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Zimbra vs Google Workspace: catalog facts
Zimbra	Google Workspace
Paid Sold in several editions under Zimbra's license terms; see the edition comparison.	Freemium Listed as freemium, with paid plans for teams and businesses.
Web, Self-hosted	Web
Mail, calendar and contacts in one web client Can be run on your own servers	Documents, spreadsheets, slides, mail, storage and meetings in one account Real-time collaboration on shared files
Aimed at organisations rather than individuals Running a mail server takes administration effort	All files are stored on Google's servers Requires a Google account
Self-hosted, Hosted service	Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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