OnlyOffice is an open-source Office Suites solution from Ascensio System SIA. Compare it against 7 other Office Suites tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.
What is OnlyOffice?
OnlyOffice is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under Office Suites and published by Ascensio System SIA. Buyers typically evaluate OnlyOffice when they need a dependable Office Suites option and want to weigh the trade-offs between free, open-source and paid tools before committing.
Yes. OnlyOffice is open source and free to use, with no purchase cost for the core product.
What are the best OnlyOffice alternatives?
Popular Office Suites alternatives to OnlyOffice include Apache OpenOffice, Apple iWork, Google Workspace, LibreOffice. See the full list of Office Suites on FreeSoftwareX.
