EQCSS is a CSS reprocessor that introduces Element Queries, Scoped CSS, selectors for parent, next, and previous elements to all browsers IE8 and up

components css reprocessor

a flexible style-tag based CSS reprocessor

CSSplus is a collection of CSS Reprocessor plugins that dynamically update CSS variables

A CSS parser, transformer, and minifier written in Rust

Algorithms to help you parse CSS from an array of tokens.

a CSS selector compiler/engine

Open Web data by the Mozilla Developer Network

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

Solve CSS math expressions

PostCSS plugin for CSS Modules to pass arbitrary values between your module files

Tokenize CSS

css loader module for webpack

Parse CSS color values

TailwindCSS v4.0 compatible replacement for `tailwindcss-animate`.

CSS color - Resolve and convert CSS colors.

extracts CSS into separate files

A well-tested CSS minifier

A utility-first CSS framework for rapidly building custom user interfaces.

PostCSS plugin to replace overflow-wrap with word-wrap or optionally retain both declarations.