UI Components GitHub Repositories (2026) · Open Source Tools

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.

Build and share delightful machine learning apps, all in Python. 🌟 Star to support our work!

Component layer for AI agents: implementation-aware contracts for building project-native interface components.

Typescript/React Library for AI Chat 💬🚀

A collection of libraries and tools that help you build adaptive, accessible, and robust user experiences.

FluentQt (Fluent-Qt): Fluent / WinUI-style Qt Widgets UI components and Gallery for native C++ desktop apps, with optional PySide6 bindings and WebAssembly.

Cutting-edge tools powering Angular full-stack development.

A frontend library for React and Vue that helps developers quickly build fast, accessible, and beautiful storefronts. Made with 💚 by Vue Storefront team and contributors.

Generative UI SDK for React

🍭 Lobe UI - an open-source UI component library for building AIGC web apps

Warm, expressive React components with considered motion. MIT licensed shadcn registry and Fumadocs documentation.

A platform-aware UI toolkit for Compose Multiplatform, from components to native window integration.

Curated catalog of React Native UI components, animations, and design inspiration. AI-assisted ingestion via OpenAI Codex.

A Jetpack Compose UI framework bringing a faithful 1:1 recreation of iOS 27 Liquid Glass, animations, controls, and interactions to Android.

Hand-drawn Compose Multiplatform components for Android, iOS, desktop and WebAssembly.

Automatically collecting #Preview and displaying them in your app.

Build your design system in React, Solid, Vue, Svelte or Vanilla. Powered by finite state machines

Out-of-the-box Lynx Component Library

A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.

Blazor UI components you own: headless primitives + styled components delivered as source by a dotnet tool. Tailwind CSS v4, 8 skins, 16 palettes, RTL and WCAG AA out of the box.