ONLYOFFICE
Self-hosted office suite with real-time collaboration.
Open source alternative to:
ONLYOFFICE is a free and open-source office suite that provides a web-based platform for creating, editing, and collaborating on documents, spreadsheets, and presentations in real time. It offers a familiar interface similar to Microsoft Office and supports a wide range of file formats including .docx, .xlsx, and .pptx.
The suite includes collaborative editing with track changes, comments, version history, and granular access permissions. ONLYOFFICE can be integrated directly into platforms like Nextcloud, Seafile, and ownCloud, making it a powerful self-hosted alternative to Google Workspace tools. It supports formulas, charts, pivot tables, and mail merge for advanced productivity workflows.
Licensed under AGPL-3.0, ONLYOFFICE DocumentServer is fully self-hostable via Docker and is trusted by organizations worldwide. It also offers a desktop application and mobile apps, rounding out a complete productivity suite for teams that want to leave Google Docs and Sheets behind.
Frequently Asked Questions
Can ONLYOFFICE replace Microsoft 365 or Google Docs for document editing?
Yes. ONLYOFFICE provides a web-based suite for documents, spreadsheets, and presentations with an interface familiar to Microsoft Office users, and supports .docx, .xlsx, and .pptx formats natively. It covers advanced spreadsheet features like formulas, charts, pivot tables, and mail merge. Combined with its desktop and mobile apps, it can fully replace Office or Google Docs on your own infrastructure.
How does real-time collaboration work in ONLYOFFICE?
Multiple people can edit the same document at the same time, with track changes, comments, and full version history available. Granular access permissions let you control who can view, comment, or edit. It is designed as a self-hosted alternative to Google Workspace collaboration, running entirely on your own servers.
Can I integrate ONLYOFFICE with Nextcloud or Seafile, and how do I self-host it?
ONLYOFFICE DocumentServer integrates directly into Nextcloud, Seafile, and ownCloud, which is how many self-hosted teams add document editing to their existing storage. The DocumentServer is AGPL-3.0 licensed and self-hostable via Docker, with commercial editions adding support and scaling. The suite also ships desktop and mobile apps for offline editing.
Repository details
Updated 8/10/2026, 1:00:34 PM
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