Open WebUI, Joute's review

The essentials

Open source web interface for Ollama and local LLMs, ChatGPT-style
Completely free and self-hostable
Supports Ollama, OpenAI API, local models, and RAG pipelines
Suited to developers and engineers running local LLMs

What is Open WebUI?

Open WebUI (formerly Ollama WebUI) is a ChatGPT-style web interface that connects to Ollama (or the OpenAI API) to deliver a clean chat experience on your own models. You self-host the app via Docker, connect it to Ollama, and you get a complete chat interface with history, multiple conversations, document upload, and integrated RAG. Everything runs locally -- your data never leaves your machine.

Strengths

Premium interface for local LLMs

The experience is comparable to ChatGPT with a polished design. History, multi-conversations, markdown, code highlighting. Everything's there.

Integrated RAG

You can upload documents and query them directly in the interface. Local RAG works without additional configuration.

Multi-providers

Open WebUI can connect to Ollama, the OpenAI API, and other compatible endpoints. Switch models in one click.

Limitations

Requires a server or Docker

Open WebUI is self-hosted. You need Docker installed and must manage updates yourself.

Not suited to non-technical users

If you don't know Docker or basic system administration, installation can be difficult.

Pricing

Completely free and open source.

Alternatives

For a local LLM interface without self-hosting: Msty. For local models simply: Ollama via CLI. For a simple cloud alternative: LibreChat.

Verdict

Open WebUI is essential if you're running Ollama locally. It's the most complete, best-maintained interface that most closely resembles ChatGPT for local LLMs. Best in its category.

FAQ

How do you install Open WebUI?

Via Docker: docker run -d -p 3000:8080 --add-host=host.docker.internal:host-gateway ghcr.io/open-webui/open-webui. The official documentation at openwebui.com is comprehensive.