The Best 31 stunnel Alternatives

  • OpenSSH icon

    OpenSSH

    OpenSSH is a free version of the SSH connectivity tools that technical users rely on. OpenSSH encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other attacks.

    Free Open Source Linux iPhone BSD iPad Mac Haiku Cygwin

  • OpenSSL

    OpenSSL is a framework which implements the secure socket layer. It ships with a program/library which gives you access to all those functions. With this program you can create, check or view x509 certificates.

    Free Open Source Mac OS X Windows Linux Haiku

  • wicd

    Wicd is an open source wired and wireless network manager for Linux which aims to provide a simple interface to connect to networks with a wide variety of settings.

    Free Open Source Linux Xfce

  • GnuTLS

    GnuTLS (the GNU Transport Layer Security Library) is a free software implementation of the SSL, TLS and DTLS protocols.

    Free Open Source Windows Linux

  • OpenConnect

    A VPN client compatible with Cisco AnyConnect VPN Client (now Cisco AnyConnect Secure Mobility Solution) and an open source substitute for Cisco's official Linux client.

    Free Open Source Linux Android BSD

  • Themis

    Themis is a cryptolibrary, providing high-quality security services for secure messaging and encrypted storage. Themis is aimed at modern development practices, with wrappers for Ruby, Python, PHP, Java / Android and iOS / OSX.

    Free Open Source Mac OS X Windows Linux Android iPhone iPad

  • 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...

    Free Open Source Mac OS X Windows

  • ImmediateCrypt

    ImmediateCrypt is an utility for encryption and decryption of plain text messages with the AES-256 cipher. It is released under the GPLv3 license (full Java source...

    Free Open Source Mac OS X Windows Linux

  • NCrypt

    NCrypt provides you the power to encrypt the data BEFORE it gets stored on our site. All encryption/decryption is done on the client end using AES-OFB 256bit with a...

    Free Open Source Web

  • Cryptext

    Cryptext helps you secure your writings and notes easily. Cryptext use AES algorithm to protect the content of your texts. Features : - AES encryption of your texts. - Choice of two AES methods for encryption and decryption.

    Commercial Mac OS X

  • DocWallet

    Your personal document lock box. Securely stored and always at hand. You can finally access your confidential documents from anywhere in the world - securely...

    Free Mac OS X Windows iPhone iPad

  • Cryptix

    Cryptix is a complete solution to study cryptography, encoding and ciphers. Hide your datas, encrypt your texts and documents. Cryptix contains password generators...

    Commercial Mac OS X

  • SecureBlackbox

    SecureBlackbox is a library (suite of components and classes) for software developers that allows them to provide secure data transfer and storage, digital signing and verification, encryption and compression (please refer to EldoS website...

    Commercial Mac OS X Windows Linux Android iPhone Android Tablet iPad

  • ScramDisk for Linux - SD4L

    SD4L is a suite of Linux tools and a graphical user interface (GUI) which allow the creation of, and access to ScramDisk encrypted container files. In particular, SD4L...

    Free Open Source Linux

  • abylon BASIC

    The security of sensitive data is often neglected. But the encryption of diaries, pictures or other secret documents is so simply. abylon BASIC is a collection to...

    Commercial Windows