Alternatives to Challenger for all platforms with any license

Platforms

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  • TrueCrypt icon

    TrueCrypt

    [TrueCrypt is not exactly "Open Source", but the source is available. See the reviews to get more information.] TrueCrypt is a disk encryption software for Windows Vista/XP, Mac OS X, and Linux. Creates a virtual...

    Open Source Mac Windows Linux

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    • Discontinued Currently unmaintained. Last version, TrueCrypt 7.1a, is still available for download and development has continued via the forks https://alternativeto.net/software/veracrypt/ and https://alternativeto.net/software/ciphershed/. "The development of TrueCrypt was ended in 5/2014 after Microsoft terminated support of Windows XP. Windows 8/7/Vista and later offer integrated support for encrypted disks and virtual disk images."
  • GnuPG icon

    GnuPG

    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...

    Open Source Mac Linux PortableApps.com Xfce

  • Axcrypt icon

    Axcrypt

    AxCrypt is a simple file encryption software for Windows. It integrates seamlessly with your workflow to encrypt, decrypt, store, send and work with files. Main features · Collaboration: Allow secured files to be...

    Freemium 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 provide a simple, yet powerful, tool for encrypting files using the Advanced Encryption Standard (AES). A...

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

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  • Easy File Locker icon

    Easy File Locker

    Easy File Locker is a pretty small file at 224KB and will do exactly what it says. It will let you protect a file or folder from being seen or accessed by anyone on your system. This is a light-weight program that does not slow down...

    Free Windows

  • Windows BitLocker icon

    Windows BitLocker

    No encryption of dynamic disks, but command-line-encryption! Dynamic disks must be converted to basic disks with EasyUS Partition Master or Partition Guru before encrypting with Bitlocker. Windows BitLocker & "Bitlocker To...

    Commercial Windows

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  • Podio icon

    Podio

    Podio is an online work platform. Combining hundreds of specialized and flexible work apps with messaging, tasks, reporting, workflow and contact management, Podio lets you build and shape the online workplace most fitting to your...

    Freemium Web / Cloud Android iPhone

  • Cryptkeeper

    Cryptkeeper is a Linux system tray applet that manages EncFS encrypted folders.

    Open Source Linux

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  • EncFS icon

    EncFS

    EncFS provides an encrypted filesystem in user-space. It runs without any special permissions and uses the FUSE library and Linux kernel module to provide the filesystem interface. You can find links to source and binary releases...

    Open Source Mac Linux BSD

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    • Warning The author has agreed that EncFS in its current form is dangerous (to security) for several reasons. Wikipedia has a brief summary: https://en.wikipedia.org/wiki/EncFS#General_Security_Concerns The actual audit, which the author participated in, is here: https://defuse.ca/audits/encfs.htm
  • LibreCrypt icon

    LibreCrypt

    LibreCrypt (formerly DoxBox) is an open-source disk encryption for Windows and the successor of FreeOTFE Change of name to 'LibreCrypt' in version 6.2 Features: Easy to use, with a 'wizard' for creating...

    Open Source Windows

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  • SecurStick icon

    SecurStick

    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. Available...

    Free macOS Windows Linux

    No features added Add a feature
  • Jetico BestCrypt icon

    Jetico BestCrypt

    If your computer were ever to be stolen, are you certain that your personal information cannot be discovered? Jetico’s BestCrypt software automatically encrypts your files so that nobody can read the data unless they have the right...

    Commercial Mac Windows Linux

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  • Gnome Encfs Manager icon

    Gnome Encfs Manager

    The Gnome Encfs Manager is an easy to use manager and mounter for encfs stashes featuring per-stash configuration, Gnome Keyring support, a tray menu inspired by Cryptkeeper but using the AppIndicator API and lots of unique features.

    Open Source Linux

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  • Encrypto icon

    Encrypto

    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...

    Free Mac Windows

    No features added Add a feature
  • FreeOTFE icon

    FreeOTFE

    FreeOTFE is a free, open source, "on-the-fly" (OTFE) disk encryption program for PCs running MS Windows and Windows Mobile PDAs (FreeOTFE4PDA). It creates "virtual disks" - anything written to which is...

    Open Source Windows Windows Mobile

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    • Discontinued Discontinued per Wikipedia page (https://en.wikipedia.org/wiki/FreeOTFE)
  • DCrypt icon

    DCrypt

    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...

    Open Source Linux

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  • 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. GPG Keychain is an open source application for Mac OS X. It allows you to manage your OpenPGP...

    Open Source Mac

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  • Free Hide Folder icon

    Free Hide Folder

    Free Hide Folder is a free computer security software to hide your private folders. It is very useful to keep your personal data away from others. Others will not know where your personal files exist and they will not be able to...

    Free Windows

    No features added Add a feature
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  • ProxyCrypt

    ProxyCrypt is a command line tool that creates encrypted volumes within a file or a hard drive.

    Open Source Windows ImDisk Virtual Disk Driver

    No features added Add a feature
  • 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 the access of unauthorized ones protect can. You draw the file (EN), which can be coded, simply on...

    Free Windows

    No features added Add a feature
  • My Lockbox icon

    My Lockbox

    My Lockbox is a security software enabling you to password protect any folder on your computer. The protected folder is hidden from any user and application of your system, including Administrator and System itself. It is...

    Freemium Windows

    No features added Add a feature
    • Bundleware The default installer contains OpenCandy, but a version without it is available for download. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
  • SecretFolder icon

    SecretFolder

    SecretFolder is folder hider for home and office. FEATURES * Completely 100% FREE Software * Free to use at both home and in the office * Support for 64-bit Windows. * Immediate data protection (protect and unprotect commands...

    Free Windows

    No features added Add a feature
  • Hide Folders icon

    Hide Folders

    If you are interested in protecting your documents and folders, Hide Folders is just what you are searching for. With a click you will conceal files and folders with all their contents. The program is simple and natural to use because...

    Free Mac

    No features added Add a feature
  • Steadycrypt icon

    Steadycrypt

    This is a Java-based application that allows the user to important files that are on that operating system to encrypt easy and secure and organize. Tested on WinXP, Win7 & OS X 10.6

    Open Source Mac Windows

    No features added Add a feature
  • Rohos Mini Drive icon

    Rohos Mini Drive

    Rohos Mini Drive creates hidden and encrypted partition on the USB flash drive memory. You work with the files on the hidden partition without opening a special program. Those who have megabytes of sensitive files on the USB drive and...

    Freemium Windows

    No features added Add a feature
  • 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, hiding and encrypting sensitive data? It will quickly lock, hide and encrypt files, folders or or USB...

    Free Windows

    No features added Add a feature
  • iGPMail icon

    iGPMail

    iPGMail is an app that implements the OpenPGP standard (RFC 4880, RFC 6637) and allows the user to create and manage both public and private (RSA, DSA, ECDSA) PGP keys and send and receive PGP encrypted messages.

    Commercial iPhone iPad

    No features added Add a feature
  • CyberSafe Top Secret icon

    CyberSafe Top Secret

    CyberSafe Top Secret is an information security program that uses modern encryption algorithms (RSA, AES, BlowFish, etc.).

    Commercial Windows

    No features added Add a feature
  • GostCrypt icon

    GostCrypt

    The Gostcrypt project has been launched at the end of 2013 as fork of the (late) Truecrypt project. It intends to go farther than ever. Since the late 70s, most of the algorithms used (not to say all) are UKUSA encryption systems...

    Free Mac Windows Linux

    No features added Add a feature
  • Hide Master icon

    Hide Master

    Hide Master is not only your private launcher and also a hide privacy app that hides your apps in different modes.With Guest Mode and Home Mode, you can easily make your secret APP invisible!.

    Free Android

    No features added Add a feature
  • Folder Lock icon

    Folder Lock

    Folder Lock Advanced locks your personal photos, videos, audio files, memos, documents and wallet cards detail with unbreakable password-protection.

    Freemium Windows Android iPhone Android Tablet iPad

    No features added Add a feature
  • Kakasoft Folder Protector icon

    Kakasoft Folder Protector

    Kakasoft Lockdir is an excellent folder security solution for password protecting folders. It offers strong security strength in folder protection to help you to avoid data leakage and data breach and to resist attacks from unknown...

    Freemium Windows

    No features added Add a feature

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