CryptPad
Languages: English. Russian, French and other languages in page settings
CryptPad is a the end-to-end encrypted and open-source collaboration suite that allows you and your colleagues to work on the same document and synchronizes changes to documents in real time. Applications include: Rich Text, Spreadsheets, Code/Markdown, Kanban, Slides, Whiteboard and Forms. All data on CryptPad is encrypted in the browser, which provides for a greater privacy for a shared document.