Proton Drive - 2026 Pricing, Features, Reviews & Alternatives

Proton Drive is a secure cloud storage solution that provides end-to-end encrypted file storage services designed for privacy-conscious individuals and organizations. The platform enables users to securely back up, store, access, and share files from any location while maintaining complete privacy and control over their data. Developed by the team behind Proton Mail, the largest encrypted email service, Proton Drive caters to users across various sectors including individuals concerned about digital privacy, businesses handling sensitive information, journalists, activists, and any organization requiring secure data storage compliant with strict privacy regulations. Based in Switzerland, the service leverages the country's privacy laws to provide an additional layer of legal protection for user data.

The platform's architecture is built around comprehensive security features that distinguish it from conventional cloud storage providers. At its core, Proton Drive implements zero-access encryption technology, meaning files are encrypted on the user's device before being uploaded to Proton's servers, rendering the data inaccessible even to Proton itself. The system supports file versioning capabilities that allow users to track changes and restore previous versions when needed. Users can create folder structures, utilize drag-and-drop functionality, and employ the built-in search tool to locate files quickly. The service offers offline access to previously synced files and automatic synchronization across multiple devices, ensuring consistent file access regardless of location.

Proton Drive's document collaboration feature, called Docs, enables users to create, edit, and collaborate on documents in real-time while maintaining end-to-end encryption, preventing exposure in data breaches or unauthorized surveillance. The platform integrates with the broader Proton ecosystem, including Proton Mail, Proton Calendar, Proton Pass, and other Proton services, creating a comprehensive privacy-focused productivity suite. The platform offers cross-device compatibility, supporting Windows, macOS, Linux, iOS, and Android operating systems through dedicated applications and a web interface. As an open-source platform, Proton Drive's code is regularly audited by third-party security experts, allowing technical users to verify the implementation of security protocols.