We are in need of a software capable of encrypting data with AES-256 to store it in the cloud.

The problem is that I need a solution to work on Windows, Linux and OS X. Previously for Windows we have used 7zip, but it has no official support for Linux or OS X.

Thank you!

  • Maybe use 3 simple encryption/decryption command lines for each OS? This seems too trivial to make a cross-platform app for. Commented Jul 20, 2014 at 19:38
  • Some users are not used to use a cli.
    – Silithus
    Commented Jul 20, 2014 at 19:53
  • 1
    What's wrong with unofficial p7zip packages? Commented Jul 20, 2014 at 19:59
  • We are looking for something with official support; maybe even a commercial software.
    – Silithus
    Commented Jul 20, 2014 at 20:01
  • 1
    7zip archives are compatible between all platforms. If you created an archive on Ubuntu and it failed to decrypt on Windows, then you made a mistake somewhere: corrupt copy or wrong password or something. Commented Jul 20, 2014 at 20:39

1 Answer 1


I'd say truecrypt, it supports Linux, OS x, and windows and it supports AES-256 encryption. All your requirements. I think it is safe to say that Truecrypt is the most widely used and among the most trusted encryption software out there, and it is free and open source.

  • @Sandel don't worry everybody uses it, if I was the creator of truecrypt I'd do the same thing, because people should know that nothing is completely safe. see this security.stackexchange.com/questions/29375/…
    – Lynob
    Commented Jul 20, 2014 at 22:10

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