OnlyOffice (formerly TeamLab), stylized as ONLYOFFICE, is an open source office suite developed by Ascensio System SIA, a company with headquarters in Riga, Latvia. Solution features online document editors, platform for document management, corporate communication, mail and project management tools.
OnlyOffice is delivered either as a SaaS solution or as an installation for deployment on a private network. Access to the system is realized through private online portal.
OnlyOffice is involved in active technological partnerships with Nextcloud, ownCloud, SeaFile, Pydio, eXo Platform and XWiki.
OnlyOffice Desktop is an offline version of OnlyOffice editing suite. Desktop application supports collaborative editing features when connected to the portal, Nextcloud or ownCloud. Application is offered free of charge for both personal and commercial usage.
Desktop editors are a cross-platform solution available for Windows 10, 8.1, 8, 7, Vista, and XP (x32 and x64), Debian, Ubuntu and other Linux distributions based on RPM, Mac OS 10.10 and newer. Besides platform-specific versions there is also a portable option. OnlyOffice Desktop Editors are available for installation as a snap package and AppImage.
Editors are compatible with MS Office (OOXML) and OpenDocument (ODF) formats and support DOC, DOCX, ODT, RTF, TXT, PDF, HTML, EPUB, XPS, DjVu, XLS, XLSX, ODS, CSV, PPT, PPTX, ODP, DOTX, XLTX, POTX, OTT, OTS, OTP, and PDF-A.
Similarly to the online editing suite, the basic toolset of OnlyOffice Desktop can be upgraded using side plugins.
Desktop editors are distributed under AGPL v3 license for personal and commercial usage.
OnlyOffice editors are also available as mobile application for iOS and Android. The application is called ONLYOFFICE Documents.
In early 2019, OnlyOffice announced the launch of a developer preview of end-to-end encryption of documents (files themselves, online editing and collaboration) that involves blockchain technology and is included in the functionality of the desktop suite.
Nextcloud and ownCloud integration
In February 2017, OnlyOffice released the integration app for Nextcloud and ownCloud. It is possible to create and edit text documents, spreadsheets and presentations in OnlyOffice Editors within the interface of the platform. The desktop suite can also be connected to said platforms when OnlyOffice is integrated. Through integration with one of these services ONLYOFFICE editors can be installed as a component for Univention Corporate Server.
Similar applications have been developed for Sharepoint, Confluence and Alfresco.
The application runs under AGPL v3 open source license like other server and client solutions of OnlyOffice and is available on GitHub.
You can translate ONLYOFFICE.
More information here https://helpcenter.onlyoffice.com/guides/become-translator.aspx