ONLYOFFICE Docs (Document Server) is an open-source office suite that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms. The suite supports office files of all popular formats (DOCX, ODT, XLSX, ODS, CSV, PPTX, ODP, etc.) and enables collaborative editing in real time.

ONLYOFFICE Docs can be used as a part of ONLYOFFICE Workspace or with third-party sync&share solutions (e.g. Nextcloud, ownCloud, Seafile) to enable collaborative editing within their interface.

It has three editions - Community, Enterprise, and Developer.

Official website: https://www.onlyoffice.com

Code repository: https://github.com/ONLYOFFICE/DocumentServer

License: GNU AGPL v3.0

ONLYOFFICE Docs on official website: http://www.onlyoffice.com/office-suite.aspx

ONLYOFFICE Workspace on official website: https://www.onlyoffice.com/workspace.aspx

List of available integrations: http://www.onlyoffice.com/all-connectors.aspx

If you have any problems with or questions about ONLYOFFICE Document Server, please visit our official forum to find answers to your questions: forum.onlyoffice.com or you can ask and answer ONLYOFFICE development questions on Stack Overflow.