JSPM

Reduce initial definitions to the actual initial value, where possible.

A modular minifier, built on top of the PostCSS ecosystem.

Optimise inline SVG with PostCSS.

PostCSS plugin to reduce calc()

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

Discard duplicate rules in your CSS files with PostCSS.

Detect/remove browser hacks from CSS files.

Trim whitespace inside and around CSS rules & declarations.

Normalize unicode-range descriptors, and can convert to wildcard ranges.

Add necessary or remove extra charset with PostCSS

Minify selectors with PostCSS.

PostCSS plugin to discard overridden @keyframes or @counter-style.

Normalize URLs with PostCSS

Merge CSS rules with PostCSS.

Normalize wrapping quotes for CSS string literals.

Minify at-rule params with PostCSS

Normalize keyword values for position into length values.

Sorts CSS declarations fast and automatically in a certain order.

Fault-tolerant CSS parser for PostCSS

Use the gap, column-gap, and row-gap shorthand properties in CSS

Use Custom Selectors in CSS

Use the rebeccapurple color keyword in CSS

Use the :focus-within pseudo-selector in CSS

Style form elements when they are empty

A tool for parsing media query lists.

Convert modern CSS into something browsers understand

Nest rules inside each other in CSS

Using more intuitive `>=`, `<=`, `>`, `<` instead of media queries min/max prefix.

Use a place-* shorthand for align-* and justify-* in CSS

Use the :any-link pseudo-class in CSS

Use Custom Media Queries in CSS

Use 4 & 8 character hex color notation in CSS

Use Custom Properties Queries in CSS

Use logical properties and values in CSS

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

Use the :focus-visible pseudo-selector in CSS

Style elements relative to other elements in CSS

Use oklab() and oklch() color functions in CSS

PostCSS plugin to transform :not() W3C CSS level 4 pseudo class to :not() CSS level 3 selectors

Enable support for case insensitive attribute matching in selectors

PostCSS plugin This project tries to fix all of flexbug's issues

PostCSS plugin to transform W3C font-variant properties to more compatible CSS (font-feature-settings)

Use space and slash separated color notation in CSS

Use double-position gradients in CSS

Use lab() and lch() color functions in CSS

Use the :dir pseudo-class in CSS

Use the overflow shorthand in CSS

PostCSS plugin to transform percentage-based opacity values to more compatible floating-point values.

Use light and dark color schemes in all browsers

PostCSS plugin postcss-page-break to fallback `break-` properties with `page-break-` alias

Display resolution-dependent images using the image-set() function in CSS

A Tailwind CSS plugin for creating beautiful animations.

PostCSS plugin to transform clamp() to combination of min/max

Use the color() function in CSS

Correctly declare progressive enhancements for CSS Custom Properties.

A pseudo-class for matching elements in a selector list

A CSS property value parser for use with PostCSS

Use hwb() color functions in CSS

Use env() variables in CSS

Use cascade layers in CSS

PostCSS plugin to fallback initial keyword.

SCSS parser for PostCSS

Use the parts of normalize.css or sanitize.css you need from your browserslist

Keep only the CSS you need based on comments and your browserslist

Replacing symbols during the linking phase of ICSS

npm query parser and tools

Utilities for PostCSS plugins

PostCSS plugin to use CSS Modules everywhere

Use logical values in the resize property

PostCSS plugin to keep rules and at-rules content in order.

Use flow-relative (inline-start and inline-end) values for float and clear

Indent-based CSS syntax for PostCSS

PostCSS syntax for parsing HTML (and HTML-like)

Gamut map css colors to fit display specific gamuts

Use interpolation methods in CSS gradient functions

Use vb and vi length units in CSS

Modify colors using the color-mod() function in CSS

A Sass parser for PostCSS, using gonzales-pe.

PostCSS plugin to transform :matches() W3C CSS pseudo class to more compatible CSS selectors

LESS parser for PostCSS

Use the gray() color function in CSS

PostCSS plugin to rebase or inline on url().

Merge keyframe and counter style identifiers.

Automatically switch PostCSS syntax by file extensions

Discard unused counter styles, keyframes and fonts.

Reduce z-index values with PostCSS.

Reduce custom identifiers with PostCSS.

Seamless integration between Rollup and PostCSS

CLI for PostCSS

PostCSS plugin for Sass-like variables

PostCSS plugin for sorting and combining CSS media queries with mobile first / **desktop first methodologies

PostCSS helpers to throw or output GNU style messages

Exclude/warn on duplicated PostCSS plugins.

PostCSS plugin for mixins

Prefix all CSS rules with a selector

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 ))

CSS modules support for TypeScript

PostCSS syntax for template literals CSS-in-JS (e. g. styled-components).

PostCSS gulp plugin

PostCSS syntax for parsing Markdown

PostCSS preset for Mantine (7.0+) applications

Autoload Plugins for PostCSS

Prefix CSS

A loader-agnostic CSS Modules implementation, based on PostCSS

PostCSS syntax for parsing CSS in JS literals

esbuild plugin for sass/scss files supporting both css loader and css result import (lit-element)

PostCSS plugin for exposing JavaScript functions

PostCSS plugin to transform CSS Custom Properties(CSS variables) syntax into a static representation

Autoload Options for PostCSS

Use the display-p3-linear color space on the color() function in CSS

Use the alpha() function in CSS

A CSS post-processor that generates pixel fallbacks for rem units.

PostCSS plugin to transform W3C CSS color function to more compatible CSS.

PostCSS plugin for fallback image-set

PostCSS plugin to transform W3C CSS hwb() color to more compatible CSS (rgb() (or rgba()))

PostCSS plugin to transform W3C CSS Color Module Level 4 hsl() new syntax to more compatible CSS (comma-separated hsl() or hsla())

PostCSS plugin enabling custom properties sets references

Use the system-ui font family in CSS

PostCSS plugin to add single-colon CSS 2.1 syntax pseudo selectors (i.e. :before)

A BEM linter for postcss

A CSS post-processor that converts px to rem.

PostCSS parser plugin for converting Stylus syntax to PostCSS AST.

Convert CSS shorthand filters to SVG ones

PostCSS plugin to transform rgba() to hexadecimal

PostCSS plugin to transform W3C CSS Color Module Level 4 rgb() new syntax to more compatible CSS (comma-separated rgb() or rgba())

Use Sass-like variables, conditionals, and iterators in CSS

PostCSS plugin to build Cascading Style Sheets (CSS) with Left-To-Right (LTR) and Right-To-Left (RTL) rules

Parses calc of css and converts it to AST.

PostCSS plugin that enables SASS-like for loop syntax in your CSS

PostCSS plugin to work around CSS Modules values limitations

PostCSS plugin that allows referencing property values without a variable

Functional CSS for humans

Use the @extend at-rule and functional selectors in CSS

PostCSS plugin to transform the :is() CSS pseudo-class into more compatible CSS selectors.

PostCSS plugin to restore the way to resolve modules CSS Modules values paths that css-loader used before 1.0

Simplifying running unit tests with coverage for Typescript projects.

PostCSS sharable plugins preset for WordPress development.

PostCSS plugin to place rules directly at the root

Gatsby plugin to handle PostCSS

A PostCSS plugin that is used to wrap css styles with a css selector to constrain their affect on parent elements in a page.

PostCSS plugin Rebase URLs to a given root URL.

PostCSS plugin to reference an SVG file and control its attributes with CSS syntax

Universal Rollup plugin for styles: PostCSS, Sass, Less, Stylus and more

Gulp plugin for running Stylelint results through various reporters.

Keep a watchful eye on your css colors

PostCSS plugin for Flexibility polyfill

PostCSS plugin that extracts and wraps rules containing `:hover` pseudo-classes in `@media (hover: hover) {}` media queries

PostCSS plugin to inline images into css

Postcss compiler for Broccoli

Apply several post-processors to your CSS using PostCSS

Minify CSS with cssnano.

PostCSS plugin to minify CSS using CSSO

PostCSS plugin for RTL-optimizations

Use Sass as a PostCSS plugin

PostCSS plugin that adds shorthand hex methods to rgba() values

As close to cssnext @extend as possible for PostCSS

PostCSS plugin for css modules to local-scope classes and ids

Apply several post-processors to your CSS using PostCSS

A CSS Modules parser to extract tokens from the css file

PostCSS plugin to manage assets

Use postcss to process your css with a large selection of JavaScript plug-ins.

Postcss compiler for Broccoli, operates on individual files.

PostCSS plugin to remove comments and unnecessary whitespace from CSS files

PostCSS plugin to discard rules, atrules or declarations by selector, RegExp or callback function

Storybook addon used to run the PostCSS preprocessor with Sass support against your stories.

Discard font faces by type, with PostCSS.

PostCSS plugin to iterate through values

PostCSS plugin to insert 3D hack before will-change property

Merge longhand inline CSS properties into shorthand with PostCSS.

PostCSS syntax for parsing styled components

A PostCSS plugin to extend postcss-import path resolver to allow glob usage as path

Add a header to a file.

PostCSS plugin throws a error on any warning from previous PostCSS plugins

PostCSS plugin to inline @import rules content with extra features

PostCSS plugin for replacing strings.

Some general purpose helpers for PostCSS, created to make working with url() and @import values more easy.

postcss plugin to prefix all css selector classes and ids

PostCSS plugin to minify CSS with clean-css

Powerful & easy-to-use responsive resizing engine.

A PostCSS plugin that takes existing CSS files and splits out the annotated critical styles into a seperate file.

LostGrid is a powerful grid system built in PostCSS that works with any preprocessor and even vanilla CSS.

Universal Rollup plugin for styles: PostCSS, Sass, Less, Stylus and more

Plugin to add PostCSS support to styled-jsx

The Stencil PostCSS Plugin

PostCSS plugin to use lightningcss

PostCSS plugin to fix height/min-height: 100vh on iOS

PostCSS plugin to add :focus-visible selector to every :hover for keyboard accessibility

PostCSS plugin to replace CSS variables with their static values

PostCSS plugin to replace easing names to cubic-bezier()

Checks that you are using the classes exported by your css modules using postcss.

PostCSS plugin to swap :root for :host

PostCSS plugin to report warning messages right in your browser

Seamless integration between esbuild and PostCSS

Style range inputs with unprefixed pseudo-classes

Allow postcss to support inline comments

Beautify CSS files.

PostCSS plugin to convert pseudo-classes to classes for testing purposes

PostCSS plugin inlines remote files.

PostCSS plugin to combine equal media query rules.

Convert rem (root em) units to px units using PostCSS. Based on postcss-pxtorem.

Use this in CSS

PostCSS plugin to add cascade layers to CSS

PostCSS plugin for React Strict DOM

PostCSS plugin for sass-like Map Function

PostCSS plugin to replace output file names with HASH algorithms (md5, sha256, sha512, etc) and string length of your choice - for cache busting

PostCSS plugin to convert rem values to px values

PostCSS plugin that creates fluidly interpolated length values

PostCSS plugin that updates the standard object-fit tag to work with the object-fit-images polyfill for browsers that do not natively support object-fit.

Functional CSS for humans

PostCSS plugin for transforming min/max-width/height media queries to ems.

Custom CSS parser via PostCSS for GrapesJS

Use PostCSS with PostHTML

PostCSS plugin to reference any ancestor selector in nested CSS

CSS solution for light/dark/auto theme switcher for websites

PostCSS plugin that enables @if statements in your CSS

PostCSS plugin that adds !important to style declarations safely

PostCSS plugin that adds responsive magic to font-size

Tailwind CSS plugin that generates box-shadow utility values exactly as they're defined in the config.

PostCSS plugin to create smooth linear-gradients that approximate easing functions.

PostCss plugin to use CSS Custom Properties in at-rule @each, @for, @if, @else

stylefmt is a tool that automatically formats CSS according to stylelint rules

PostCSS plugin to convert vmin to vm for IE9

PostCSS plugin that adds shorthand attributes methods to position declarations.

PostCSS plugin to add opacity filter for IE8 and legacy browsers

PostCSS plugin to add a collection of mixins, shortcuts, helpers and tools for your CSS

Adds postcss support to @roots/bud projects

PostCSS plugin that adds `fix` and `fix-legacy` attributes to the `clear` property, for self-clearing of children.

PostCSS plugin to assign a cascade layer to files.

A little bag of CSS superpowers

PostCSS plugin for adding a parent selector to all rules in a css file.

PostCSS plugin custom media generator

PostCSS plugin for escape sass unicode characters

Enable PostCSS plugins directly in your stylesheet.

CSS to TailwindCSS converter

Define multiple edges, styles, and colors inside the border property in CSS

A CSS post-processor that converts px to viewport units (vw, vh, vmin, vmax).

PostCSS plugin that adds a font-path attribute to @font-face which expands to the FontSpring syntax

Adds new pseudo-elements to inputs for easy cross-browser styling of their inner elements

PostCSS plugin that lets you create custom aliases for CSS properties with an @rule

PostCSS plugin that wraps hover selectors in a media media that's only valid on devices that support true hover events.

A CSS Modules parser to extract tokens from the css file

PostCSS plugin enabling quantity-queries

Strip inline comments using the postcss-scss parser

A postcss plugin to prefix each rule with a specific selector

Inline SVGs in CSS. Supports SVG Fragments, SVG Parameters.

Use this in CSS

A PostCSS plugin to support aspect-ratio property.

PostCSS plugin to define and use custom properties

css-codemod is a toolkit for running codemods over many CSS files to transform code, powered by [PostCSS](https://postcss.org):

A streamlined reinterpretation of CSS Modules