Document Q&A with RAG
Upload PDFs, images, text files, and more — Open WebUI indexes them locally and answers questions based on their content. No document ever leaves your server for processing.
Applications → Open WebUI
Your private AI chat, on your server.
Open WebUI is a private, ChatGPT-style AI chat interface running entirely on your own ReefOffice server. Ask questions about your documents, research topics, draft content, or just chat — your conversations never leave your machine. Connect to local Ollama models or your preferred external AI provider.
What Open WebUI does
Open WebUI provides a familiar chat interface connected to your choice of AI models — local Ollama models on AI plans, or your own provider key on Office plans. It includes built-in document RAG (Retrieval-Augmented Generation), letting you upload PDFs, images, and text files and ask questions about their content. Everything runs on your server, with full SSO via Authentik.
Chat, search, draft and analyse — privately
Multiple model support
Connect to local Ollama models (Mistral, LLaMA, Qwen, and more) or external providers like OpenAI, Anthropic, or OpenRouter. Switch between models mid-conversation.
Conversation management
Organise chats into folders, search past conversations, and pick up where you left off. Your entire chat history stays on your server, searchable and private.
OpenAI-compatible API
Open WebUI exposes an OpenAI-compatible endpoint that ReefRunner and Activepieces can call — enabling automations like "summarise new documents" or "answer questions from your knowledge base".
How it's deployed
A single container, private by design
Open WebUI runs as a single Docker container on your ReefOffice server, proxied through nginx with Authentik OIDC authentication. It connects to Ollama for local inference and Qdrant for vector-based document search when enabled. The underlying data — conversations, documents, settings — is stored persistently at /opt/openwebui/data. Every request stays within your server boundary.
The chat layer of your workspace
Open WebUI is the conversational interface to your entire ReefOffice stack. Upload a Nextcloud document and ask questions about it. Use the OpenAI-compatible API to power document-summary automations in Activepieces. Connect Hermes Agent to the same local models. Your chat history, your document index, your models — all on your server.
Common questions
Can I use my own AI provider (OpenAI, Anthropic, etc.)? +
Yes. On Office plans without local GPU, you can add your own provider key in the Open WebUI settings. On AI plans, local Ollama models are the default, but you can still connect external providers alongside them.
Are my chat conversations private? +
Yes. Everything stays on your server — your conversations, uploaded documents, and the models they're processed by. Nothing is sent to a third party unless you explicitly connect an external provider, and even then only the conversation content you submit is sent.
Can I share a chat with someone else on my server? +
Open WebUI supports conversation sharing within your organisation. You can share chats with other users on your ReefOffice server, making it useful for collaborative research and knowledge sharing.
Ready for private AI chat on your own server?
Book a demo and see how Open WebUI on ReefOffice gives you a private, powerful AI chat interface — with document Q&A, local models, and full SSO, all on your own server.