Open source. Open possibilities.

Magic UI is an open-source UI library providing animated components and effects designed for design engineers to copy and paste into their applications.

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 free, browser-based database entity relationship diagram (ERD) editor and SQL generator.

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.

Cult UI is an MIT-licensed collection of accessible, customizable components styled with Tailwind CSS and compatible with shadcn. It emphasizes copy-and-paste integration and also bundles AI agent patterns, premium blocks, and starter templates.

Skeleton is an adaptive design system built on Tailwind CSS. It provides turnkey components for popular web frameworks, along with documentation, a theme generator, and community channels.

Nuxt UI is a Vue and Nuxt component library built on Reka UI, Tailwind CSS and Tailwind Variants, offering accessible, themeable interface components plus official starter, landing, docs, SaaS, dashboard, chat and other templates under the MIT license.

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.

Tremor offers 35+ customizable, accessible React components for building charts and dashboards. Built on Tailwind CSS and Radix UI, the components are designed for copy-and-paste use, with installation documentation and an Apache 2.0 license.

UI UX Pro Max is an open-source AI skill for Claude Code, Cursor, and other AI coding assistants. It provides design intelligence including 79 searchable UI styles, 192 industry-specific reasoning rules, 192 color palettes, 74 font pairings, and stack-specific UI/UX guidelines across 22 tech frameworks.

Oruga is a lightweight Vue.js 3 UI component library with no CSS framework dependency. It provides customizable components, tree-shaking, themes, and class-mapping configuration for integrating Tailwind, Bulma, Bootstrap, or custom styles.

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.

Better Design is an open-source MCP server and shadcn/ui registry that supplies AI coding agents with design systems, semantic CSS tokens, component overrides, UI principles, icon matching, and WCAG-oriented review rules. It includes 31 themes and connects to Claude Code, Cursor, VS Code/GitHub Copilot, Claude Desktop, and other MCP clients.

A hand-drawn React component library with a sketchy notebook aesthetic: 20 TypeScript components, hand-drawn SVG borders, paper textures, per-component theme props for colors and typography, tree-shaking support, and a bundle the README reports as under 70 kB gzipped.

shadcn-svelte is a community-led Svelte port of shadcn/ui, providing accessible, customizable UI components that can be copied and pasted into Svelte apps to build custom component libraries.

Morphous is a static TanStack Start catalog of nature-inspired design systems. It publishes motif assets, light and dark design-system boards, recorded prompts, and shadcn/tweakcn-compatible theme exports, with catalog validation, preview generation, tests, and GitHub Pages deployment.

shadcn/ui is an open-source collection of customizable, accessible UI components distributed through a code distribution platform, intended as a starting point for building your own component library and compatible with popular frameworks.

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.

Appica UI is an MIT-licensed monorepo of themeable UI components for modern web apps. It currently ships @appica/ui-react, offering 70+ accessible components with polished interactions, dark mode and full theming, plus a matching Figma design file.

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.