Open365 is an all-in-one productivity suite, based on KDE, Seafile, LibreOffice, Docker, and Jitsi. Developed by eyeOS
License: Open Source
ONLYOFFICE offers a more comprehensive suite of productivity tools with self-hosting capabilities, making it suitable for organizations needing data control. In contrast, Open365 is more user-friendly and cloud-centric but lacks the advanced features and self-hosting options of ONLYOFFICE.