Cryptpad

CryptPad is a collaborative office suite that is end-to-end encrypted and open-source.

CryptPad is like Google Docs, but with end-to-end encryption and a strong focus on privacy. It’s an open-source, collaborative office suite where you can create documents, spreadsheets, kanban boards, and more—all while keeping your data secure and private.

No personal info is required to use CryptPad. You can share documents with anyone via a link, and everything is encrypted so only you and your collaborators can see the content. It’s self-hostable, ad-free, and designed for teams or individuals who want to collaborate without compromising privacy.