JSPM

Go minifiers for web formats

(almost) all CSS minifiers available for node.js

A CSS utility library for JS

PostCSS plugin to minify CSS using CSSO

A stylelint plugin that checks for a file header.

Tool for transforming styles with JS plugins

A JavaScript text diff implementation.

Strict TypeScript and Flow types for style based on MDN data

a CSS selector compiler/engine

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

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

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

Fast CSS Selectors API Engine

Color conversion and manipulation with CSS string support

Parser and generator for CSS color strings

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

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

A CSS Modules transform to make local scope the default

A well-tested CSS minifier

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

A pure JavaScript implementation of Sass.

PostCSS plugin to import CSS files

A react component toolset for managing animations

A modern CSS parser and stringifier with TypeScript support

css loader module for webpack

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

tiny modular DOM lib for ie9+

A simple utility for conditionally joining classNames together

PostCSS loader for webpack

Ensure CSS selectors are unique.

Generate a hex color from the given text

Merge longhand properties into shorthand with PostCSS.

extracts CSS into separate files

PostCSS plugin to unwrap nested rules like how Sass does it

Full CSS support for JSX without compromises

CSS minifier with structural optimisations

Solve CSS math expressions

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

Optimise inline SVG with PostCSS.

ICSS utils for postcss ast

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

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

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

Discard comments in your CSS files with PostCSS.

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

Color your terminal using CSS/hex color codes

Minify gradient parameters with PostCSS.

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

Normalize wrapping quotes for CSS string literals.

Merge Tailwind CSS classes without style conflicts

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

Color helpers to ease transformation between formats, gamut, etc

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

Parse CSS color values

Discard duplicate rules in your CSS files with PostCSS.

Add necessary or remove extra charset with PostCSS

PostCSS plugin to reduce calc()

Tokenize CSS

Detect/remove browser hacks from CSS files.

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

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

Minify font declarations with PostCSS

An inline style parser.

Trim whitespace inside and around CSS rules & declarations.

Discard empty rules and values with PostCSS.

Minify colors in your CSS files with PostCSS.

Ensure values are ordered consistently in your CSS.

Just create a single stylesheet...

Merge CSS rules with PostCSS.

Minify selectors with PostCSS.

List of known CSS properties

Minify at-rule params with PostCSS

Normalize URLs with PostCSS

Parse CSS inline style to JavaScript object.

Fault-tolerant CSS parser for PostCSS

Normalize keyword values for position into length values.

Sorts CSS declarations fast and automatically in a certain order.

Determine selector specificity with postcss-selector-parser

CSS minimizer (minifier) plugin for Webpack

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

hast utility to create an element from a simple CSS selector

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

Class Variance Authority 🧬

Leaner CSS

Use Custom Media Queries in CSS

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.

Use Custom Properties Queries in CSS

Use the :any-link pseudo-class 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

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

A list of all CSS color keywords.

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

Use unquoted format on @font-face CSS definitions.

Use Custom Selectors in CSS

Use the rebeccapurple color keyword in CSS

Use the :focus-within pseudo-selector in CSS

A Tailwind CSS plugin for creating beautiful animations.

Style form elements when they are empty

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

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

Parse CSS media query lists.

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

Use the :focus-visible pseudo-selector in CSS

Style elements relative to other elements in CSS

A pseudo-class for matching elements in a selector list

Correctly declare progressive enhancements for CSS Custom Properties.

Use the color() function in CSS

Use the ic length unit

Convert modern CSS into something browsers understand

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

Nest rules inside each other in CSS

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

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

Strip line and/or block comments from a string. Blazing fast, and works with JavaScript, Sass, CSS, Less.js, and a number of other languages.

Use round, rem and mod functions in CSS

Use cascade layers in CSS

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

Use hwb() color functions in CSS

SCSS parser for PostCSS

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

A Less loader for webpack. Compiles Less to CSS.

Use env() variables in CSS

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

Use nested calc() expressions in CSS

Parses CSS inline style to JavaScript object (camelCased).

Use the :dir pseudo-class in CSS

Enable support for case insensitive attribute matching in selectors

Use the overflow shorthand in CSS

Use space and slash separated color notation in CSS

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

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

Use light and dark color schemes in all browsers

List of standard and browser specific CSS functions.

CSS parser / stringifier

Hyphenates a camelcased CSS property name

A CSS property value parser for use with PostCSS

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

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

PostCSS plugin to fallback initial keyword.

A best-practices CSS foundation

Useful utility functions for CSS in JS solutions

css color parsing, manupulation and conversion

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

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

Sanitize untrusted CSS with a configuration specified by a Whitelist. 根据白名单过滤CSS

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

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

Replacing symbols during the linking phase of ICSS

A collection of SCSS-specific rules for Stylelint

Search CSS(-like) strings

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

A cross-browser CSS foundation

Regex for matching HSLA colors.

Regex for matching RGBA color strings.

A CLI tool to minify JSON/C, HTML and CSS.

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

The Next Generation of CSS-in-JS.

List of vendor prefixes known to the web platform

A lib for generating Style Sheets with JavaScript.

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

Regex for RGB color strings.

Regex for matching HSL colors.

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

CSS vendor prefix detection and property feature testing.

Robust, expressive, and feature-rich CSS superset

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

parse shorthand css font strings"

Reduce CSS calc() function to the maximum

Parse CSS Cascade Layer names.

Smallest 5th gen CSS-in-JS library

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

A minimal CSS module shim

Use the color-mix function in CSS

A collection of order related linting rules for Stylelint.

Use vb and vi length units in CSS

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

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

PostCSS plugin to use CSS Modules everywhere

JSS plugin for function value and rule syntax

Resolve nested CSS selectors

Use logical values in the resize property

Indent-based CSS syntax for PostCSS

Use logical overflow properties and values in CSS

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

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

Use interpolation methods in CSS gradient functions

PostCSS syntax for parsing HTML (and HTML-like)

Gamut map css colors to fit display specific gamuts

Powerful and compliant CSS selector parser.

Use logical overscroll behavior properties and values in CSS

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

Colors of Google's Material Design made available to coders

Standalone CSS Selector Finder and Parser.

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

LESS parser for PostCSS

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

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

CSS value parser

A decent CSS parser

Storybook Themes addon: Switch between themes from the toolbar

A Sass parser for PostCSS, using gonzales-pe.

Code obfuscator CLI that protects your code regardless of the programming language or framework.

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

PostCSS plugin to rebase or inline on url().

Use the random function in CSS

JavaScript image cropper.

Converts CSS values from one unit to another

Use the gray() color function in CSS

CSS dictionary for cspell.

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

Generate fallback values for content with alt text

Reduce z-index values with PostCSS.

Reduce custom identifiers with PostCSS.

Media queries in react for responsive design

Use sign and abs functions in CSS

Merge keyframe and counter style identifiers.

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

Inject style tag to document head.

PostCSS plugin for Sass-like variables

Discard unused counter styles, keyframes and fonts.

Color conversion and manipulation with CSS string support

Raw browser/feature support data from caniuse.com

The Next Generation of CSS-in-JS.

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

CSS parser

Plugin framework for CSS preprocessing

Rework declaration visitor utility

The Next Generation of CSS-in-JS.

Parser and generator for CSS color strings

Live CSS Reload & Browser Syncing

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

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

Convert color string (or parseable argument) to RGBA array

PostCSS helpers to throw or output GNU style messages

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

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

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

Remove unused css selectors

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

A CSS3-compliant JavaScript selector engine.

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

Styled System for the `css` prop

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

Map color names to HEX color values.

CSS modules support for TypeScript