Web Components GitHub Repositories (2026) · Open Source Tools

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

Open Source Online Genealogy System

A data visualization and analytics component, especially well-suited for large and/or streaming datasets.

Give your AI agent a 3D body: text or a photo to a rigged GLB avatar, an LLM brain, a Solana wallet and a one-tag embed. Keyless MCP server for Claude, Cursor and Codex. 50k+ models forged.

Declarative dynamic forms engine. Define dynamic forms with a typed TypeScript builder or as JSON, then render them in React, Angular, Vue, Lit, or vanilla JS. Includes validation, SSR, i18n, accessibility, theming, and an MCP server for AI assistants.

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

Web component extensions to the standard <time> element.

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

Animated ascii art for web pages, in TypeScript: React, Next.js, Astro, or one HTML tag

Monorepo of HAX web components built with Lit and the DDD design system, published to npm as @haxtheweb/*

Modern Accessible WYSIWYG rich text editor built as a framework-agnostic Web Component that works everywhere.

A modern UI card system for Home Assistant focused on clean design, smooth interactions and real usability.

Web Components for building declarative, graphical web apps

A series of web components examples, related to the MDN web components documentation at https://developer.mozilla.org/en-US/docs/Web/Web_Components.

A library of behaviors for agents to build the next generation of user interfaces.

👓 Syntax Highlighting using the CSS Custom Highlight API

A wrapper implementation for React of the UI5 Web Components that are compliant with the SAP Fiori User Experience

NodejS Monorepo Template

Markdown formatting buttons for text inputs.

Auto-complete input values from server search results.