Term
Open WebUI
Open WebUI is an open-source chat interface for local and remote LLMs — a ChatGPT-like browser UX that runs as a Docker container and talks to Ollama, OpenAI-compatible APIs and more.
Open WebUI — explained in more detail
Open WebUI (formerly Ollama WebUI) is the most popular web front-end for self-hosted language models. After starting a container, the browser shows a chat interface with model selection, conversation history, RAG over uploaded documents, user and permission management, and plugins. On the backend the tool primarily speaks to Ollama, but can also connect to OpenAI, Anthropic, Groq or arbitrary OpenAI-compatible endpoints — letting local and cloud models live side by side.
Example / Practical context
Typical home setup: Ollama runs on a workstation with a GPU, Open WebUI in a container next to it, both communicating over HTTP. The web UI also lets family members or team colleagues without terminal access try out models. With the RAG feature enabled, PDFs, Markdown documents and web pages can be indexed — answers then cite the sources used.
How it differs from related terms
LM Studio ships its own desktop GUI with model browser and integrated inference — no separate backend component required, but also no multi-user. AnythingLLM leans more heavily on workspace concepts with per-project knowledge bases. Pure API servers like LiteLLM provide no UI at all, just a unified API facade over multiple providers.
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