Install Open WebUI – ChatGPT Interface for Ollama

Quick answer: Open WebUI + Ollama = your own ChatGPT interface on VPS. Docker Compose in 5 minutes.

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Frequently asked questions (FAQ)

Do I need Ollama for Open WebUI?

Yes – Open WebUI is the interface, Ollama the engine. Both on same VPS or Ollama remotely reachable.

Open WebUI vs ChatGPT?

Open WebUI: free after VPS cost, local data, any models. ChatGPT: best models, subscription, cloud.

HTTPS for Open WebUI?

Via Traefik/Caddy with Let's Encrypt or Cloudflare tunnel. Don't expose unencrypted publicly.

Multiple users?

Yes – enable registration in Open WebUI, admin approves users. Ideal for small teams.

RAG with own documents?

Open WebUI supports document upload and RAG. For large knowledge bases: add vector DB.

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