Viivo SecretSync has been discontinued. Similar apps include Cryptomator, which is open source with a free version. Other options are Encrypto, encfs4win, EncFSMP and S.S.E. File Encryptor. In total there are eight Disk Encryption Tools like Viivo SecretSync for Windows, Mac, Linux, Android and iPhone.
Cryptomator provides transparent, client-side encryption for your cloud. Protect your documents from unauthorized access. Cryptomator is free and open source software, so you can rest assured there are no backdoors.
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Encrypto lets you encrypt files before sending them to friends or coworkers. Just drop a file into Encrypto, set a password, and then send it however you normally would — but this time with added security. It’s free for both Mac and Windows.
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S.S.E. File Encryptor is a cross-platform encrypter/decrypter of files and folders.
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SecurStick is a free portable application that lets you carry encrypted files on your USB drive. You can use the drive on any computer to access and modify those files WITHOUT needing any administrator privileges.
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Crypter is a console utility to encode-decode, encrypt-decrypt, or digest any file with 64 bases, 35 ciphers, and 126 digester algorithms respectively.
Ensafer adds a layer of security to Dropbox and other cloud services with end-to-end encryption of files and folders.
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