The safest way to store or share your files
Proton Drive is an end-to-end encrypted Swiss vault for your files, ensuring that nobody except those authorized by you can access your data.
Currently in beta on web.
Need secure cloud storage for work? Discover Proton for Business.


Protect your files with end-to-end encryption
Proton Drive uses end-to-end encryption, which means no one else, not even Proton, can access your files.
Your file content, file names, folder names, and paths are all fully encrypted.
Proton Drive is open source and independently audited. Anyone can verify that our encryption works as described.
Syncing and sharing made easy
Your Proton Drive is a secure vault that you can carry with you and give or revoke access to.

Free file storage
Your data, your rules
Swiss privacy

Proton Drive was built by the team behind Proton Mail, the world’s largest encrypted email service
Over 70 million people and some of the world’s largest organizations have signed up with Proton.
It works just like other file storage services, except everything is encrypted automatically.
Automatic cross-device sync means all your files are available on all your devices, all the time. Easily share files with anyone with one click.