Open Source Google Workspace Alternatives
The best open source alternative to Google Workspace is ONLYOFFICE, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Google Workspace and nine of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Google Workspace are Zimbra Collaboration Suite (Freemium, Open Source), WikiSuite (Free, Open Source), Kolab Now (Paid, Open Source) and Kopano (Freemium, Open Source).
- Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. View 44 alternatives to Zimbra Collaboration Suite
- Freemium • Open Source
- SMBMail is a groupware server built with a focus on scalability and open standards. It provides secure, enterprise-style email, calendar & collaboration without the high cost. View 14 alternatives to SMBMailNo screenshots yet
- Paid • Open Source
SMBMail vs Google WorkspaceCosts less and does the same thing.