Top COMPONENT-LIBRARY GitHub Repositories & Tools (2026)

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

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

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

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.

💎 An accessible, theme-ready design system built for learning applications and Open edX.

Backpack Design System

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.

Svelte implementation of the Carbon Design System