Open WebUI: ChatGPT-style web interface for Ollama with multi-user and history

Ollama was great for using models from the terminal, but had no proper web GUI. Open WebUI fills this gap with an application that closely resembles ChatGPT: the same two-column layout, conversation history in the sidebar, streaming messages appearing word by word.

The difference is that it runs on your local server and talks to the models you have installed with Ollama. You can also create multiple user accounts, useful for sharing it with family or colleagues without everyone seeing each other's conversations.

Within months it became the de facto standard for anyone who wants a private ChatGPT on a local network, whether on a Raspberry Pi, NAS, or desktop PC.