Zoho

Open-source office suite offering document, spreadsheet, and presentation editing with co-editing modes, plugin support, integration across 30+ services, robust security, and mobile access. Available in Community, Enterprise, and Home Server editions for versatile deployment.

A comprehensive, free office suite offering high compatibility across formats. Supports Android, iOS, Windows, Linux, macOS, and handles text, presentations, spreadsheets, and PDFs. Features document collaboration, multiple languages, strong privacy, and user support.

Suite for secure email, calendaring, file sharing, chat, and online meetings, offering real-time collaboration on docs, GDPR compliance, customizable branding, renewable energy use, advanced user management, and all data hosted in Switzerland.

Comprehensive productivity suite offering email, chat, file management, spreadsheets, and presentation tools, integrating services like Zoho Mail, WorkDrive, Cliq, and more for seamless team collaboration.

Comprehensive suite with word processor, spreadsheet, and presentation apps supporting Microsoft Office files, collaborative document creation, and advanced data analysis, including pivot tables, over 350 calculations, customizable presentation templates, and multimedia integration.