Proton Sheets

Proton Sheets is a secure, end-to-end encrypted spreadsheet tool designed for teams and individuals who value data privacy.

Built as part of Proton Drive, it lets you create, edit, and collaborate on spreadsheets while keeping your data fully protected from tracking, ads, or third-party access. Work in real time with collaborators, manage calculations, organize data, and share files securely—all within a privacy-first environment. Whether you’re handling financial data, business planning, or sensitive information, Proton Sheets ensures your spreadsheets remain private, encrypted, and under your control.