Side-by-side

Open WebUI vs Jan

Open WebUIJan

	Open WebUI A polished self-hosted ChatGPT-style interface for any model. Visit	Jan Run open-source AI chatbots offline on your own computer. Visit
Votes	0	0
Pricing	Free	Free
Category	Chatbots	Chatbots
Tags	practical-ossself-hostedchat-uisource-available	practical-ossopen-sourceself-hostedoffline
Best for	—	—
Pros	Polished, feature-rich ChatGPT-style UI and the most popular front end for Ollama Works with local models and any OpenAI-compatible API, mixing both freely Built-in multi-user accounts, chat history, RAG, and a plugin/function system Actively and rapidly developed with frequent releases Free to self-host, and small deployments (<=50 users) can rebrand freely	Runs LLMs fully offline on your own hardware, so conversations stay private by default Simple point-and-click model downloads from Hugging Face, no command line required Genuinely open source under the permissive Apache-2.0 license Exposes an OpenAI-compatible local API server (localhost:1337) for wiring into other apps Optionally connects to cloud providers and supports MCP for agent-style tool use
Cons	Source-available, not strict open source: a branding clause restricts removing Open WebUI branding above 50 users Larger or commercial deployments may need written permission or an enterprise license Like all front ends, it needs you to supply models (e.g. Ollama) or API keys Feature breadth and rapid changes can make setup and upgrades fiddly	Local model quality depends heavily on your RAM and GPU; small models are far weaker than ChatGPT or Claude Decent performance effectively needs 16GB+ RAM and ideally a supported GPU Still maturing, with a fairly high open issue count and occasional rough edges Building from source on Windows is involved and requires a full compiler toolchain

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