Compare software

Jan vs Witsy: catalog facts
Jan	Witsy
Free Free and open source. Using a third-party cloud model through Jan costs whatever that…	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, macOS, Linux	Windows, macOS, Linux
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	Works with local model servers as well as cloud APIs.
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	Cloud connections require your own provider credentials.
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: AGPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 22, 2026

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