Open source. Open possibilities.

A production-ready React component library for building AI DIAL interfaces, featuring base components, theming, accessibility, Storybook docs, and an MCP server for AI agents.

Franken UI (franken-ui/ui) is described as an HTML-first UI component library built on UIkit 3, extended with LitElement and inspired by shadcn/ui. Its README now only announces a move to 0build, so documentation lives elsewhere.

An 'awesome' list collecting JavaScript frameworks, web component libraries, UI component libraries for React, Vue, Angular, and more, mobile UI components, admin templates, and icon libraries. It includes GitHub star and npm download badges, and covers both active and historically significant projects.

Numl is a deprecated UI design language, web-component library and runtime CSS framework for quickly building interfaces that follow a design system, loadable with a single JavaScript module and no bundler or config.

Material Design for Bootstrap is a free UI kit offering 700+ components, themes, and templates for building responsive, mobile-first websites. Available for jQuery, Angular, React, and Vue under MIT license.

Chakra UI is an open-source React component system for building accessible web apps and SaaS products quickly. It ships installable component packages, supports Next.js RSC, and is MIT licensed.

TW Elements is an MIT-licensed component library for Tailwind CSS, offering 500+ interactive UI components and 117+ design blocks with dark mode support, theming options, and quick installation for personal and commercial use.

SessionReplaySDK is a privacy-focused iOS SDK for recording user sessions. It captures video, touch events, logs, and network requests with automatic PII masking, supporting SwiftUI/UIKit and local-first storage.

Tabler is a free, MIT-licensed HTML dashboard UI kit built on Bootstrap 5, offering ready-made layouts, components and 120+ demo pages for admin panels, dashboards and web apps, with dark mode, RTL stylesheets, Sass sources and TypeScript types.

UI UX Pro Max is an open-source AI skill for Claude Code, Cursor, and other AI coding assistants. It provides design intelligence including 79 searchable UI styles, 192 industry-specific reasoning rules, 192 color palettes, 74 font pairings, and stack-specific UI/UX guidelines across 22 tech frameworks.