OPEN-SOURCE


A full-featured modern digital workplace, including email management, calendaring, chats/video chats, file management, and collaborative editing.
Free of any cost and open to all. Under the AGPL v3, users can freely use, share, modify, and distribute software and creative works while respecting the original license of third-party packages.
Enjoy the convenience of having your emails, calendars, files and other important data always accessible and stay connected to your business no matter where you are.
A user-friendly interface for system administrators to manage their domains, accounts, mail stores, and class of service (COS) through a single unified admin panel.


Improve the efficiency of your email management by utilizing advanced features like attachment preview, shared folders, and multiple profiles. Protect your emails from spam using integrated anti-spam and antivirus solutions.

Stay organized and keep track of your team's schedule by using a comprehensive calendaring system with the ability to create shared calendars for each department and different team.

Fully-featured chat and video chats solution integrated into the same platform as your email, with screen sharing, file sharing, and group messaging allowing for easy communication with your team.

Enjoy the convenience of having your emails, calendars, files and other important data always accessible and stay connected to your business no matter where you are.

Keep track of all your files, folders, and their versions in an organized manner using a comprehensive file management solution with full sharing capabilities, access control, and file versioning.

Streamline your workflow and collaborate more efficiently by working on the same file simultaneously.
“Being open source means much more than just releasing the source code, it means unlocking the power and ideas of a global community, providing users with constant updates and improvements as the platform scales.” Paolo Storti, CEO
We have always believed that an open source approach is by far the best technical and organizational solution, as the community is the real driving force for innovation in every aspect of a product’s lifecycle. Zextras Carbonio Community Edition is the result of more than 20 years of hands-on experience in open source and collaboration platforms.
It is an ambitious and challenging project, which cherry-picks and improves the best open source components but also introduces innovative features, flexible integration and of course the experience of 100 million trusted users of Zextras technology.