Open source. Open possibilities.

React Suite provides React UI components for building web applications. Supports major browsers and server-side rendering with Next.js. Includes installation via package managers and framework-specific guides.

Vant is a lightweight, customizable Vue UI component library for mobile web apps, offering 80+ components with zero third-party dependencies, TypeScript support, and compatibility with Vue 2/3, Nuxt, SSR, dark mode and i18n.

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.

Chakra UI is an open-source React component system for building accessible web apps and SaaS products quickly. It ships installable component packages, supports Next.js RSC, and is MIT licensed.

Lightswind UI is an English-documented React component library distributed as source code via a CLI. It provides 160+ animated, accessible components and an MCP server for AI coding tools, with MIT-licensed core components and optional Pro content.

Ant Design is an enterprise-class UI design language and React component library written in TypeScript, offering ready-to-use quality components, design resources, theming and internationalization.

Vuetify is an MIT-licensed Vue UI component framework offering handcrafted, responsive components with theming, SASS customization, Vite tree-shaking and 42+ language support.

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.

Varlet is a Vue 3 component library based on Material Design 2 and 3, offering 70+ general-purpose components that work on both mobile and desktop, with theming, internationalization, SSR and TypeScript support.

A Svelte component library implementing IBM's open source Carbon Design System, with 90+ accessible, fully typed components, five built-in themes, and companion icon, pictogram and chart packages.

RetroUI is a retro-styled Tailwind CSS component library that provides NeoBrutalism-inspired UI elements for building bold, modern web applications.

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.

Webcore UI is an open-source component library for Astro, Svelte, and React. It uses Sass for styling and offers customizable components, blocks, templates, a CLI, themes, and CSS variables.

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.

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.

cube-ui is a mobile UI component library implemented in Vue, open-sourced by DiDi. It supports full or modular component registration, ships with documentation, an example app, and a vue-cli based template for scaffolding new projects.