CryptPad

Web-based office collaboration suite with end-to-end encryption for pads, spreadsheets, and kanban boards.

Main Activities:

CryptPad is a privacy-preserving alternative to Google Docs/Office365. All data encryption happens client-side, so the server never sees plaintext content. It includes modules for rich text documents, spreadsheets, slides, polls, and Kanban boards, and can be self-hosted or used on public instances.