Microsoft 365 vs ONLYOFFICE Docs Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Microsoft 365

0.0 (0 reviews)

Microsoft 365 is a cloud-based subscription service that brings together premium Office apps, intelligent cloud services, and advanced security to help you achieve more across your professional and personal life.

Starting at $6/mo
Free Trial 30 days
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ONLYOFFICE Docs

0.0 (0 reviews)

ONLYOFFICE Docs is a powerful online office suite that provides you with collaborative editors for text documents, spreadsheets, presentations, forms, and PDF files to streamline your team's document workflow.

Starting at Free
Free Trial 30 days

Quick Comparison

Feature Microsoft 365 ONLYOFFICE Docs
Website microsoft.com onlyoffice.com
Pricing Model Subscription Freemium
Starting Price $6/month Free
FREE Trial ✓ 30 days free trial ✓ 30 days free trial
Free Plan ✘ No free plan ✓ Has free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas mobile desktop saas on-premise mobile desktop
Integrations Salesforce Adobe Creative Cloud Slack Zoom DocuSign GitHub ServiceNow Trello Dropbox Zapier Nextcloud ownCloud Confluence Jira Alfresco SharePoint Moodle WordPress Slack Dropbox
Target Users small-business mid-market enterprise freelancer small-business mid-market enterprise
Target Industries education government it-services
Customer Count 0 0
Founded Year 1975 2009
Headquarters Redmond, USA Riga, Latvia

Overview

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Microsoft 365

Microsoft 365 provides you with a complete suite of productivity tools designed to help you create, communicate, and collaborate from anywhere. You get access to familiar applications like Word, Excel, and PowerPoint, enhanced with real-time co-authoring and AI-powered features. Whether you are writing a report, analyzing data, or building a presentation, you can work across your desktop, tablet, and mobile devices with files that stay synced automatically.

Beyond document creation, the platform serves as your central hub for teamwork through Microsoft Teams and secure cloud storage via OneDrive. You can host video meetings, chat with colleagues, and share files securely with internal and external partners. It solves the problem of fragmented workflows by consolidating your email, calendar, and project files into a single, secure ecosystem that protects your data with enterprise-grade security features.

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ONLYOFFICE Docs

ONLYOFFICE Docs provides you with a comprehensive suite of online editors for documents, spreadsheets, presentations, and digital forms. You can create complex documents with high-quality formatting and work with PDF files directly in your browser. It uses OOXML as a core format, ensuring maximum compatibility with Microsoft Office files while offering a clean, tabbed interface that keeps your workspace organized.

You can collaborate with your team in real-time using two different co-editing modes—Fast for seeing changes instantly or Strict for private drafting. The platform is highly flexible, allowing you to integrate it into your existing web application or deploy it on your own private server for total data control. Whether you are a small team or a large enterprise, it helps you maintain a secure, centralized environment for all your professional documentation needs.

Overview

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Microsoft 365 Features

  • Real-Time Co-authoring Work on the same document simultaneously with your teammates and see their changes happen instantly in Word, Excel, and PowerPoint.
  • Intelligent Cloud Storage Store your files in OneDrive to access them from any device and share them securely with anyone inside or outside your organization.
  • Unified Communication Host high-definition video calls, instant message your team, and manage group projects all within the Microsoft Teams interface.
  • Advanced Security Protect your business data across all devices with built-in malware protection, encryption, and multi-factor authentication to prevent unauthorized access.
  • AI-Powered Assistance Improve your writing, design better slides, and analyze complex data faster with intelligent suggestions built directly into your favorite apps.
  • Cross-Device Syncing Start a project on your office desktop and finish it on your mobile phone with apps that remember exactly where you left off.
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ONLYOFFICE Docs Features

  • Professional Document Editor. Create and format complex text documents with advanced styling tools and full compatibility with Microsoft Word formats.
  • Powerful Spreadsheet Tool. Analyze your data using over 450 functions and formulas while creating visual charts to track your key metrics.
  • Collaborative Presentation Builder. Design stunning slide decks with your team using transitions, animations, and integrated photo editing tools for a polished look.
  • Digital Form Creator. Build fillable forms and automate your data collection by creating templates that others can complete and sign electronically.
  • Real-time Co-editing. Work together on the same file simultaneously using comments, built-in chat, and track changes to stay perfectly synced.
  • PDF Editor and Converter. View, annotate, and edit PDF files directly or convert them into editable formats to update your existing resources.

Pricing Comparison

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Microsoft 365 Pricing

Microsoft 365 Business Basic
$6
  • Web and mobile versions of Office apps
  • 1 TB of cloud storage per user
  • Business-class email (50 GB mailbox)
  • Microsoft Teams for up to 300 users
  • Standard security and support
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ONLYOFFICE Docs Pricing

Community Edition
$0
  • Up to 20 simultaneous connections
  • Document, sheet, and slide editors
  • Mobile web viewers
  • Community support
  • Regular updates

Pros & Cons

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Microsoft 365

Pros

  • Industry-standard tools ensure compatibility with clients and partners
  • Massive cloud storage included with every paid seat
  • Seamless integration between email, calendar, and file storage
  • Regular feature updates and security patches included automatically

Cons

  • Desktop applications can be resource-heavy on older computers
  • Initial setup and admin portal have a learning curve
  • Offline syncing occasionally experiences conflicts during heavy collaboration
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ONLYOFFICE Docs

Pros

  • Excellent compatibility with Microsoft Office file formats
  • Flexible deployment options including on-premise and cloud
  • Clean and intuitive tabbed ribbon interface
  • Strong security features for sensitive data management
  • Cost-effective alternative to major office suites

Cons

  • Steep learning curve for self-hosted installation
  • Mobile app interface can feel slightly restricted
  • Limited third-party plugin library compared to competitors
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