Open WebUI

Open source · OSI-approvedStatus: unknown

One chat interface for every model you run or connect

Open WebUI is the front end that turns a local inference server into something a household or a team can actually use. It handles accounts, conversation history, document retrieval, and model switching, and speaks to both local runtimes and hosted APIs.

Because it stores conversations on your own server, it is one of the few chat interfaces where you can honestly say the transcripts never left the building.

Decisive facts

Connects to Ollama, llama.cpp, and any OpenAI-compatible endpoint
Retrieval over uploaded documents and crawled web pages
Multi-user accounts with per-model access control
Python function calling and a pipeline plugin system
Conversation history stored on your own server

LLM Runtimes & Chat AI Agent Platforms self-hosted python svelte rag llm privacy

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ChatGPT

OpenAI's assistant and the interface that set the pattern

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