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ISPConfig vs Froxlor: catalog facts
ISPConfig	Froxlor
Free Free and open source; enterprise support is available separately.	Free Froxlor describes itself as open source under the GPL.
Linux, Web, Self-hosted	Self-hosted
Manages multiple servers and mirrored clusters from one panel Covers web, mail, FTP, DNS and databases	Manages web, mail, and database hosting services Includes CLI and API management
Linux servers only Billing is a separate add-on module	The listed supported systems are Debian and Ubuntu
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: GPL-2.0
Not stated if an account is 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 October 2, 2026	Official website Full listing and sources Checked October 8, 2026

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