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OpenLDAP vs Zentyal: catalog facts
OpenLDAP	Zentyal
Free Free, open-source software developed by the OpenLDAP community.	Paid Yearly or lifetime licences covering unlimited users, with a free 15-day trial.
Linux, Self-hosted, Command line	Linux, Self-hosted
Full LDAP server plus client libraries and command-line tools Separate feature and long-term support release series	Active Directory compatible domain controller for Windows clients Mail, groupware and network services in one interface
No graphical management interface included Configuration and schema design take real LDAP knowledge	Paid licence after the trial Aimed at small and mid-sized office servers rather than home use
Downloadable app, Self-hosted	Self-hosted, Operating system
Open source	Closed source
License not stated	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 September 24, 2026

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