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FOG Project vs opsi: catalog facts
FOG Project	opsi
Free Free, including for commercial use, with community support.	Free The core system is open source and free to use.
Linux, Web, Self-hosted	Self-hosted
Captures and deploys images over the network Handles Windows, macOS and Linux images	Automated software deployment to many clients Network operating system installation
Requires running your own FOG server Support is community-based through the forum	Requires running and maintaining your own server Project website is primarily in German
Self-hosted	Self-hosted
Open source	Open source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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