OnlyOffice
ONLYOFFICE is an open-source office suite for editing documents, spreadsheets, and presentations in the browser. It provides collaborative editing features similar to Google Workspace or Microsoft Office 365, and can be integrated with self-hosted platforms like Nextcloud, ownCloud, Seafile, and more.
ONLYOFFICE is available in multiple editions, including Document Server, Workspace, and cloud-hosted versions—making it suitable for both individuals and enterprises.
Full Office Suite
Edit DOCX, XLSX, PPTX files with high compatibility with Microsoft Office formats.
Real-Time Collaboration
Co-edit documents with multi-user cursors, chat, comments, track changes, and version history.
Integration Ready
Easily integrates with platforms like Nextcloud, ownCloud, Seafile, Alfresco, Redmine, and more.
Self-Hosted & Cloud
Run it on your own server for full data control or use the cloud version.
Forms & Templates
Create and fill out interactive forms in DOCXF format (similar to PDF forms).
Security & Access Control
Role-based permissions, JWT authentication, document encryption, and private rooms for secure collaboration.
Mobile & Desktop Apps
Native apps for Windows, macOS, Linux, iOS, and Android for offline editing.
Plugin Architecture
Extend functionality with plugins like PDF export, YouTube embed, WordPress, ChatGPT, and more.