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ONLYOFFICE

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ONLYOFFICE is an office suite for text documents, spreadsheets, presentations and PDFs with strong compatibility with Microsoft Office formats. The free Desktop Editors run offline on Windows, macOS and Linux. Docs Community Edition is a self-hosted server for editing and co-editing in the browser; it needs a host platform such as Nextcloud and is recommended for up to 20 users.

Code Fireworks render of the ONLYOFFICE repository, as of Nov 2026
As of Nov 2026Code Fireworks ↗

Why it fits

Both Desktop Editors and Docs Community Edition carry GNU AGPL version 3 with additional terms appended by Ascensio System SIA. The Desktop Editors are free to install, and Docs Community Edition is free to self-host for private use under the AGPL.

Screenshot of ONLYOFFICE
Screenshot: Screenshot from the ONLYOFFICE DocumentServer repository, CC BY-SA 4.0; ONLYOFFICE is a trademark of Ascensio System SIA · terms · source

Getting started

3 steps · clarity 3/5

Prerequisites (from the official docs):

  • Desktop Editors: a Windows, macOS or Linux computer
  • Docs Community Edition: a server with Docker, at least a dual-core 2 GHz CPU, 4 GB RAM, 40 GB free disk and 4 GB swap (official requirements)
  • Docs needs a host application for file storage and sharing, for example Nextcloud; a built-in test example exists for trying it out
  • A JWT secret that you set yourself, and HTTPS (the image can obtain a Let's Encrypt certificate) for internet use

Steps:

  1. Generate a JWT secret of your own (do not leave the example value).
  2. Start the onlyoffice/documentserver container with that JWT_SECRET, as in the Docker guide.
  3. Open http://<server>/welcome to confirm Docs is running, then connect it to a host app such as Nextcloud with the same secret.

Official Docker guide (Docs Community Edition): https://helpcenter.onlyoffice.com/docs/installation/docs-community-install-docker.aspx

Desktop Editors download: https://www.onlyoffice.com/download-desktop

Notes

The LICENSE files add terms under AGPL Section 7: keep all copyright and attribution notices; mark modified versions as modified and as based on ONLYOFFICE by Ascensio System SIA; show these notices in the user interface; no trademark rights are granted (see the ONLYOFFICE Trademark Policy); non-code elements such as illustrations and icons are CC BY-SA 4.0. Source file headers state SPDX-License-Identifier: AGPL-3.0-only. ONLYOFFICE's license FAQ says the original logo may not be removed from its products. The README lists Community Edition as "up to 20 recommended" users; the current docs state no hard connection limit. Mobile web editors are listed as not included in Community Edition. The Desktop Editors are a normal app install; self-hosting Docs Community Edition takes server and Docker experience.

Sources

  1. onlyoffice.com
  2. github.com/ONLYOFFICE/DocumentServer/blob/master/LICENSE
  3. github.com/ONLYOFFICE/DesktopEditors/blob/master/LICENSE
  4. github.com/ONLYOFFICE/DocumentServer/blob/master/Readme.md
  5. onlyoffice.com/blog/2026/05/onlyoffice-license-and-trademark-policy
  6. helpcenter.onlyoffice.com/docs/installation/docs-community-install-docker.aspx
  7. onlyoffice.com/download-desktop

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