Top COMPONENT GitHub Repositories & Tools (2026)

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

A web component for visual art and creative coding

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

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

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

AI-powered Storybook story generator — works with any framework, any design system, any LLM provider

Provides an object-oriented API to sanitize untrusted HTML input for safe insertion into a document's DOM.

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

A React-based UI toolkit for the web

Local-control Home Assistant component that authenticates to newer-firmware Samsung devices and talks over CoAP-DTLS.

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 145+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI. If Radzen Blazor is useful to you, a ⭐ on GitHub helps other Blazor developers find it.

JavaScript Testing utilities for React

Numbers that move the way they should. A React component from The San Francisco Interface.

F´ - A flight software and embedded systems framework

Finds files and directories via an intuitive fluent interface

Provides a structured process for converting a Request into a Response

Provides tools to internationalize your application

The most awesome validation engine ever created for PHP

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