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Group-Office

Group-Office is an open-source groupware and CRM platform developed by Dutch company Intermesh, offering contact management, email marketing, project tracking, invoicing, and support ticketing in a single self-hosted web application. It targets SMBs and enterprises that want a privacy-respecting, self-hosted alternative to Microsoft 365 or Google Workspace with built-in CRM capabilities.

3.8/5full-suiteFree (Community edition, self-hosted)

Our verdict

Last verified Jun 12, 2026

Good groupware feature breadth with genuine CRM contact/marketing modules; transparent freemium pricing with a perpetual license model; strong EU privacy story; loses points for shallow sales pipeline (no leads/deals/stages) and low GitHub stars (265) indicating limited wider adoption signal.

Rating
3.8/5
Editorial score
Users
0
Verified users
Starting at
Free (Community edition, self-hosted)
perpetual-license
Category
full-suite
Market segment

Key Features

Contact address book with custom fields and team sharing
Email client with IMAP/CalDAV/CardDAV/WebDAV/ActiveSync sync
Newsletter and email marketing campaigns
Project management with time tracking and cost monitoring
Invoicing, quoting, and billing (paid add-on)
Helpdesk and support ticket system
Kanban boards
Document co-editing via OnlyOffice or Collabora Online
Chat and video conferencing via Rocket.Chat and Jitsi
Custom tools via Studio module

Pros & cons

Pros

  • Community edition is fully free with unlimited users
  • Single-platform for email, CRM, projects, and invoicing
  • GDPR-compliant; data stays on your own server
  • Active development with releases through June 2026
  • Docker-based installation available

Cons

  • CRM module lacks dedicated sales pipeline (leads, deals, stages)
  • Professional license is per-installation, not per-user — pricing jumps for >100 users
  • Smaller community than larger open-source CRM alternatives
  • Some advanced features (document editing, chat) require additional setup contracts

Detailed Information

No information available for Inventory Tracking Methods.

Best For

SMBs wanting a single self-hosted platform for email, CRM, and project managementOrganizations in the EU requiring GDPR-compliant data storage on their own serversTeams needing invoicing and support ticketing alongside CRM in one system

Not ideal for

Teams needing deep sales pipeline automation or lead scoringOrganizations wanting a purpose-built CRM rather than a groupware suiteVery small teams with no PHP server administration experience

Integrations

OnlyOffice
Collabora Online
Rocket.Chat
Jitsi
iOS ActiveSync
Android ActiveSync
macOS CalDAV/CardDAV
Windows CalDAV/CardDAV
Mollie (payments)
PayPal (payments)

ROI Calculator

Frequently Asked Questions

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0 verified users

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Additional Information

Category
full-suite
Price Range
Free (Community); €439 one-time (Professional, up to 100 users)
Pricing Model
perpetual-license

Company Information

www.group-office.com