Open-source css-framework software
806 open-source libraries, tools and applications tagged css-framework, ranked by how closely css-framework is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
806 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| connors/photon Photon is a CSS UI toolkit for building beautiful desktop applications with Electron using simple HTML and CSS. It ships compiled CSS, Enty… | 53 | 10107 | maintenance |
| themeselection/flyonui FlyonUI is a free and open-source Tailwind CSS component library that combines semantic class names with interactive headless JavaScript pl… | 55 | 2526 | active |
| Akifyss/obsidian-border A clean and highly customizable CSS theme for Obsidian.md with features like card layout, auto-hiding sidebars, and multiple visual presets… | 76 | 2513 | active |
| ingram-projects/animxyz AnimXYZ is a composable CSS animation library that lets developers describe animations declaratively with utility attributes and CSS variab… | 95 | 2499 | stable |
| javierbyte/img2css A web tool that converts any image into pure CSS, recreating it as a matrix of box-shadows on a single pixel div or as a base64-embedded im… | 64 | 2499 | active |
| StartBootstrap/startbootstrap-sb-admin-2 SB Admin 2 is a free, open source Bootstrap 4 admin dashboard theme from Start Bootstrap, distributed as HTML/SCSS template files. It ships… | 32 | 9864 | maintenance |
| PurifyCSS PurifyCSS is a JavaScript library and CLI that statically analyzes content (HTML, JS, PHP, etc.) to detect which CSS selectors are actually… | 23 | 9837 | maintenance |
| vuematerial/vue-material Vue Material is a set of ready-to-use Vue.js components built exactly to Google's Material Design specifications. It provides a lightweight… | 23 | 9824 | maintenance |
| khang-nd/7.css 7.css is a JS-independent, tree-shakeable CSS framework that styles semantic HTML to faithfully recreate the Windows 7 (Aero) user interfac… | 78 | 2458 | active |
| webtui/webtui WebTUI is a modular CSS library that recreates the look and feel of terminal user interfaces in the browser. It ships as an npm package wit… | 80 | 2447 | active |
| mrmrs/colors colors.css is a tiny CSS library (~900 bytes) providing better default color classes for text, backgrounds, borders, and SVG fills/strokes.… | 23 | 9415 | maintenance |
| UnCSS UnCSS is a Node.js tool and CLI that removes unused CSS selectors from stylesheets by loading HTML pages in jsdom, executing JavaScript, an… | 23 | 9399 | maintenance |
| jaredh159/tailwind-react-native-classnames A TypeScript library providing a Tailwind CSS-style tagged template API for styling React Native apps. It converts Tailwind utility classes… | 55 | 2378 | active |
| chakra-ui/park-ui Park UI is a collection of beautifully designed, accessible UI components built on Ark UI (headless components) and Panda CSS, distributed … | 61 | 2372 | active |
| kristoferjoseph/flexboxgrid Flexbox Grid is a lightweight CSS grid system built on the CSS3 flex display property, providing responsive 12-column layouts with classes … | 32 | 9290 | maintenance |
| mdbootstrap/material-design-for-bootstrap Material Design for Bootstrap (MDB) is a UI kit that applies Google's Material Design to Bootstrap, offering 700+ components, templates, an… | 62 | 9248 | maintenance |
| elad2412/the-new-css-reset A lightweight CSS reset package that removes default user-agent styles from HTML elements using modern CSS features like `all: unset`, `rev… | 32 | 2336 | stable |
| mlaursen/react-md react-md is an accessible React component library implementing Material Design, styled with Sass/SCSS and written in TypeScript. It provide… | 92 | 2325 | active |
| vizia/vizia Vizia is a declarative, reactive desktop GUI framework for Rust, letting developers build cross-platform applications in pure Rust without … | 75 | 2316 | active |
| styled-components/xstyled xstyled is a utility-first CSS-in-JS framework for React, built on top of styled-components or Emotion. It lets you style components with p… | 84 | 2302 | active |
| uber/baseweb Base Web is a React component library implementing Uber's Base design system, providing modern, responsive, themeable UI components. It is … | 66 | 9009 | maintenance |
| Mokshit06/typewind Typewind is a typesafe, zero-runtime wrapper around Tailwind CSS that lets you write Tailwind classes as TypeScript expressions via a `tw` … | 53 | 2290 | active |
| mertJF/tailblocks A collection of 60+ ready-to-use Tailwind CSS HTML blocks with responsive layouts, dark mode, and color variations. Users browse blocks on … | 32 | 8885 | maintenance |
| 5t3ph/stylestage Style Stage is a community-driven CSS showcase site (built with 11ty) where contributors restyle a fixed, semantic HTML page by submitting … | 57 | 2228 | active |
| Teradata/covalent Covalent is Teradata's open-source design system providing a reusable component library for building consistent, branded web experiences. I… | 92 | 2223 | active |
| kognise/water.css Water.css is a tiny, classless CSS framework that styles semantic HTML with no markup changes—just add a stylesheet link. It supports autom… | 32 | 8653 | maintenance |
| lscambo13/ElegantFin ElegantFin is a custom CSS theme for Jellyfin inspired by Jellyseerr's design, providing a modern, polished UI/UX overhaul. It works across… | 80 | 2212 | active |
| React Toolbox React Toolbox is a set of React components implementing Google's Material Design specification, styled with CSS Modules and PostCSS. It int… | 23 | 8608 | maintenance |
| miniMAC/magic Magic is a lightweight CSS3 animation library (about 3.1 kB gzipped) providing dozens of special-effect animation classes like puffIn, twis… | 23 | 8603 | maintenance |
| Berry Berry is a free, MIT-licensed React admin dashboard template built with Material UI (MUI v7) and React 19. It provides prebuilt, responsive… | 78 | 2190 | active |
| StartBootstrap/startbootstrap-resume A free, open-source Bootstrap resume/CV theme by Start Bootstrap featuring a fixed sidebar layout with content sections. It ships prebuilt … | 32 | 2181 | stable |
| ecklf/tailwindcss-radix A Tailwind CSS plugin that generates utilities and variants for styling Radix UI component state via data attributes. It provides prefixed … | 37 | 2162 | active |
| cuth/postcss-pxtorem A PostCSS plugin that converts pixel (px) units in CSS to rem (root em) units. It is configurable via options such as root value, property … | 23 | 2154 | stable |
| brittanychiang.com The fourth iteration of Brittany Chiang's personal portfolio website, built with Gatsby and styled-components and hosted on Netlify. It is … | 32 | 8284 | maintenance |
| jsxstyle/jsxstyle jsxstyle is an inline style system for JSX that lets you style components via props on special components like Row, Col, and Block. Styles … | 89 | 2112 | active |
| filipelinhares/ress A modern CSS reset built on top of Normalize.css that provides a solid baseline stylesheet for web projects. It normalizes browser defaults… | 72 | 2081 | stable |
| todc/todc-bootstrap TODC Bootstrap is a Google-styled theme for the Bootstrap CSS framework, recreating the look of Google's UI (Gmail, Docs, Calendar) on Boot… | 66 | 2076 | active |
| francoismassart/eslint-plugin-tailwindcss An ESLint plugin that enforces best practices and consistency for Tailwind CSS usage, supporting Tailwind CSS v4. It provides rules for cla… | 93 | 2072 | active |
| Aris-t2/CustomCSSforFx A collection of custom CSS tweaks (userChrome.css/userContent.css) for customizing the Firefox browser UI. It provides prebuilt stylesheets… | 48 | 2072 | active |
| StartBootstrap/startbootstrap-creative A free, open-source one-page HTML theme for creatives built on Bootstrap 4 by Start Bootstrap. It ships prebuilt dist files plus a Pug/SCSS… | 62 | 2069 | active |
| atlassian-labs/compiled Compiled is a compile-time CSS-in-JS library for React that lets you style components with a familiar css prop, styled API, and ClassNames … | 96 | 2055 | active |
| Rebass UI Library Rebass is a library of React primitive UI components built on top of Styled System, providing themeable, stateless building blocks for layo… | 23 | 7895 | maintenance |
| styled-system/styled-system Styled System is a JavaScript library that provides utility style props for rapidly building UI components with CSS-in-JS libraries like st… | 23 | 7862 | maintenance |
| ekmas/cs16.css cs16.css is a CSS library that recreates the Counter Strike 1.6 game UI as reusable web components. It provides styled buttons, inputs, che… | 21 | 2029 | active |
| argyleink/transition.css A drop-in CSS library providing 46 pre-built clip-path based transitions and animations via simple HTML attributes. It ships as a single st… | 31 | 2023 | stable |
| ajusa/lit lit is an extremely small (395 bytes gzipped) responsive CSS micro-framework offering a 12-column grid, typography, buttons, cards, inputs,… | 52 | 2012 | stable |
| sass-mq/sass-mq Sass MQ is a Sass mixin library for composing responsive media queries with named breakpoints in an elegant, readable way. It converts px/e… | 79 | 1985 | stable |
| leoMirandaa/shadcn-landing-page A free, open-source landing page template built with Shadcn/UI, React, TypeScript, and Tailwind CSS. It ships pre-built sections like hero,… | 26 | 1982 | active |
| StartBootstrap/startbootstrap-simple-sidebar Simple Sidebar is a free, MIT-licensed off-canvas sidebar navigation HTML template built on Bootstrap 5 by Start Bootstrap. It ships as rea… | 32 | 1979 | stable |
| vinibiavatti1/TuiCss TuiCss is a CSS library for building web applications with text-based, ASCII-style interfaces inspired by MS-DOS programs and the Turbo Vis… | 59 | 1972 | active |
| themeselection/materio-mui-nextjs-admin-template-free Materio is a free, MIT-licensed admin dashboard template built on Next.js 14 (App Router), Material UI, Tailwind CSS, and TypeScript. It sh… | 52 | 1969 | active |
| muckSponge/MaterialFox MaterialFox is a Material Design-inspired userChrome.css theme that restyles the Firefox browser UI to resemble Google Chrome. It is instal… | 32 | 1961 | active |
| Modular Scale A Sass library that generates modular scales—proportionally related value lists—for sizing type and layout elements in web design. It provi… | 44 | 1958 | stable |
| master-co/css Master CSS is a virtual CSS language and framework that lets developers style HTML entirely through enhanced class-name syntax, with a runt… | 84 | 1949 | active |
| Untitled UI Untitled UI React is a large open-source collection of React components built with Tailwind CSS, React Aria, and TypeScript, designed to be… | 62 | 1947 | active |
| lowlighter/matcha matcha.css is a pure CSS, classless styling library that styles semantic HTML elements with a single stylesheet link, requiring no build st… | 30 | 1943 | active |
| tobe-fe-dalao/fast-vue3 An opinionated Vue 3 starter template combining Vite, TypeScript, Pinia, UnoCSS, ESLint/Prettier, auto-imports, and file-based routing for … | 76 | 1932 | active |
| oupala/apaxy Apaxy is a customisable CSS/JS theme that restyles Apache's mod_autoindex directory listings. It ships with mime-type icons, optional galle… | 32 | 1929 | active |
| shadcnstudio/shadcn-studio An open-source distribution of copy-and-paste shadcn/ui components, blocks, and templates built on Tailwind CSS with Radix UI and Base UI s… | 80 | 1916 | active |
| erikflowers/weather-icons A weather-themed icon font and CSS library with 222 icons covering weather, maritime, and meteorological symbols. It includes companion CSS… | 23 | 7175 | maintenance |
| BlackrockDigital/startbootstrap A collection of free, MIT-licensed Bootstrap 4 themes and HTML starter templates, including admin dashboards, landing pages, blogs, and por… | 23 | 7145 | maintenance |
| csswizardry/ct ct.css is a small diagnostic CSS stylesheet that visually exposes performance problems in a page's <head>, such as render-blocking scripts … | 73 | 1884 | active |
| yegor256/tacit Tacit is a classless CSS framework that styles plain, standards-compliant HTML5 pages without requiring any CSS classes. You include a sing… | 92 | 1882 | active |
| jonsuh/hamburgers A collection of CSS-animated hamburger menu icons with 30+ animation variants, distributed as plain CSS and a modular Sass library. It is f… | 23 | 7082 | maintenance |
| nuxt-modules/tailwindcss An official Nuxt module that integrates Tailwind CSS into Nuxt applications with zero configuration. It provides automatic setup, config vi… | 73 | 1868 | active |
| lukehaas/css-loaders A collection of minimal loading spinners built purely with CSS animations, each using a single HTML element. It provides visually appealing… | 32 | 7052 | maintenance |
| sonofmagic/weapp-tailwindcss weapp-tailwindcss is a cross-platform compiler and build integration layer that brings Tailwind CSS 4's utility-first workflow to Web/H5, W… | 95 | 1866 | active |
| kuma-ui/kuma-ui Kuma UI is a headless, utility-first React component library with zero-runtime CSS extraction, using a hybrid approach that statically extr… | 80 | 1864 | active |
| thesabbir/simple-line-icons A pack of simple, minimal line icons distributed as a web font with CSS, SASS, and LESS files. It is installable via npm, Bower, or CDN and… | 56 | 1862 | stable |
| dohliam/dropin-minimal-css A drop-in JavaScript switcher for previewing minimal, classless CSS frameworks on any HTML page. It lets developers cycle through boilerpla… | 32 | 1832 | active |
| MyIntervals/PHP-CSS-Parser A PHP library that parses CSS files into a manipulable data structure and can output the structure back as (optimized) CSS. It supports str… | 88 | 1828 | active |
| efemkay/obsidian-modular-css-layout A collection of modular CSS snippets for Obsidian.md that provide alternative layout options such as wide views, multi-column notes, and ga… | 23 | 1825 | active |
| thomasloven/lovelace-card-mod card-mod is a Home Assistant frontend plugin that lets users apply custom CSS styles to almost any Lovelace dashboard card. It is installed… | 81 | 1821 | active |
| pages-themes/minimal Minimal is a Jekyll theme designed for GitHub Pages sites, distributed as a Ruby gem and usable via jekyll-remote-theme. It provides a clea… | 23 | 1816 | stable |
| StartBootstrap/startbootstrap-clean-blog Clean Blog is a free, responsive blog theme for Bootstrap created by Start Bootstrap, featuring a blog homepage, about page, contact page, … | 32 | 1813 | stable |
| umicro/uView2.0 uView 2.0 is a Vue-based UI component framework for the uni-app ecosystem, fully compatible with nvue native rendering. It provides 60+ mul… | 23 | 1789 | active |
| barvian/fluid-tailwind A Tailwind CSS plugin that lets utilities scale smoothly between breakpoints using CSS clamp(). It reduces the amount of per-breakpoint res… | 18 | 1781 | active |
| thysultan/stylis Stylis is a lightweight CSS preprocessor library written in JavaScript that supports nesting, selector namespacing, vendor prefixing, and m… | 64 | 1769 | active |
| edwardtufte/tufte-css Tufte CSS is a CSS-only stylesheet that styles HTML web articles in the distinctive style of Edward Tufte's handouts, featuring careful typ… | 69 | 6576 | maintenance |
| timonweb/django-tailwind A Django package that integrates the Tailwind CSS framework into Django projects via a management-command-driven theme app. It supports bot… | 68 | 1754 | active |
| layoutit/layoutit-grid Layoutit Grid is an interactive web-based CSS Grid layout generator that lets users visually draw page layouts and export the resulting HTM… | 32 | 1747 | stable |
| datguypiko/Firefox-Mod-Blur A modular Firefox userChrome CSS theme that provides a dark, compact, blurred browser interface with customizable window buttons, bookmarks… | 98 | 1744 | active |
| Windi CSS Windi CSS is a next-generation utility-first CSS framework, fully compatible with Tailwind CSS v2, that scans your templates and generates … | 23 | 6509 | maintenance |
| vineethtrv/css-loader A collection of pure CSS loaders and spinners for indicating loading states in websites and apps. Each loader is built on a single HTML tag… | 69 | 1735 | stable |
| seek-oss/capsize Capsize is a TypeScript library that uses font metadata to make CSS text sizing and layout predictable, sizing text by cap height and trimm… | 99 | 1732 | active |
| Zarm UI Component Library Zarm is an enterprise-grade mobile UI component library built on React, developed by ZhongAn Technology. It provides a set of mobile-optimi… | 92 | 1727 | active |
| uni-stack/uniwind Uniwind is a Tailwind CSS v4 binding library for React Native that lets you style components with className props, computing styles at buil… | 84 | 1725 | active |
| KiKaraage/ArcWTF ArcWTF is a userChrome.css theme that recreates the Arc Browser look and feel inside Firefox, using Firefox's native vertical tabs and side… | 37 | 1719 | active |
| primary-theme/obsidian Primary is a community theme for Obsidian.md that provides a cozy, playful yet productive visual style with light and dark modes. It won Be… | 23 | 1718 | active |
| mblode/marx Marx is a classless CSS framework and reset that styles plain semantic HTML with a single stylesheet link, requiring no class names, build … | 95 | 1710 | active |
| MohammadYounes/rtlcss RTLCSS is a Node.js framework and PostCSS plugin that automatically converts Left-To-Right (LTR) CSS stylesheets into their Right-To-Left (… | 23 | 1705 | active |
| webslides/WebSlides WebSlides is an open-source HTML/CSS/JavaScript framework for building beautiful slide presentations, landings, and longform stories with s… | 23 | 6324 | maintenance |
| adriankarlen/textfox Textfox is a Firefox theme built with userChrome CSS that gives the browser a minimal, TUI-inspired look with vertical or horizontal tabs. … | 66 | 1697 | active |
| CSS Blocks CSS Blocks is a component-oriented CSS authoring system from LinkedIn that compiles to highly optimized stylesheets using build-time static… | 23 | 6279 | maintenance |
| ankit/stylebot Stylebot is an open-source browser extension for Chrome, Firefox, and Edge that lets users instantly change the appearance of any webpage b… | 99 | 1684 | active |
| radix-ui/colors Radix Colors is an accessible, carefully designed color system for user interfaces, distributed as CSS files and JS packages. It provides 1… | 54 | 1676 | stable |
| StartBootstrap/startbootstrap-landing-page A free, responsive, multipurpose landing page template built on Bootstrap by Start Bootstrap. It ships prebuilt HTML/CSS/JS in a dist folde… | 32 | 1674 | stable |
| adminkit/adminkit AdminKit is a free, open-source HTML admin dashboard template built on Bootstrap 5, featuring hundreds of UI components, forms, tables, cha… | 82 | 1656 | active |
| jolaleye/cssfx CSSFX is a web application showcasing a collection of beautiful, click-to-copy CSS effects like shadows, transitions, and animations. It le… | 10 | 6114 | maintenance |
| GTRONICK/QSS A collection of QT Style Sheet (QSS) templates providing ready-made themes like Ubuntu, ElegantDark, MaterialDark, AMOLED, MacOS, and more.… | 73 | 1647 | active |