
PostCSS
CSS Preprocessors
PurgeCSS
Tool for removing unused CSS from a project.
PurgeCSS
CSS Preprocessors
Sass/SCSS
The most mature, stable, and powerful professional grade CSS extension language.
Sass/SCSS
CSS Preprocessors
Stylus
Expressive, robust, feature-rich CSS preprocessor.
Stylus