Edit .docx.xlsx, and .pptx files offline without a Microsoft 365 subscription.
Connect to a Nextcloud or ownCloud server for real-time collaborative document editing.
Fill and sign PDF forms, add password protection, and apply digital signatures.
Install on Linux via Snap or Flatpak for a sandboxed, easy-to-update office suite.
Binary installers available for all platforms, building from source requires fetching multiple component repositories and is only needed for code-level changes.
ONLYOFFICE Desktop Editors is a free, open-source office suite for Windows, macOS, and Linux. It includes editors for text documents, spreadsheets, presentations, and PDFs, along with a form creator for fillable PDF forms and a viewer for diagram files. The suite is designed to work entirely offline once installed, with no internet connection required for basic use. It reads and writes files in the same formats used by Microsoft Office, including .docx.xlsx, and .pptx, which means documents can be exchanged with people using other software without conversion problems. Beyond local file editing, the suite can connect to several cloud storage and collaboration platforms. When connected to a compatible server, multiple people can work on the same document at the same time and see each other's changes live. Supported platforms include ONLYOFFICE's own server product as well as Nextcloud, ownCloud, Moodle, Seafile, and a few others. The desktop app also supports digital signatures, password protection, and a dark mode, along with AI-powered writing assistants. The interface is available in 46 languages and includes support for right-to-left text and languages that use characters outside the Latin alphabet. A plugin system lets developers add extra functionality to the editors beyond what the standard format supports. A marketplace with existing plugins is available from the ONLYOFFICE website. Installation packages are available in the standard formats for each platform: .exe for Windows.dmg for macOS, and .deb or .rpm for Linux. For Linux users who prefer containerized or sandboxed installs, the suite is also available through Snap, Flatpak, and AppImage. The project is licensed under the GNU Affero Public License version 3, which is a copyleft open-source license. Source code for the various components is spread across multiple repositories in the ONLYOFFICE GitHub organization, and build instructions are available for those who want to compile it from source.
← onlyoffice on gitmyhub — every repo by this author, as a profile.
Verify against the repo before relying on details.