OnlyOffice
Visit WebsiteOnlyOffice is a free software office suite developed by Ascensio System SIA, a company headquartered in Riga, Latvia. It features online document editors, a platform for document management, corporate communication, mail, and project management tools.
Key Features:
- Highly compatible with Microsoft Office formats
- Best bet for complete replacement of Microsoft Office
- Document editors, spreadsheets, and presentations
- Collaboration features for teams
- Available as desktop apps and web-based
- Self-hosting option available
Recommended for: Users who need maximum Microsoft Office compatibility while maintaining privacy.