#css

Tailwind CSS is a utility-first CSS framework that lets you build custom designs directly in your markup by composing low-level utility classes instead of writing custom CSS. It generates only the styles you use via a build step, keeping output small.

A massive, community-curated awesome-list of free and freemium design assets and tools for developers — covering UI graphics, fonts, color tools, icons, stock media, CSS/JS libraries, design systems, and AI design tools. It's a categorized link directory rather than a software library.

Bulma is a free, open-source CSS framework based on Flexbox that provides ready-to-use, responsive UI components and a grid system without requiring any JavaScript. It's distributed as a single CSS file or as customizable Sass source.

daisyUI is a component library for Tailwind CSS that adds semantic class names (like btn, card, modal) and themeable components on top of Tailwind's utility classes, reducing markup verbosity while staying framework-agnostic.

esbuild is a high-performance JavaScript/TypeScript/CSS bundler and minifier written in Go, designed to be 10-100x faster than traditional web build tools. It offers a unified CLI, JS, and Go API with built-in support for ESM/CommonJS, JSX, tree shaking, source maps, and plugins.

Textual is a Python framework for building interactive applications with a CSS-styled, widget-based, reactive API that run in the terminal and can also be served to a web browser. It brings web-style layout and theming to TUIs while staying async-optional.

PostCSS is a tool for transforming CSS with JavaScript plugins. It parses CSS into an abstract syntax tree, lets plugins inspect and mutate it, then stringifies the result — powering everything from autoprefixing to future-syntax polyfills and minification.

Primer CSS is the SCSS/Sass implementation of GitHub's Primer Design System, providing utility classes and component styles distributed via npm. It's now in maintenance ("KTLO") mode, with GitHub steering new work toward primer/react and primer/view_components.

98.css is a JavaScript-free CSS library that styles semantic HTML to look like the Windows 98 user interface, providing nostalgic recreations of classic widgets like windows, title bars, buttons, and form controls.

Milligram is an ultra-lightweight (~2kb gzipped) CSS framework that provides minimal default styling for typography, forms, buttons, grids, and tables. It aims to be a clean, low-opinion starting point rather than a full UI component library.

Vue Material is a lightweight Vue.js component library that implements Google's Material Design specification, offering themeable, on-demand-importable UI components like buttons, tabs, dialogs, and form controls.

A curated "awesome" list cataloging CSS frameworks, organized into categories like classless, lightweight, general-purpose, material design, utility-based, and specialized/retro themes. It's a reference index rather than a code library, helping developers discover and compare frameworks for styling web projects.

PrimeReact is a comprehensive UI component library for React, offering 90+ pre-built, themeable components ranging from form inputs and data tables to charts and overlays. It supports both styled (pre-skinned themes like Material and Bootstrap) and unstyled modes for full customization.

Charts.css is a dependency-free CSS framework for data visualization that turns semantic HTML tables into charts and graphs using utility classes and CSS variables. Instead of JavaScript or SVG/canvas rendering, it styles markup directly so charts are accessible, lightweight, and customizable with plain CSS.

Windi CSS is a utility-first CSS framework that generates styles on demand by scanning your HTML/CSS, offering Tailwind-compatible utilities with faster build times and HMR. The project has been officially sunset and is no longer recommended for new projects.