OnlyOffice for PC: How to Download and Install on Windows (2026 Guide)

If you work with Word, Excel, and PowerPoint files but would rather not pay for a subscription, OnlyOffice Desktop Editors is one of the strongest free options available. It edits Microsoft Office documents natively, works offline on your PC, and costs nothing.

This guide shows you how to download OnlyOffice for PC from the official website, install it on Windows 11 or 10, and create your first document. System requirements, key features, and honest answers about cost are covered below.

What Is OnlyOffice?

OnlyOffice is a free, open-source office suite developed by Ascensio System SIA. Its desktop package, called OnlyOffice Desktop Editors, combines a word processor, a spreadsheet editor, and a presentation editor in one tabbed application, with extra tools for PDF files and fillable forms.

Its biggest advantage is compatibility. Where many free suites convert Microsoft formats and sometimes shift the layout, OnlyOffice uses DOCX, XLSX, and PPTX as its native formats — so documents shared with Microsoft Office users look the way you made them, and files you receive open correctly.

Key Features of OnlyOffice

Native Microsoft formats: DOCX, XLSX, and PPTX are the working formats, minimising layout surprises when files are shared.
Three editors in one app: Documents, spreadsheets, and presentations open in tabs inside a single window.
Works fully offline: Create and edit files on your PC with no connection; connect a cloud account only if you want syncing.
PDF tools included: View and annotate PDFs, fill in forms, and convert documents between formats.
Familiar interface: A ribbon layout close to Microsoft Office, so most users feel at home within minutes.
Optional cloud connection: Link an OnlyOffice cloud, Nextcloud, ownCloud, or similar account for real-time co-editing.
Plugins and macros: Extend the editors with plugins for tasks like drawing, translation, and bibliography work.

System Requirements

Operating System: Windows 11, Windows 10, Windows 8, or Windows 7 (64-bit recommended)
Processor: Dual-core Intel or AMD CPU at 2 GHz or faster
RAM: 2 GB minimum, 4 GB recommended for large documents and spreadsheets
Storage: Around 600 MB free for the application
Internet: Only needed for the initial download and optional cloud features
Account: None for desktop editing — an account is only needed for the optional online services
Display: A 1280 × 1024 or higher resolution screen is recommended

How to Download OnlyOffice (Official Method)

Office software handles your most important documents, so where you download it matters. Get OnlyOffice only from its official website, where the current desktop version is published free of charge and free of bundled extras.

Official Website: Download OnlyOffice from the official website

Step-by-Step Installation

Open the official OnlyOffice download page linked above.
Under Desktop Editors, click the download button for Windows (the 64-bit version suits most PCs).
Save the installer file, then double-click it to begin setup.
Approve the Windows permission prompt and select your language.
Follow the setup wizard, keeping the default installation folder unless you prefer another.
Choose whether to create a desktop shortcut, then click Install.
Click Finish and launch OnlyOffice from the Start menu — the start screen shows all three editors and your recent files.

First-launch note: To make OnlyOffice your default for Office files, right-click any DOCX file, choose “Open with”, select OnlyOffice, and tick “Always use this app”. Repeat once for XLSX and PPTX files.

How to Create Your First Document in OnlyOffice

Open OnlyOffice and click “Create new” → “Document” on the start screen (or open an existing file from your PC).
Type your content; the Home tab holds the everyday tools — fonts, sizes, bold, alignment, and styles.
Use the Insert tab to add pictures, tables, shapes, or page numbers.
Press Ctrl + S to save; the file is stored in DOCX format by default, so it opens perfectly in Microsoft Word too.
For a spreadsheet or presentation, start again from the start screen and choose Spreadsheet or Presentation instead.

Is OnlyOffice Really Free?

Yes. OnlyOffice Desktop Editors is free and open-source software under the AGPL licence — free for personal and business use, with the complete document, spreadsheet, and presentation editors included and no time limits. The company also sells optional cloud workspace plans for teams that want online storage and collaboration servers, but the desktop app in this guide needs no account and no payment of any kind. If a website charges for the desktop editors themselves, it is not the official source.

Frequently Asked Questions

Is OnlyOffice safe to download?
Yes, from the official website linked above. OnlyOffice is an established, open-source project, and its code can be inspected. Downloading from the official page protects you from repackaged copies on unofficial sites.

Is OnlyOffice really free, or is it a trial?
It is genuinely free, not a trial. The desktop editors are open source and stay free permanently, with no feature countdown and no subscription prompts. Paid plans exist only for the optional hosted cloud services.

Will my Word and Excel files look right in OnlyOffice?
Almost always, yes. Because DOCX, XLSX, and PPTX are its native formats, OnlyOffice keeps layouts, tables, and formatting intact better than most free suites. Extremely complex documents with rare macros may still behave differently, as with any alternative editor.

Does OnlyOffice work offline?
Yes. The desktop editors are a normal installed application: create, edit, and save files with no internet at all. A connection matters only if you connect a cloud account for syncing or co-editing.

Conclusion

OnlyOffice gives you a modern, Microsoft-friendly office suite without subscriptions or compatibility headaches. Install it from the official website, open your documents, and everyday office work is covered — free.

Download OnlyOffice from the Official Website

OnlyOffice for PC: How to Download and Install on Windows (2026 Guide)