Open WebUI
The front end you hand to users when the model layer is already done.
Open WebUI sits in front of Ollama or any OpenAI-compatible endpoint and gives you accounts, conversations, document upload, RAG over uploaded files, and model management — the parts nobody wants to build twice. It is the fastest way to turn a working inference server into something a department can actually log into, and it is the default first stop for on-prem deployments that need a UI yesterday.
Best for: Internal chat deployments on top of self-hosted models, with real user accounts
Deploy: Self-hostable