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Jan vs Open WebUI
A plain-English comparison to help you choose between them.
Zero-setup local chat against the self-hosted stack's front end: Jan is a desktop app that works out of the box, Open WebUI a browser interface you deploy over a model backend. Pick Jan when one person wants private AI with the least possible ceremony, open source end to end, offline by default, no account, no telemetry, a local engine and API server bundled into one install. Pick Open WebUI when the private AI is for a team, multi-user accounts, roles and an admin panel over Ollama or any compatible backend, document Q&A keeping internal files on the network, deployed and owned at Docker level.
Side by side
- Summary
Jan is the privacy-first desktop assistant: open source, fully offline by default, telemetry off, no account required.
- Best for
- Fully offline chat with conservative defaults
- Open-source auditability end to end
- No account, no telemetry, no cloud dependency
- Cost
- Free
- Ease
- Openness
- Runs privately (self-hostable)
- Data
- Offline by default with no account required; the strongest simple privacy posture in the category as long as optional cloud features stay off.
- Summary
Open WebUI is the self-hosted chat interface: a polished, ChatGPT-style front end for local and cloud models, most commonly deployed on top of Ollama.
- Best for
- A team-wide, self-hosted chat interface
- Multi-user accounts, roles and admin control
- Document Q&A over files that never leave the network
- Cost
- Free
- Ease
- Openness
- Runs privately (self-hostable)
- Data
- Chats, documents and user accounts live on your infrastructure entirely. Pair it with a local backend like Ollama and nothing leaves your network, which is the strongest team-privacy posture available.
Common questions
What is the one-person versus team seam?
Almost the entire decision. Jan's shape is a personal instrument: install, download a model, chat, with everything staying on the machine. Open WebUI's shape is shared infrastructure: a browser URL colleagues sign into, access control, chat history and admin oversight, which no desktop app provides and no single private user needs enough to run a server for.
What does each run underneath?
Jan bundles its own local engine, so it is complete alone, capability tracking the models your hardware can hold. Open WebUI runs nothing itself by design, an interface whose capability comes entirely from the backend you point it at, most commonly Ollama, which is why it complements the runners rather than replacing them and assumes Docker-level comfort to stand up.
What obligations come with each?
Jan's are nearly none, its conservative defaults being the differentiator for the cautious, with ecosystem maturity the trade: tool support and integrations trail the mainstream. Open WebUI's are a server owner's: Docker, updates, uptime, and above all security, since a team's private AI concentrates sensitive material in one place, so it sits behind proper authentication and stays patched.
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Tool facts last checked July 2026