Alternatives to OneTime for all platforms with any license

  • TrueCrypt icon

    TrueCrypt Discontinued

    [TrueCrypt is not exactly "Open Source", but the source is available. See the reviews to get more information.] TrueCrypt...

    Open Source Mac Windows Linux

  • GnuPG icon


    GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for...

    Open Source Mac Linux Xfce

  • Axcrypt icon


    AxCrypt is a simple file encryption software for Windows. It integrates seamlessly with your workflow to encrypt, decrypt, store, send...

    Freemium Windows

  • Enigmail icon


    Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to...

    Open Source Mac Windows Linux Thunderbird SeaMonkey

  • GPG4Win icon


    Gpg4win is an installer package for Windows (2000/XP/2003/Vista) with computer programs and handbooks for email and file encryption....

    Open Source Windows

  • AES Crypt icon

    AES Crypt

    AES Crypt is an advanced file encryption utility that integrates with the Windows shell or runs from the Linux command prompt to...

    Open Source Mac Windows Linux Android iPhone Android Tablet ... iPad

  • LibreCrypt icon


    LibreCrypt (formerly DoxBox) is an open-source disk encryption for Windows and the successor of FreeOTFE Change of name to...

    Open Source Windows

  • APG icon


    Android Privacy Guard (APG) is a free and open source application for Android devices, created by Thialfihar, that lets you encrypt...

    Open Source Android Android Tablet

  • FreeOTFE icon

    FreeOTFE Discontinued

    FreeOTFE is a free, open source, "on-the-fly" (OTFE) disk encryption program for PCs running MS Windows and Windows Mobile...

    Open Source Windows Windows Mobile

  • DCrypt icon


    DCrypt is an encryption and decryption tool that combines in a smart way multiple algorithms. The combination of multiple strong...

    Open Source Linux

  • Encrypto icon


    Encrypto lets you encrypt files before sending them to friends or coworkers. Just drop a file into Encrypto, set a password, and then...

    Free Mac Windows

  • GPG Suite icon

    GPG Suite

    GPG for Mail is an open source plugin for Apple Mail. Encrypt, decrypt, sign and verify mails using OpenPGP with a few simple clicks....

    Open Source Mac

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  • Steadycrypt icon


    This is a Java-based application that allows the user to important files that are on that operating system to encrypt easy and secure...

    Open Source Mac Windows

  • Challenger icon


    Challenger is a software for the encoding of files, folders and drives. For the installation and for the execution simple user rights...

    Free Personal Windows

  • Outlook-Privacy-Plugin icon


    Outlook Privacy Plugin is a security extension for Outlook 2010. It enables Outlook 2010 to send and receive email messages that are...

    Open Source Windows Microsoft Office Outlook

  • Drag'n'Crypt ULTRA icon

    Drag'n'Crypt ULTRA

    Drag'n'Crypt ULTRA is a small, coding program assistance whose you confidential data which can be served very simply against...

    Free Windows

  • Quick File Locker icon

    Quick File Locker

    Do you want to protect private pictures, hide sensitive videos or lockdown documents? Do you want to ensure your privacy by locking...

    Free Windows

  • iGPMail icon


    iPGMail is an app that implements the OpenPGP standard (RFC 4880, RFC 6637) and allows the user to create and manage both public and...

    Commercial iPhone iPad

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  • GostCrypt icon


    The Gostcrypt project has been launched at the end of 2013 as fork of the (late) Truecrypt project. It intends to go farther than...

    Free Mac Windows Linux

  • Krypta icon


    Background: In 2013, the people of the world learned that our privacy was being violated. This 'program' is known as...

    Commercial Mac Windows Linux

  • Kruptos icon


    Lock and encrypt your photos, movies, files and folders using 256-bit file encryption. The trial version of Kruptos 2 Professional...

    Freemium Windows Android

  • GoAnywhere OpenPGP Studio icon

    GoAnywhere OpenPGP Studio

    GoAnywhere OpenPGP Studio™ is a free desktop tool that makes it easy to protect sensitive files using the popular Open PGP encryption...

    Free Mac Windows Linux BSD

  • VSEncryptor icon

    VSEncryptor Discontinued

    VSEncryptor is an easy to use file and text encryption program. You can encrypt any file or text you choose. To access the file (or...

    Free Windows

  • Encreep icon


    Simple portable GUI for GnuPG that lets you encrypt & decrypt data.

    Free Windows

  • oPenGP icon


    oPenGP is a solution to support OpenPGP standard (RFC 4880) on your iOS device.

    Commercial iPhone iPad

  • nCrypted Cloud icon

    nCrypted Cloud

    nCrypted Cloud is a Privacy, Security, and Collaboration solution that gives users full control over their personal and corporate...

    Freemium Mac Windows Web / Cloud Android

  • VSFileEncrypt icon


    VSFileEncrypt is an easy to use file encryption program. You can encrypt any file you choose. To access the file again, you would need...

    Freemium Windows

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