Free secure cloud storage | proton
Your data, your rules Proton provides easy-to-use encrypted email, calendar, file storage, VPN, and much more, built on the principle of your data, your rules.
Proton Docs and Proton Sheets enable real-time collaborative editing with end-to-end encryption. Users can share documents via secure links, track changes, add comments, and work together without exposing data to Proton or external parties. All edits are encrypted automatically.
Proton Drive integrates with Proton Mail, Calendar, Pass, and Docs within a single account. Users can access all services across desktop, tablet, and mobile with automatic syncing. One Proton Account provides unified encrypted access to communications, scheduling, storage, and authentication across all devices.
Proton offers Easy Switch tool to import files, emails, and calendars from Google, Outlook, or other providers with automatic encryption. Users can transfer their data in bulk and maintain control without relying on proprietary formats, supporting portability and reducing dependence on any single vendor.
Proton Drive provides end-to-end encrypted cloud storage where only the user holds decryption keys. Files are encrypted before upload, ensuring Proton cannot access user data. This protects against data breaches, surveillance, and unauthorized access by third parties or governments.
Proton Drive's secure file sharing allows users to generate encrypted shareable links with optional password protection and expiration dates. Recipients can access files without needing a Proton account, and the user maintains control over access permissions and can revoke them anytime.