JSPM

Strict TypeScript and Flow types for style based on MDN data

Converts CSS to JSON and back.

Open Web data by the Mozilla Developer Network

Parse markdown comments in your css to html

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

a CSS selector compiler/engine

A command-line tool to scan your code for TODO and FIXME comments.

Color conversion and manipulation with CSS string support

Parser and generator for CSS color strings

A JavaScript library for escaping CSS strings and identifiers while generating the shortest possible ASCII-only output.

Parses and compiles CSS nth-checks to highly optimized functions.

Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website

Fast CSS Selectors API Engine

A react component toolset for managing animations

css loader module for webpack

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

tiny modular DOM lib for ie9+

A well-tested CSS minifier

A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.

PostCSS loader for webpack

A CSS Modules transform to make local scope the default

Convert a kebab-cased CSS property into a camelCased DOM property.

PostCSS plugin to import CSS files

extracts CSS into separate files

ICSS utils for postcss ast

CSS minifier with structural optimisations

PostCSS plugin to unwrap nested rules like how Sass does it

A pure JavaScript implementation of Sass.

A modern CSS parser and stringifier with TypeScript support

A simple utility for conditionally joining classNames together

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

Optimise inline SVG with PostCSS.

Merge longhand properties into shorthand with PostCSS.

Generate a hex color from the given text

Ensure CSS selectors are unique.

PostCSS for CSS-in-JS and styles in JS objects

Discard duplicate rules in your CSS files with PostCSS.

Merge Tailwind CSS classes without style conflicts

Extract "above the fold styles" which are wrapped in CSS comments.

PostCSS plugin to reduce calc()

Full CSS support for JSX without compromises

Add necessary or remove extra charset with PostCSS

Color your terminal using CSS/hex color codes

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

Minify gradient parameters with PostCSS.

Detect/remove browser hacks from CSS files.

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

Trim whitespace inside and around CSS rules & declarations.

Solve CSS math expressions

Just create a single stylesheet...

Tokenize CSS

Discard empty rules and values with PostCSS.

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

Minify colors in your CSS files with PostCSS.

Minify font declarations with PostCSS

Ensure values are ordered consistently in your CSS.

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

👑 A tiny yet powerful tool for high-performance color manipulations and conversions

Merge CSS rules with PostCSS.

Minify selectors with PostCSS.

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

Minify at-rule params with PostCSS

Normalize URLs with PostCSS

Normalize wrapping quotes for CSS string literals.

Sorts CSS declarations fast and automatically in a certain order.

Normalize keyword values for position into length values.

Parse CSS inline style to JavaScript object.

Determine selector specificity with postcss-selector-parser

Parse CSS color values

Color helpers to ease transformation between formats, gamut, etc

A highly flexible comments-only documentation generator.

An inline style parser.

Grunt StyleDocco style guide generator.

List of known CSS properties

Fault-tolerant CSS parser for PostCSS

Generate documentation and style guides with design patterns from stylesheets.

hast utility to create an element from a simple CSS selector

Class Variance Authority 🧬

CSS minimizer (minifier) plugin for Webpack

Use Custom Media Queries in CSS

Webpack loader that resolves relative paths in url() statements based on the original source file

Use 4 & 8 character hex color notation in CSS

Use logical properties and values in CSS

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

A list of all CSS color keywords.

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

Leaner CSS

CSS for the <Component> Age. Style components your way with speed, strong typing, and flexibility.

Use Custom Selectors in CSS

Use the :focus-visible pseudo-selector in CSS

Style elements relative to other elements in CSS

Use the rebeccapurple color keyword in CSS

A list of CSS features and their positions in the process of becoming implemented web standards

Nest rules inside each other in CSS

Use the :focus-within pseudo-selector in CSS

Style form elements when they are empty

A mighty CSS linter that helps you avoid errors and enforce conventions.

Use Custom Properties Queries in CSS

Convert modern CSS into something browsers understand

A Less loader for webpack. Compiles Less to CSS.

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

Use the :any-link pseudo-class in CSS

The most popular front-end framework for developing responsive, mobile first projects on the web.

A pseudo-class for matching elements in a selector list

Use the color() function in CSS

Use the ic length unit

Enable support for case insensitive attribute matching in selectors

Use unquoted format on @font-face CSS definitions.

Use space and slash separated color notation in CSS

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

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

Use double-position gradients in CSS

Use the :dir pseudo-class in CSS

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

Use light and dark color schemes in all browsers

Use the overflow shorthand in CSS

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

Parses CSS inline style to JavaScript object (camelCased).

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

A Tailwind CSS plugin for creating beautiful animations.

Use sin(), cos(), tan(), acos(), atan(), and atan2() to compute trigonometric relationships

noop functions to help formatters and syntax highlighters recognize embedded code

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

A CSS property value parser for use with PostCSS

Hyphenates a camelcased CSS property name

Parse CSS media query lists.

Includes source files listed in HTML comments

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

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

Correctly declare progressive enhancements for CSS Custom Properties.

Provides some base functions needed by a css-select adapter so that you don't have to implement the whole thing.

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

Use hwb() color functions in CSS

SCSS parser for PostCSS

PostCSS plugin to fallback initial keyword.

Use cascade layers in CSS

Use round, rem and mod functions in CSS

Use two values display syntax for inner and outer display types.

Use env() variables in CSS

Use nested calc() expressions in CSS

Use text-decoration in it's shorthand form in CSS

List of standard and browser specific CSS functions.

CSS parser / stringifier

A combination of css reset and normalize (available in CSS, SCSS, Stylus and LESS)

css color parsing, manupulation and conversion

A collection of SCSS-specific rules for Stylelint

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

A JSON Object of css color names mapped to their hex value

Useful utility functions for CSS in JS solutions

Get accurate and well named css box model information about an Element 📦

A best-practices CSS foundation

Highly configurable, well-tested, JavaScript-based HTML minifier.

The Next Generation of CSS-in-JS.

Replacing symbols during the linking phase of ICSS

Regex for matching HSLA colors.

Regex for matching RGBA color strings.

List of vendor prefixes known to the web platform

Robust, expressive, and feature-rich CSS superset

A lib for generating Style Sheets with JavaScript.

The best regular expression (regex) for matching hex color values from string.

Smallest 5th gen CSS-in-JS library

parse shorthand css font strings"

Parser and showcase generator for JavaDoc-like comments in CSS, LESS, SASS etc.

A minimal CSS module shim

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

Reduce CSS calc() function to the maximum

A recommended babel preprocessing plugin for emotion, The Next Generation of CSS-in-JS.

Parse CSS Cascade Layer names.

Regex for RGB color strings.

JSS plugin for function value and rule syntax

Regex for matching HSL colors.

Indent-based CSS syntax for PostCSS

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

Resolve nested CSS selectors

https://github.com/deanm/css-color-parser-js

CSS vendor prefix detection and property feature testing.

PostCSS plugin to use CSS Modules everywhere

Use logical values in the resize property

Use the color-mix function in CSS

Colors of Google's Material Design made available to coders

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

Use interpolation methods in CSS gradient functions

selector parser for css

Use vb and vi length units in CSS

PostCSS syntax for parsing HTML (and HTML-like)

Gamut map css colors to fit display specific gamuts

Inlines img, script and link tags into the same file.

Use logical overscroll behavior properties and values in CSS

Parsers, transformers and tests for special value types, eg: %, hex codes etc.

A CSS-based selector parser for React Standard Tree (RST) traversal

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

Use logical overflow properties and values in CSS

Powerful and compliant CSS selector parser.

A collection of functions for manipulating CSS colors, inspired by SASS.

LESS parser for PostCSS

Standalone CSS Selector Finder and Parser.

A Sass parser for PostCSS, using gonzales-pe.

Use the gray() color function in CSS

Storybook Themes addon: Switch between themes from the toolbar

CSS value parser

Generate fallback values for content with alt text

A decent CSS parser

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

JavaScript image cropper.

PostCSS plugin to rebase or inline on url().

Use the random function in CSS

Merge keyframe and counter style identifiers.

Converts CSS values from one unit to another

Inject style tag to document head.

Plugin framework for CSS preprocessing

Discard unused counter styles, keyframes and fonts.

Raw browser/feature support data from caniuse.com

Rework declaration visitor utility

PostCSS plugin for Sass-like variables

Reduce z-index values with PostCSS.

Reduce custom identifiers with PostCSS.

Framework for transforming cascading style sheets (CSS) from left-to-right (LTR) to right-to-left (RTL)

Media queries in react for responsive design

The Next Generation of CSS-in-JS.

Compile and package Angular libraries in Angular Package Format (APF)

Use sign and abs functions in CSS

Parser and generator for CSS color strings

CSS parser

The Next Generation of CSS-in-JS.

Jest matcher for image comparisons. Most commonly used for visual regression testing.

Turns off all rules that are unnecessary or might conflict with Prettier.

Live CSS Reload & Browser Syncing

Remove unused css selectors

Style once, use everywhere. A build system for creating cross-platform styles.

Color conversion and manipulation with CSS string support

Self-host the Roboto font in a neatly bundled NPM package.

A CSS3-compliant JavaScript selector engine.

Styled System for the `css` prop

Zoom and pan html elements in easy way

Mix any number of colors with the color-mix function in CSS

Extract and inline critical css with emotion for server side rendering.

A PostCSS plugin for conditional comments

PostCSS helpers to throw or output GNU style messages

Map color names to HEX color values.

PostCSS plugin for mixins

Self-host the Inter font in a neatly bundled NPM package.

hast utility for `querySelector`, `querySelectorAll`, and `matches`

Convert color string (or parseable argument) to RGBA array

CSS modules support for TypeScript

Turn a CSS color into its smallest representation.

create matching selectors from css for your very own nested object hierarchy

Remove comments

Styled utilities for PrimeUI Libraries

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

A JavaScript plugin for entering and validating international telephone numbers