Components GitHub Repositories (2026) · Open Source Tools

Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.

A set of over 6200 free MIT-licensed high-quality SVG icons for you to use in your web projects.

UI for AI agents. React components for what agents do – agent trees, tool calls, traces, handoffs and approvals – and for the rest of your app. One file each, install with shadcn or via MCP. Free and open source.

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

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

Unstyled UI components for building accessible web apps and design systems. From the creators of Radix, Floating UI, and Material UI.

Arc Library: free, open source React components with calm motion. Copy the code or install with the shadcn CLI.

A React-based UI toolkit for the web

The React Framework

Unstyled, accessible UI components for your design System. Works in React, Vue, Solid, and Svelte.

⚛️ Fast 3kB React alternative with the same modern API. Components & Virtual DOM.

🚀 Beautiful, fast and modern React UI library. (Previously NextUI)

Beautifully designed terminal UI components for Ratatui apps

Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications

A pixel-perfect dev portfolio and shadcn registry.

F´ - A flight software and embedded systems framework

Blazor Component Library based on Material Design principles. Do more with Blazor, utilizing CSS and keeping JavaScript to a bare minimum.

The design system studio for humans and agents.

The Intuitive Vue UI Library powered by Reka UI & Tailwind CSS.

material is a library of web components that helps build beautiful and accessible web applications. It uses Material 3, the latest version of Google's open-source design system.