Open WebUI (Chat Mode)

The conversation mode of Open WebUI is currently the most feature-rich multi-model chat solution in the self-hosted AI space. It supports connecting to local Ollama models, OpenAI-compatible APIs, Claude series models, and more, allowing users to compare models, tweak prompts, and manage conversations all within a single interface. Its built-in RAG engine enables loading local documents as conversation context, offering support for Markdown formatting, code highlighting, and conversation templates. Running entirely offline with all conversation data remaining on the device, it serves as the preferred chat tool for users and teams who prioritize privacy.