CSS parser / stringifier

Style form elements when they are empty

Parses and determines if a given CSS Media Query matches a set of values.

Fast CSS Selectors API Engine

A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations

Use Custom Media Queries in CSS

Discard comments in your CSS files with PostCSS.

Normalize wrapping quotes for CSS string literals.

CSS dictionary for cspell.

Reduce CSS calc() function to the maximum

Minify colors in your CSS files with PostCSS.

CSS modules support for TypeScript

A simple list of CSS shorthand properties and which longhand properties they expand to

The custom `sort` method (mobile-first / desktop-first) of CSS media queries for `postcss-sort-media-queries`, `css-mqpacker` or `pleeease` (which uses css-mqpacker) or, perhaps, something else ))

Convert values with PostCSS (e.g. ms -> s)

Style elements relative to other elements in CSS

Use Custom Properties Queries in CSS

A Vite plugin that takes the CSS and adds it to the page through the JS. For those who want a single JS file.

Discard duplicate rules in your CSS files with PostCSS.

Use double-position gradients in CSS