Documents and notes

Google Workspace Business Starter alternatives

2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.

The full assessment →

The projects

Alinto/sogo2,143GPL-2.0Groupware providing webmail, calendaring, address books, and shared resource management via standard protocols.Open on GitHub ONLYOFFICE/CommunityServer3,153Apache-2.0Self-hosted office suite with document management, collaborative editors, project tools, CRM, and mail aggregation.Open on GitHub

What you give up either way

Google-scale reliability, uptime, and global infrastructure
Proprietary Gemini models and integrated AI features
Deep integrations across Gmail/Drive/Calendar/Meet and marketplace apps
Enterprise-grade admin/security controls and compliance add-ons
Seamless mobile/web clients and polished UX

An open-source project doing the core job proves a replacement is possible. It does not prove it matches Google Workspace Business Starter, and it does not prove anyone has run it for a month. How we decide.