Open WebUI — Self-Hosted AI Chat Interface

Key Features

Multi-Model Chat

Switch between local (Ollama) and cloud (OpenAI, Claude) models in one interface. Compare responses side-by-side.

RAG (Document Chat)

Upload PDFs, text files, and web pages. Chat with your documents using built-in vector search.

Web Search

Real-time web search integrated into chat responses (SearXNG, Google, Brave).

Voice

Speech-to-text input and text-to-speech output for hands-free conversations.

Image Generation

Generate images with DALL-E, Stable Diffusion (ComfyUI/AUTOMATIC1111), or other backends.

Code Execution

Run Python code directly in chat with sandboxed execution.

Multi-User

User accounts, role-based access, shared conversations, and admin dashboard.

Plugins & Functions

Extend with custom tools, filters, and pipelines.

FAQ

Q: What is Open WebUI? A: A self-hosted AI chat interface supporting Ollama, OpenAI, Anthropic, and more. Includes RAG, web search, voice, and image generation. 129K+ GitHub stars — the most popular open-source AI UI.

Q: Can I use it without a GPU? A: Yes, connect to cloud APIs (OpenAI, Anthropic) without any GPU. For local models via Ollama, a GPU is recommended but not required.