最佳开源 Google Workspace 替代方案

A powerful open-source solution for managing, organizing, and searching your digital documents with ease and efficiency.

Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.

Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.

Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.

Complete free office suite compatible with Microsoft formats (.doc, .docx, .xls, .xlsx, .ppt, .pptx). Open source alternative with regular updates.