ONLYOFFICE offers a suite of productivity tools with the following features:

1. Document Editors: Create and edit documents, spreadsheets, and presentations with a rich set of formatting tools.
2. Collaboration: Real-time collaboration on documents with simultaneous editing, comments, and track changes.
3. Cloud Storage: Store documents securely in the cloud with access from any device.
4. Integration: Connect with popular cloud storage services like Google Drive, Dropbox, and OneDrive.
5. Project Management: Tools for project planning, task management, and team collaboration.
6. CRM and Mail: Integrated CRM and email tools for managing customer relationships and communication.
7. Security: Robust security features including encryption, user permissions, and access controls.
8. Customizable Interface: Personalize the user interface and settings to match workflow preferences.
9. Offline Access: Work offline with automatic synchronization when back online.
10. API Access: Integrate with other applications and services using the provided API.