CryptPad

CryptPad is an end-to-end encrypted, open-source collaborative office suite with rich text documents, spreadsheets, presentations, forms, kanban boards, a whiteboard, a code/Markdown editor and an encrypted drive, where encryption happens in the browser so the server can never read your content. Use it free on a public instance or self-host it.

• Open-source alternative to: Microsoft 365, Google Docs, Google Drive
• Licence: AGPL-3.0 (Network copyleft open source)
• Website: https://cryptpad.org
• Source code: https://github.com/cryptpad/cryptpad
• GitHub stars: 8033, forks: 873
• Topics: office suite, encrypted collaboration, documents, spreadsheets, privacy, chainpad, collaboration, collaborative-editing, cryptpad, e2ee, end-to-end-encryption, javascript, real-time