[TrueCrypt is not exactly "Open Source", but the source is available. See the reviews to get more information.]
Cost / License
- Free
- Proprietary
Application type
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux




There are many alternatives to OneTime for Linux if you are looking for a replacement. The best Linux alternative is TrueCrypt, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to OneTime and 11 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to OneTime are GnuPG, Kleopatra, Enigmail and AES Crypt.
[TrueCrypt is not exactly "Open Source", but the source is available. See the reviews to get more information.]




GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.



Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .




Easily encrypt files with user-friendly software using the powerful AES standard for security on Windows, macOS, and Linux, featuring robust 256-bit encryption for safeguarding sensitive data from unauthorized access, ideal for secure data storage, email transmission, and internet uploads.








Platform-independent password-based authenticated encryption of files & folders.


GoAnywhere OpenPGP Studio™ is a free desktop tool that makes it easy to protect sensitive files using the popular OpenPGP encryption standard. Documents can be encrypted, decrypted, signed and verified from your PC or workstation using this...



DCrypt is an encryption and decryption tool that combines in a smart way multiple algorithms. The combination of multiple strong algorithms makes it much more difficult for hackers to get the plain content of the encrypted file without the password.
The Gostcrypt project has been launched at the end of 2013 as fork of the (late) Truecrypt project.
The World's First BitLocker Solution for Windows 10/8.1/8/7 Home, Windows 8 Core and Windows 7 Professional Editions!.


