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BoxCryptor is a cryptographic virtual harddisk that encrypts all data on-the-fly using the AES-256 standard. Encrypted data is stored in an arbitrary directory of your choice, e.g. one that is synced to the cloud like your Dropbox folder. Access your encrypted files on all devices. We have BoxCryptor for Windows, Android and iOS - and even support Mac OS X and Linux.

When saving files to the virtual harddisk, BoxCryptor encrypts them on-the-fly and stores the encrypted files. When reading files, BoxCryptor decrypts them in real-time so that they are accessible as any other unencrypted file.

BoxCryptor works on individual files at a time and not on container files. That means no need to resize volumes and no problems to synchronize or backup individual files! BoxCryptor is an unobtrusive status bar menu application designed to help you encrypt your files before uploading them to your cloud. The application will work with most popular cloud storage solutions, such as Dropbox, Box.net, Google Drive, Microsoft OneDrive, SugarSync and so on.

For macOS 10.12 or later
Free for personal use
Seamless workflow with integration in Apple’s Finder
Auto detection of cloud providers
Set file and folder options via context menu