0/5 stars
License: Freeware
Total downloads:103 (1 last week)
Operating system:Windows XP/Vista/7/8/10
Latest version:5.22
Screenshot collage for stunnel


stunnel 5.22 is available as a free download on our software library. The software is categorized as Internet & Network Tools. This download was scanned by our built-in antivirus and was rated as malware free.

The program's installer files are commonly found as stunnel-4.04.exe, stunnel.exe, VSW8434_93BE2BA6.exe or VSW8473_93BE2BA6.exe etc. This free PC software was developed to work on Windows XP, Windows Vista, Windows 7, Windows 8 or Windows 10 and is compatible with 32-bit systems. The actual developer of the free software is Michael Trojnara. The most popular versions among the program users are 5.0, 4.5 and 4.3.

From the developer:

Stunnel is a proxy for adding TLS encryption to existing clients and servers without any change in the programs' code. Stunnel uses the OpenSSL library for cryptography, so it supports whatever cryptographic algorithms are compiled into the library. It can benefit from the FIPS 140-2 validation of the OpenSSL FIPS Object Module, as long as the building process meets its Security Policy.

You may want to check out more software, such as STUNNEL-PSMAIL or GnuPG-Pack Basics Version, which might be related to stunnel.


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