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CSS Pre/Post Processing

Tools that convert or transform CSS from advanced syntaxes (Sass, Less, etc.), apply autoprefixing or lint checks, and optimize stylesheets.

27 projects

13,371 contributors

$32M

Less.js

Less.js is a dynamic stylesheet language that extends CSS with dynamic behavior such as variables, mixins, operations and functions. It runs on both the client-side (browser) and server-side (with Node.js).

Contributors

3,974

Organizations

1,346

Software value

$2M

UnoCSS

UnoCSS is an atomic CSS engine that provides instant, on-demand atomic CSS generation with high performance and flexibility. It offers features like attribute mode, pure CSS icons, shortcuts, and variants, while maintaining compatibility with Tailwind CSS and Windi CSS utilities.

Contributors

2,555

Organizations

560

Software value

$3.5M

PostCSS

PostCSS is a tool for transforming CSS with JavaScript plugins. It allows developers to automate CSS operations like adding vendor prefixes, parsing future CSS syntax, handling variables and mixins, and optimizing output through a flexible plugin ecosystem.

Contributors

1,535

Organizations

511

Software value

$483K

Autoprefixer

Autoprefixer is a PostCSS plugin that parses CSS and automatically adds vendor prefixes to CSS rules using values from Can I Use. It ensures proper browser compatibility by adding only the necessary prefixes based on current browser popularity and property support data.

Contributors

1,530

Organizations

492

Software value

$518K

Dart Sass

Dart Sass is the primary implementation of the Sass CSS preprocessor language, written in Dart. It compiles SCSS and indented syntax files to CSS, offering features like variables, nesting, mixins, and functions to enhance CSS development.

Contributors

1,364

Organizations

430

Software value

$3.1M

cssnano

A modular CSS minifier that helps reduce CSS file sizes through various optimization techniques like removing whitespace, merging declarations, and optimizing values while ensuring output quality

Contributors

1,129

Organizations

424

Software value

$4.9M

Lightning CSS

Lightning CSS is a high-performance CSS parser, transformer, and minifier written in Rust that provides fast and efficient CSS processing capabilities. It can be used as a standalone tool or integrated into build systems and bundlers.

Contributors

823

Organizations

317

Software value

$3.7M

PostCSS Plugins

A collection of PostCSS plugins maintained by the csstools organization that provide various CSS transformation and processing capabilities

Contributors

461

Organizations

152

Software value

$14M

Autoprefixer for Ruby on Rails

Autoprefixer for Ruby and Ruby on Rails

This project hasn't been onboarded to LFX Insights.

CSSO

CSS minifier with structural optimizations

This project hasn't been onboarded to LFX Insights.

Encore

A simple but powerful API for processing & compiling assets built around Webpack

This project hasn't been onboarded to LFX Insights.

Frontend Infrastructure Team Projects

A monorepo containing assorted Frontend Infrastructure Team projects

This project hasn't been onboarded to LFX Insights.

Gulp Sass

SASS plugin for gulp

This project hasn't been onboarded to LFX Insights.

Less Loader

Compiles Less to CSS

This project hasn't been onboarded to LFX Insights.

MiniCssExtractPlugin

Lightweight CSS extraction plugin

This project hasn't been onboarded to LFX Insights.

PurgeCSS

Remove unused CSS

This project hasn't been onboarded to LFX Insights.

Sprockets

Rack-based asset packaging system

This project hasn't been onboarded to LFX Insights.

Stylus

Expressive, robust, feature-rich CSS language built for nodejs

This project hasn't been onboarded to LFX Insights.

UIkit

A lightweight and modular front-end framework for developing fast and powerful web interfaces

This project hasn't been onboarded to LFX Insights.

postcss-loader

PostCSS loader for webpack

This project hasn't been onboarded to LFX Insights.

rollup-plugin-postcss

Seamless integration between Rollup and PostCSS.

This project hasn't been onboarded to LFX Insights.
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