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THE FIRST COLLECTIONAn unofficial, open-source Codex-first Agent Skills library with 80 curated skills for premium frontend, website, motion, accessibility, QA, and reliable agent workflows. Includes adapters for Claude Code, Cursor, and Gemini CLI, plus benchmarks and examples.
Stisla is an open-source component library whose components share a constrained set of design tokens for color, spacing, radius, and typography. The README points to stisla.dev for documentation, live demos, and downloadable templates; the project is MIT licensed.
Franken UI (franken-ui/ui) is described as an HTML-first UI component library built on UIkit 3, extended with LitElement and inspired by shadcn/ui. Its README now only announces a move to 0build, so documentation lives elsewhere.
A Django-based open-source website project for Christ College of Engineering (CCE), India, serving as an informational portal for the institute.
A Svelte 5 UI component library inspired by Vercel's Geist, aimed at helping developers build cohesive and consistent web experiences. It ships with an online documentation site and is released under the MIT license.
Tailgrids is an open-source React UI component library built with Tailwind CSS, offering 100+ production-ready copy-paste components plus UI blocks and templates, with TypeScript support, accessibility, dark mode and a CLI installer.
A production-oriented Go + HTMX + templ micro-SaaS starter: Supabase auth and Postgres Row Level Security proven end-to-end, CI-enforced performance budgets and design tokens, plus a layered AI constitution and halt-on-violation gate for agent-assisted development.
TW Elements is an MIT-licensed component library for Tailwind CSS, offering 500+ interactive UI components and 117+ design blocks with dark mode support, theming options, and quick installation for personal and commercial use.
Open Video Downloader is a cross-platform desktop application providing a graphical user interface for yt-dlp. It allows users to download video, audio, subtitles, and metadata from various websites on Windows, macOS, and Linux.
Twin.macro is a Babel macro that brings Tailwind CSS utility classes to CSS-in-JS workflows, converting tw, css, styled, and theme usages into CSS objects at build time. It supports emotion, styled-components, solid-styled-components, stitches, and goober, with setup examples for Vite, Next.js, Gatsby, Storybook, and more.
UPORTAL is an open-source self-hosted platform for email tracking, link tracking, and controlled publication management, featuring a Thunderbird add-on, hosted Markdown pages, file download tracking, and unified analytics.
Flowbite is an open-source UI component library built on Tailwind CSS, offering interactive components like modals, dropdowns and datepickers driven by data attributes, with vanilla JS APIs, TypeScript types, RTL support and bindings for React, Vue, Svelte and Angular.
designlang is a Playwright-based CLI that reads a website's live DOM and extracts its design system: DTCG tokens, Tailwind config, Figma variables, shadcn theme, component anatomy, motion tokens, brand voice, WCAG contrast audits, and multi-platform emitters, plus MCP server and Chrome extension.
RetroUI is a retro-styled Tailwind CSS component library that provides NeoBrutalism-inspired UI elements for building bold, modern web applications.
Welcome UI is the customizable design system open-sourced by Welcome to the Jungle (@wttj). Built with React, TypeScript, Tailwind CSS and Ariakit, it collects the core components needed to build a delightful web application, with detailed documentation in the library README.
brandmd is a CLI that extracts a website's design system into a spec-valid DESIGN.md passing the official @google/design.md linter, giving Claude Code, Cursor and other coding agents brand context before they write UI. Runs locally with no API key by default.
daisyUI is a free and open-source component library for Tailwind CSS. It offers pre-designed, customizable UI components that can be used directly in HTML. The project is popular and includes extensive documentation, a component gallery, and community support.
React Bits is an open-source library of 165+ animated, interactive React components for building visually striking websites. It includes text animations, backgrounds, UI elements, and free creative tools.
Marigold is a React implementation of the Marigold Design System, built on react-aria and Tailwind CSS. The monorepo ships component and theme packages, a Storybook workspace, a Next.js documentation site, Vitest tests and CI-driven releases via Changesets.
Design Oracle analyzes a website with Playwright and extracts its design system—colors, typography, spacing, components and UX patterns—then exports Tailwind v4 config, React JSX, JSON design tokens or a DESIGN.md report. It runs standalone or as an MCP server for AI agents.
