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OnlyOffice

onlyoffice.com Text Editors Website

ONLYOFFICE provides an online office suite compatible with Microsoft Office formats for document editing and collaboration.

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onlyoffice.com
OnlyOffice homepage screenshot

About OnlyOffice

ONLYOFFICE is a secure online office suite built to be highly compatible with Microsoft Office file formats. It offers tools for creating, editing, and collaborating on text documents, spreadsheets, presentations, and fillable PDF forms, with flexible deployment options including cloud access, integration with third-party platforms, and downloadable desktop and mobile apps for offline use.

The platform includes AI-powered assistants for tasks like content generation, translation, and grammar checking, alongside robust security features such as end-to-end encryption and compliance with international security standards. It is suited for individuals, teams, and organizations that need reliable Office-compatible editing and collaboration capabilities, including those requiring self-hosted solutions or integration with existing workflows for sensitive work.

Key features

  • Edit, view and collaborate on docs, sheets, and slides online
  • Build and complete fillable PDF forms
  • AI tools for content generation, translation, and grammar checks
  • End-to-end encryption and security standard compliance
  • 40+ integrations with platforms like Box, Moodle, and Nextcloud
  • Free desktop and mobile apps for offline editing
Best for: Teams and organizations that need secure, Microsoft Office-compatible document editing and collaboration tools, with options for self-hosting or integration with existing platforms.
Good for
  • High compatibility with Microsoft Office file formats
  • Free desktop and mobile apps for offline use
  • Strong security features including end-to-end encryption

OnlyOffice at a glance

Type
Website
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 7, 2026 · Online when checked
Listed
Oct 5, 2026

OnlyOffice alternatives

Tools and sites you could use instead, ranked by how closely they match.

LibreOffice

libreoffice.org

LibreOffice is a free, open-source office suite for Windows, macOS and Linux, with tools for documents, spreadsheets, presentations, drawings, databases and formulas.

FreeOpen source

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OnlyOffice FAQ

Is ONLYOFFICE free to use?
Yes, ONLYOFFICE offers free desktop editors for Windows, Linux and macOS, free mobile apps for iOS and Android, a free Startup cloud plan, and free self-hosted community builds.
What file formats does ONLYOFFICE support?
ONLYOFFICE is highly compatible with Microsoft Office formats, and supports viewing, editing, and converting PDF files, as well as exporting documents to Markdown and HTML.
Can I use ONLYOFFICE without an internet connection?
Yes, free desktop apps for Windows, Linux and macOS allow offline document editing without an active internet connection.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 6, 2026 · How we rank