CSS & Styling Packages
Styling utilities, CSS-in-JS, and class-composition helpers for building consistent, maintainable interface styling (Tailwind utilities, clsx, cva, Emotion).
Packages in CSS & Styling
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postcss
A CSS transformation engine that parses styles into an AST, letting JS plugins lint, prefix, and rewrite CSS — the foundation beneath Autoprefixer, Tailwind, and 200+ other tools.
Sass
The reference Dart implementation of Sass, the mature CSS preprocessor that compiles SCSS and indented syntax to standards-compliant CSS.
sass-loader
Compiles Sass and SCSS files to CSS inside a webpack build, wiring in Dart Sass or Sass Embedded automatically.
Bootstrap
The world's most popular front-end framework for building responsive, mobile-first sites
tinycolor2
Fast, dependency-free color parsing, conversion, and manipulation for JavaScript
colord
A tiny, dependency-free TypeScript library for parsing, converting, and manipulating colors in any format.
tinycss2
Low-level CSS Syntax Level 3 parser and generator for Python
node-sass
Node.js bindings to LibSass, the fast C/C++ implementation of Sass, for compiling SCSS and indented-syntax stylesheets to CSS.
postcss-value-parser
Transforms CSS declaration values and at-rule params into a traversable node tree.
Open Color
An open-source color scheme optimized for UI design, delivered as variables for CSS, Sass, and more.
esbuild-sass-plugin
An esbuild plugin that compiles Sass and SCSS to CSS with caching, source maps, and CSS Modules support.
style-to-object
Parses CSS inline style strings into plain JavaScript objects, powering markdown-to-jsx, react-markdown, and dozens of other rendering pipelines.
docusaurus-plugin-sass
Adds Sass and SCSS support to Docusaurus v2 and v3 sites via a drop-in webpack plugin.
PHP CSS Parser
A pure-PHP parser that turns CSS files into an editable object tree and back into optimized stylesheets.
CoreUI
An advanced UI library built on Bootstrap 5, adding extra components, native RTL/LTR support, and framework bindings for React, Vue, and Angular.
scssphp
A pure-PHP SCSS/Sass compiler with no native extension dependency
grass_compiler
The Rust engine that powers the grass Sass-to-CSS compiler, exposing its lexer, parser, evaluator, and serializer directly.
@acemir/cssom
A pure-JavaScript CSS parser and CSS Object Model implementation.
