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Windows · Office & Productivity

ONLYOFFICE Desktop Editors for Windows

Free desktop office suite from ONLYOFFICE with strong Microsoft Office format fidelity and optional cloud/collaboration integration.

Updated August 9, 2026 · Reviewed by SoftNexi Editorial Team, Software research and documentation

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Overview

ONLYOFFICE Desktop Editors is a free document, spreadsheet, and presentation suite built by Ascensio System SIA. Unlike LibreOffice, its editors are built around the Office Open XML formats (.docx, .xlsx, .pptx) as the native format, which gives it noticeably tighter visual fidelity when opening files created in Microsoft Word, Excel, or PowerPoint.

It targets users and small teams who want a Word/Excel/PowerPoint-compatible editor for free but also want the option to connect to a document server or cloud storage (Nextcloud, ownCloud, or ONLYOFFICE's own cloud) for collaborative editing later. Used purely as a local desktop app, it needs no account or internet connection.

Compared with LibreOffice, ONLYOFFICE's ribbon-style interface will feel more immediately familiar to long-time Microsoft Office users, and formatting round-trips tend to be more faithful. Its trade-off is a narrower feature set outside the core three apps — there's no database tool equivalent to Access, for instance.

ONLYOFFICE also offers separately licensed server and cloud editions for organizations that want real-time multi-user co-editing; the desktop app reviewed here is the free, standalone client.

Key features

  • Native OOXML support for close visual fidelity with Word, Excel, and PowerPoint files
  • Ribbon-style interface familiar to Microsoft Office users
  • Built-in PDF viewer and form-filling for PDF forms
  • Optional connection to ONLYOFFICE cloud, Nextcloud, or ownCloud for collaborative editing
  • Plugin support for spell-check services, translators, and other add-ons
  • Comparison and review tools for tracking document changes

System requirements

Operating system
Windows 11 and Windows 10
Disk space
Several hundred megabytes for install
Internet
Not required for local editing; needed only for cloud connections

How to install ONLYOFFICE Desktop Editors

  1. 1. Download the installer

    Get the Windows installer from onlyoffice.com/download-desktop.aspx.

  2. 2. Run setup

    Approve the UAC prompt and follow the installation wizard; no account is required to complete it.

  3. 3. Open a document

    Launch ONLYOFFICE and use Open Local File to work with files already on your PC.

  4. 4. Connect cloud storage (optional)

    Under Connect Cloud, you can add Nextcloud, ownCloud, or another supported service if you want collaboration features.

How to use it

  1. 1. Edit a Word or Excel file

    Open the file directly; the ribbon layout mirrors Microsoft Office closely, so most menus and shortcuts will feel familiar.

  2. 2. Fill or create PDF forms

    Use the PDF module to open fillable PDF forms or convert documents to fillable PDFs.

  3. 3. Save in Office formats

    Files save as .docx, .xlsx, or .pptx by default, minimizing conversion issues when sharing with Microsoft Office users.

  4. 4. Add plugins

    Open Plugins > Manage to enable extras like additional spell-checkers or translation tools.

Safety and privacy

  • Download only from onlyoffice.com to avoid repackaged installers on third-party download sites.
  • The desktop editors are open source under AGPLv3, so the core code is publicly reviewable.
Bundled software
We have not identified bundled third-party offers in the official installer.
Privacy
Used as a standalone desktop app, ONLYOFFICE does not require an account and stores files locally; connecting to a cloud service is optional and user-initiated.

Known risks

  • Enabling cloud or server connections introduces the usual risks of any online storage integration; review the destination service's own privacy policy.

What's new

    Pros and cons

    Pros

    • Free desktop editors with no subscription required
    • Strong visual fidelity with Microsoft Word, Excel, and PowerPoint files
    • Familiar ribbon interface for Office users
    • Optional cloud/collaboration connections when needed

    Cons

    • No database application equivalent to Access
    • Real-time multi-user co-editing requires a separate server or cloud connection
    • Smaller plugin and template ecosystem than Microsoft 365

    Verdict

    ONLYOFFICE Desktop Editors is a strong free pick for people who mainly need faithful Word, Excel, and PowerPoint compatibility in a familiar ribbon interface, without paying for Microsoft 365. It's less complete as an all-in-one office suite than LibreOffice.

    Frequently asked questions

    Is ONLYOFFICE free?

    The desktop editors are free to download and use for local editing; server and cloud editions with real-time collaboration are separately licensed.

    Does ONLYOFFICE open .docx and .xlsx files well?

    Yes, ONLYOFFICE uses the Office Open XML formats natively, which typically gives strong visual fidelity with Microsoft Office files.

    Do I need an account to use ONLYOFFICE?

    No, the desktop app works fully offline without an account; an account or connection is only needed for cloud collaboration.

    Does it run on Windows 11?

    Yes, ONLYOFFICE Desktop Editors supports Windows 11 and Windows 10.