Secure your files with end-to-end encryption
Your files, your rules
Security you can trust
Join the 100 million people and businesses who have entrusted Proton to keep their data private
End-to-end encryption by default
Proton Drive encrypts your files and folders and their metadata. No one, not even Proton, can see your files’ names, extensions, sizes, or thumbnails, making us the most secure cloud storage service.
- Elliptic curve encryption
- Zero-access encryption
- Cryptographic signatures on all files and folders
Secure file sharing
Quickly and securely share files and folders of all sizes and formats using our encypted file-sharing links. Even after you share your files, you remain in control of them with advanced security features, including:
- Password protected file sharing
- Set sharing time limits
- Track file downloads
Trust and reliability
Protect yourself from online threats such as hacks, data breaches, and government surveillance with Proton.
We provide strong technical and legal privacy protections thanks to our unique combination of strengths.
- Protected by Swiss data privacy laws
- Open source and publicly audited
- Hosted on our own servers