BoardUI

ReUI is a free, open-source React component library for the shadcn/ui ecosystem, developed by Keenthemes. It provides more than 1,000 copy-and-own registry examples across 71 categories, presented in realistic dashboard layouts rather than isolated demos, including data grids, filters, timelines, steppers, trees, calendars, kanban boards, and other interface blocks. The components are composed from shadcn/ui primitives and Tailwind CSS, with 19 custom in-house component types. Its Data Grid uses TanStack Table and virtualization and supports features such as drag-and-drop, pinning, resizing, and infinite scrolling. The in-house components have both Radix UI and Base UI versions and are distributed as TypeScript source through the registry rather than as an npm package, allowing the source to be copied into a React project. ReUI is released under the MIT License.

A minimal chatbot starter built with Next.js, the AI SDK, shadcn/ui, shadcn/react, shadcn/typeset, and the Vercel AI Gateway. It provides streaming chat with Markdown rendering, provider-native web search, tool calling, and a human-in-the-loop questionnaire in which the model can ask clarifying questions. The chat route streams responses with `streamText`, while the interface renders assistant messages as typed parts for text, GitHub repository lookups, web searches, questionnaires, and source URLs. Tool definitions are kept in separate files and composed through a central index; tool-part components display progress, results, errors, answered questions, and deduplicated search citations. Vercel deployments authenticate to the AI Gateway through OIDC, while local development uses an AI Gateway API key. The public unauthenticated chat route includes request validation, model restrictions, output and step limits, and client-disconnect handling, but the README recommends adding rate limiting, spending limits, and authentication before exposing it to real traffic.

ThreeUI is a free, open-source, login-free catalog and React component library for interactive Three.js, WebGL, shader, and UI components. Its Community edition provides browsing, search, themes, responsive layouts, live renderers, controls, variant pickers, source-code tabs, and complete Community component source code, while excluding Pro and Beta components and authentication, checkout, and Pro implementation source. The public library can be installed from npm as @designcodeio/threeui and imported as React components with shared styles through the package root or component subpaths, or run locally with Vite from the repository. Components that render full HTML documents require runtime assets to be copied into the host application's public directory. Application code and Community component code are MIT licensed; bundled fonts use the SIL Open Font License 1.1 and bundled Three.js runtime files use the MIT license.

A downloadable web-development project bundle from GreatStack for building a full-stack AI website builder with MongoDB, Express.js, React.js, and Node.js. The project includes starter assets and source files for a React website generator that accepts text prompts, builds websites step by step, exposes generation progress, and supports manual source-code editing, follow-up AI prompts, exporting, and publishing. Its tutorial project includes user authentication, REST APIs, an OpenRouter model integration, and an agent chat API for updating generated projects.

OpenBot is an open-source AI agent platform from CopilotKit that gives each agent its own computer with a browser, logins, files, tools, and a dedicated interaction channel. It runs in the user's infrastructure and accepts agents that speak the AG-UI protocol, including agents built with LangGraph, Mastra, CrewAI, Pydantic AI, Google ADK, or custom code. A single gateway mediates actions involving the computer, files, MCP servers, and UI components: it decides whether an action is permitted before execution and records it afterward. Agents can operate their own browser screen, hand control to a human for restricted actions, and return component-based responses. Docker Compose runs the application components and PostgreSQL, while the administrator supplies the model credentials; the repository describes the project as alpha software under active development.