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Free open source office suite with business productivity tools: document and project management, CRM, mail aggregator.


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ONLYOFFICE Community Server is a free open-source collaborative system developed to manage documents, projects, customer relationship and email correspondence, all in one place.

Starting from version 11.0, Community Server is distributed as ONLYOFFICE Groups on terms of Apache License.


  • Cross platform solution: Linux, Windows
  • Document management
  • Integration with Google Drive, Box, Dropbox, OneDrive, OwnCloud
  • File sharing
  • Document embedding
  • Access rights management
  • Customizable CRM
  • Web-to-lead form
  • Invoicing system
  • Project Management
  • Gantt Chart
  • Milestones, task dependencies and subtasks
  • Time tracking
  • Automated reports
  • Blogs, forums, polls, wiki
  • Calendar
  • Email Aggregator
  • People module (employee database)
  • Support of more than 20 languages

Community Server (distributed as ONLYOFFICE Groups) is a part of ONLYOFFICE Workspace that also includes Document Server (distributed as ONLYOFFICE Docs), Mail Server, Talk (instant messaging app).

Control Panel for administrating ONLYOFFICE Workspace can be found in this repo.


To compile the source code, follow this instruction.

Connecting your own modules

You can now create your own modules and connect them to ONLYOFFICE Groups (packaged as Community Server). See this instruction for more details.

Project information

Official website:

Code repository:

Docker Image:

License: Apache


User feedback and support

If you have any problems with or questions about ONLYOFFICE, please visit our official forum to find answers to your questions: or you can ask and answer ONLYOFFICE development questions on Stack Overflow.