CryptPad
End-to-end encrypted collaborative office suite
Alternative to: Google Docs, Google Workspace, Microsoft 365
About
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CryptPad is an end-to-end encrypted, open-source collaboration suite that synchronizes changes to documents, spreadsheets, presentations, kanban boards, and forms in real time. All data is encrypted in the browser before it reaches the server, so even a compromised or self-hosted instance never exposes readable content to attackers or administrators. It serves as a privacy-first, self-hostable alternative to Google Docs and Microsoft 365.