What is Open WebUI?

Open WebUI is the leading open-source, self-hosted alternative to ChatGPT. It provides a polished, feature-rich chat interface that connects to Ollama or any OpenAI-compatible API, giving you a private AI assistant you fully control.

Key Features

ChatGPT-Quality Interface

The UI is indistinguishable from ChatGPT in daily use — clean, responsive, with markdown rendering, code highlighting, and conversation management. It works beautifully on desktop and mobile.

Deep Ollama Integration

Open WebUI was built for Ollama first. Pull models, switch between them mid-conversation, and manage your model library all from the interface. No command line needed.

Built-in RAG

Upload documents (PDF, text, markdown) and Open WebUI indexes them for retrieval-augmented generation. Ask questions about your documents and get answers grounded in your actual content.

Multi-User with Roles

Unlike most self-hosted tools, Open WebUI supports multiple users with admin and user roles. Perfect for teams wanting a shared, private AI assistant.

Pricing

Open WebUI is completely free and open-source (MIT license). Self-host with Docker in one command: docker run -d -p 3000:8080 --add-host=host.docker.internal:host-gateway ghcr.io/open-webui/open-webui:main.

Who Should Use Open WebUI?

• Privacy-conscious users who want ChatGPT without sending data to OpenAI
• Teams wanting a shared, self-hosted AI assistant
• Developers who want to combine open-source models with a polished UI
• Organizations needing multi-user access control for AI tools

The Bottom Line

Open WebUI is what ChatGPT would be if it were open-source and self-hosted. The interface is polished, Ollama integration is seamless, RAG works well, and the multi-user support makes it team-ready. If you want a private AI chat interface, this is the best option available.