AI Chat UIs

Self-hostable LLM chat interfaces — ChatGPT-style frontends that let users talk directly to LLMs (OpenAI, Anthropic, Ollama, or any OpenAI-compatible endpoint). Usually include multi-user auth, document RAG, MCP client, and Docker deployment. Examples: LibreChat, Open WebUI, AnythingLLM, Onyx, LobeChat, Chatbox, Jan. Distinct from Conversational AI (customer-facing chatbots/voice UIs deployed as a product) and Agent Tooling (orchestration frameworks and IDE assistants).

Open WebUI

Self-hostable multi-user LLM chat interface with RAG, MCP, and OIDC

Agent & MCP ToolingAI Chat UIs

Self-hostable web UI for LLMs from the Open WebUI project. Multi-user chat with generic OIDC authentication, shared workspaces, document RAG, MCP client support, and Python-based Pipelines and Functions for custom extensions.

LibreChat

Self-hostable ChatGPT-style chat UI with multi-provider support and MCP client

Agent & MCP ToolingAI Chat UIs

Open-source AI chat platform from Danny Avila that mirrors the ChatGPT interface with multi-provider routing, plugins, MCP client, and OpenID Connect login. Docker Compose reference deployment uses MongoDB with optional MeiliSearch for conversation search.