Open source css projects

JavaScript animation engine

Prettier is an opinionated code formatter.

The zero configuration build tool for the web. 📦🚀

🌼 🌼 🌼 🌼 🌼  The most popular, free and open-source Tailwind CSS component library

Tabler is free and open-source HTML Dashboard UI Kit built on Bootstrap

An extremely fast bundler for the web

一套遵循浏览器原生态开发模式的 Web UI 组件库。

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

Open-source UI component library and front-end development framework based on Tailwind CSS

Important! A new UI Kit version for Bootstrap 5 is available. Access the latest free version via the link below.

The open-source alternative to Webflow, Framer and WordPress. Agentic self-hosted visual CMS outputting clean static pages. Users, roles, plugins, content, data

An extremely fast CSS parser, transformer, bundler, and minifier written in Rust.

Open source CSS framework for data visualization.

Pixel art animation and drawing web app powered by React

Programmatic video for coding agents — HTML to video on your laptop. Turn HTML, CSS & data into real MP4s with pluggable render engines, 21 templates, AI soundt

An open source icons library with 1600+ icons, supporting React, React Native, Flutter, Vue, Figma, and Framer.

Extract any website's complete design system with one command. DTCG tokens, semantic+primitive+composite, MCP server for Claude Code/Cursor/Windsurf, multi-plat

tailwindcss-motion is a Tailwind CSS Plugin made at RomboHQ. It’s a simple, yet powerful, animation library with a simple syntax.

Create your own link-in-bio page with 100+ branded buttons

The text editor designed to make coding as simple and fun as playing a video game

Guia de Front-end: trilhas, cursos, livros, canais, ferramentas e comunidades para você entrar e evoluir na área.

Convert any image to pure CSS. Recreates images using only box-shadows.

The first truly composable CSS animation library. Built for Vue, React, SCSS, and CSS, AnimXYZ will bring your website to life.

180 free CSS3, Figma, Sketch & PSD gradients — plus a JSON dataset for design tools, generators, and AI agents.

Guia de Back-end: trilhas, cursos, livros, canais, ferramentas e comunidades para você entrar e evoluir na área.

Agent-native visual CMS. Build sites with Claude/Codex/whatever, manage them visually.

Headless Chromium-based web performance metrics collector and monitoring tool

Lean mean Neovim machine, carefully crafted with :heart: Use with latest Neovim.

Python binding to Modest and Lexbor engines. Fast HTML5 parser with CSS selectors for Python.

🎈 Automate your WordPress development workflow.

⚛️ @uiwjs A high quality UI Toolkit, A Component Library for React 16+.

Pretty CSS analytics on the CLI

Easily create data-driven web UI's for Node-RED. Single- & Multi-page. Multiple UI's. Work with existing web development workflows or mix and match with no-code

:diamonds: A modular and customizable UI library based on Material Design and Vue

Distraction-free note-taking with powerful features