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ONLYOFFICE - Secure Online Office | ONLYOFFICE

**Meet ONLYOFFICE DocSpace 3.5** with the upgraded editors! A more powerful PDF Editor with Redact and new annotation tools, streamlined sharing, improved file and room management, and more.

Meet ONLYOFFICE DocSpace 3.5

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# Run your private office with the ONLYOFFICE

Get it nowSee it in action

## ONLYOFFICE Docs,
the most complete office suite

- View, edit, and collaborate on docs, sheets, slides
- Build fillable PDF forms and fill them in online
- Read and edit PDFs, export/import to/from PDF
- Convert docs to Markdown and HTML
- Turn your textbooks into e-books
- View and navigate diagrams with ease

Learn more about ONLYOFFICE Docs features

## Designed to make collaboration seamless

- Share your docs for viewing, editing, reviewing, commenting, or filling forms
- Make use of character- and paragraph-level co-editing modes
- Compare and review docs and track changes
- Leave comments and mentions
- Communicate via built-in chat or Telegram
- Make audio and video calls with Jitsi or Rainbow

Learn more about ONLYOFFICE collaboration features

## Enhanced with AI-powered virtual assistants

- Connect any AI model, including a local one
- Use different AI models for different tasks
- Generate texts, images, and code
- Get quick answers to your questions
- Check your text spelling and grammar
- Easily rewrite your text making it shorter or longer
- Translate into different languages and do much more
- Use AI inline agent BETA for smart interaction with the editors

Learn more about AI assistants in ONLYOFFICE

## Security first

- Open source code available on GitHub
- Compliance with international security standards
- Three levels of encryption: at rest, in transit, end-to-end
- Secure access and monitoring tools
- Extra document permissions

Learn more about ONLYOFFICE security features

## Get started and choose where to work

### In ONLYOFFICE DocSpace

Create rooms within your secure DocSpace, invite people, view, edit, and collaborate on all kinds of documents from any desktop or mobile device.

Start with your free account

### In the platform you use

Connect Docs to edit documents directly from your app. 40+ ready integrations: Box, Moodle, Nextcloud, Odoo, Wordpress, etc.

Get Docs now

### In the platform you build

Integrate Docs into your service to provide powerful document-editing and building capabilities to your customers under your brand.

Learn more

### From your PC

Edit docs offline with free office apps for Windows, Linux, and macOS

Download now

### From your mobile devices

Work on documents on the go with free apps for iOS and Android devices

Install now

### Trusted by more than 15 million users worldwide

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More customers

#### How Kinderhaus Berlin shares and collaborates on sensitive files with ONLYOFFICE DocSpace

#### Why the Guará Linux team chooses ONLYOFFICE Desktop Editors as the default office suite for 22.000 employees of the Military Police of Minas Gerais

#### How Czech TV replaced Google Docs and MS Office with ONLYOFFICE and ownCloud

#### How SWITCH integrated ONLYOFFICE into SWITCHdrive to create a complete alternative to Office 365

#### The City of Hopewell, Virginia: enabling remote work for 500 government employees with ONLYOFFICE

#### How Calar Alto Observatory implements ONLYOFFICE for secure & location-independent collaboration

More success stories

## Highly rated by both critics and users

- Slashdot Leader Fall 2025
- Top 20 Document Management Software
- Office Suites High Performer Fall 2023
- GOLD in the Cloud Content Management 2024
- Top rated office suites
- SourceForge Leader Fall 2025

- 4.7 / 5
- 4.5 / 5
- 4.6 / 5
- 4.5 / 5
- 89 / 100
- 4.5 / 5

## Stay up-to-date with the latest from ONLYOFFICE

###### Releases

##### ONLYOFFICE Docs 9.1 released: A more powerful PDF Editor with Redact and new annotations, faster formulas, and more

14 October 2025

##### ONLYOFFICE DocSpace 3.5 released: streamlined sharing, improved file and room management, major usability enhancements, and more

20 October 2025

More news here

###### Webinars

24:34##### ONLYOFFICE integrations for e-Learning platforms

Webinar

30 September 2025

10:31##### How to work with office files in Odoo using ONLYOFFICE

Webinar

6 November 2025

More videos here

###### Events

##### Open Source Experience 2025

December 10–11, 2025

Paris, France

##### GITEX Africa

April 7–9, 2026

Marrakesh, Morocco

More events here

## Frequently Asked Questions

Get answers to the most popular questions about ONLYOFFICE

Is ONLYOFFICE really free?

Yes, it is. ONLYOFFICE is a free and open-source office suite distributed under the AGPL 3.0 license. The source code repositories are available on GitHub.

Besides, we offer a range of free solutions that you can choose from based on your needs. These include absolutely free desktop editors for Windows/Linux/macOS, free mobile apps for iOS/Android, the free Startup plan of ONLYOFFICE DocSpace Cloud.

Free community builds of ONLYOFFICE solutions for self-hosting can be found here.

What is ONLYOFFICE used for?

ONLYOFFICE provides a full range of tools to create, edit and collaborate on text documents, spreadsheets, presentations, PDF forms and regular PDF files on web, desktop and mobile platforms.

You can use the online editors within any business platform or opt for the room-based content collaboration platform ONLYOFFICE DocSpace which already comes with the integrated editors. Besides, you are able to embed the editors into your own web app.

Desktop editors for working with office documents offline, as well as mobile apps are also available.

Is ONLYOFFICE safe to use?

Yes, it is. We prioritize security with robust measures. ONLYOFFICE is open-source and GDPR compliant – which means it fits all the legal criteria for data protection. ONLYOFFICE includes file encryption and multiple options for secure sharing and access control. Besides, our solutions can be deployed on private servers.

Can I use ONLYOFFICE offline?

Yes, you can. To do so, download the free ONLYOFFICE Desktop Editors which is available for Windows, Linux, and macOS.

Does ONLYOFFICE have ads?

No, ONLYOFFICE is ad-free. We don't incorporate any external ads into our solutions.

Who owns ONLYOFFICE?

ONLYOFFICE is owned by Ascensio System SIA, a Latvian company which is a subsidiary of OnlyOffice Capital Group Pte. Ltd. The beneficiaries of OnlyOffice Capital Group Pte. Ltd. are listed in the registry of Singapore companies by ACRA. The business profile is available here.

Who is the CEO of ONLYOFFICE?

The founder and the CEO of ONLYOFFICE is Lev Bannov (Istanbul, Turkey).

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Comparison

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