What OnlyOffice Desktop does
ONLYOFFICE Desktop Editors is a free, open-source office suite that runs on Windows, macOS, and Linux. It bundles three fully featured editors — a word processor, a spreadsheet editor, and a presentation editor — each accessible from a single unified application window. The suite is built around native compatibility with Microsoft Office formats. Documents, spreadsheets, and presentations saved in DOCX, XLSX, and PPTX open and save directly in those formats without conversion, which preserves formatting, formulas, styles, charts, and embedded objects when files are shared with Microsoft Office users. ODT and other open document formats are also supported. Beyond core editing, ONLYOFFICE Desktop includes a built-in PDF viewer and a form-filler for interactive PDF forms, so users can handle signed or fillable documents without switching to a separate reader. A plugin system extends the suite with additional capabilities, such as translation services and citation or reference managers, provided through the official plugin marketplace. The desktop editors work fully offline. Optionally, users can connect the application to an ONLYOFFICE collaboration server or compatible third-party platforms to enable real-time co-editing and document version history in a self-hosted or cloud environment. The collaboration layer is not required for standalone use. Licensed under the GNU AGPL open-source license, the source code is publicly available. This makes ONLYOFFICE Desktop a practical choice for individuals, students, small teams, and organizations that require Office-format fidelity without a subscription. This page provides access to the official standalone installer from ONLYOFFICE, hosted at download.onlyoffice.com. Only download ONLYOFFICE Desktop from the official publisher domain to ensure you receive an unmodified, safe copy of the software.
