CryptPad

CryptPad is a privacy-first collaborative workspace for creating and editing documents online with end-to-end encryption. It provides a browser-based suite of office-style apps plus encrypted file storage, designed so the server cannot read your content.

Key Features

• End-to-end encrypted collaboration where document contents are encrypted in the browser
• Real-time co-editing with share links and granular sharing options (e.g., view/edit)
• Multiple app types: rich text documents, spreadsheets, presentations, kanban boards, code/markdown, whiteboard, forms, and polls
• Encrypted Drive for organizing files and documents (folders, uploads, and shared content)
• Optional accounts; supports sharing without requiring recipients to sign up
• Version history and change tracking features (vary by app)
• Team/shared spaces for organizing collaborative work
• Import/export options for common formats (varies by app)

Use Cases

• Collaborative writing and internal documentation for privacy-sensitive teams
• Collecting responses using encrypted forms/polls without exposing content to the server
• Secure project coordination using kanban/notes with share-by-link access

Limitations and Considerations

• Feature parity with mainstream office suites varies by app (advanced formatting and compatibility can be limited)
• Search/indexing of content is constrained by the encryption model

CryptPad is a strong fit for organizations and communities that want practical online collaboration while minimizing trust in the hosting server. It combines a broad set of document tools with encrypted storage and link-based sharing for flexible collaboration workflows.