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Jan vs Open WebUI: catalog facts
Jan	Open WebUI
Free Free and open source. Using a third-party cloud model through Jan costs whatever that…	Freemium Free to self-host. The project sells an enterprise plan with support and branding rights.
Windows, macOS, Linux	Self-hosted, Web
Runs fully offline on your own computer when you want it to Same interface for local models and for OpenAI, Anthropic, Google, Mistral and others	One interface for local Ollama models and any OpenAI-compatible API Document upload and retrieval so you can ask questions about your own files
Still pre-1.0 and moving fast; features appear and change between releases Adding a cloud provider means putting that provider’s API key into the app	The licence adds a branding condition, so it is not plain BSD It is a server you have to run, update and secure yourself
Downloadable app	Self-hosted, Web application
Open source	Not stated if open source
License: Apache-2.0	License: Open WebUI License, based on BSD-3-Clause with a branding clause
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.