Best Open Source Cryptography Software 2026

Cryptography Software

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Browse free open source Cryptography software and projects below. Use the toggles on the left to filter open source Cryptography software by OS, license, language, programming language, and project status.

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1

WinSCP

WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.

WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly or batch file scripting. Use WinSCP also for file editing, directory synchronization and site management. WinSCP is open-source and well documented. It is available in English and many other languages.

209 Reviews

Downloads: 916,923 This Week

Last Update: 3 days ago
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2

FreeArc

FreeArc combines best 7-zip and RAR features: auto-selected LZMA/PPMD/Multimedia compression, 1gb dictionary, exe/dict/delta data filters, updatable solid archives, SFXes, recovery record, AES+Twofish+Serpent encryption, Linux support and much more...

16 Reviews

Downloads: 365 This Week

Last Update: 2013-04-03
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3

GoldBug - Encrypted Communications

Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971

Downloads: 27 This Week

Last Update: 2024-07-16
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4

Browser for Tor with Onion Router

Browser for Tor based on Dooble & Vidalia as integrated Addon

Tor now plugs into the Browser. Dooble Web Browser, a secure open source userfriendly tool to explore the web secure over Tor. Steer Tor in the Browser (in Settings/Proxy/Tor) with an Add-On based on Vidalia. Just start the Add-On "Tor" in the Browser Add-On-Menu and in Settings/Proxy.

Downloads: 18 This Week

Last Update: 2014-09-07
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5

faas

faas is a federated authentication and authority server

Downloads: 0 This Week

Last Update: 2016-02-16
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